I have used the cornstarch method several times, and I find it works very well. You simply did it wrong. You are supposed to add a small amount of acrylic craft paint to it, not just to colour it, but to speed up the curing process. You are also supposed to mix a lot of the cornstarch into the silicone while it is still in the cup. This will make it much less sticky when you start kneading it. While I do wear gloves and frequently get sticky fingers, I have actually used my bare hands with the cornstarch method on occasion without having to remove goo from my hands afterwards. The mixture cures very quickly, often within 15 minutes(!). The molds are not crumbly like your's was. They are firm and hard like those little bouncey rubber balls I used to play with when I was a kid, and the detail they pick up is marvelous.
I agree. I use the cornstarch and silicone method all the time and it works great for me. I just mix it really well and thoroughly in the mixing cup. I don’t handle it at all (like kneading). I also like how quick it cures.
I've tried these methods and, after an even worse mess with the cornstarch than you got, I found a way to use it with a lot of success. Put you silicone into a plastic bag and add a small amount of cornstarch (maybe half a teaspoon for the amount of silicon you used) and knead it until mixed. Cut a corner of the bag and squeeze the mix out where you want it. The more cornstarch you use, the harder it sets. For faster, smoother setting, add a couple of drops of glycerine. You can also use just the glycerine, but it take longer to set. The dishsoap molds work, but don't hold up well. I hope this helps!
Also, it seems there are two things to look for on the silicone, for it to be 100% silicone and for it to mention something about acid on the curing agents.
@@CancunManny I know that when I buy silicone for this I am careful to buy Silicone Type 1. It has a strong smell of vinegar (the acid you mention) although I think it is actually ureic acid. Silicone Type 2 doesn’t have that strong vinegar smell. There is also a $3-4 a tube difference in price. I get my Silicone Type 1 on Amazon for about $4.50 a 10 oz. tube.
@@2degucitas thank you for that clarification. I remember now that I first encountered that smell decades ago when I entered a good friends photo lab. I thought there was something wrong about saying that smell was vinegar. Thank you again!
The cornstarch one is supposed to be stirred until it becomes firm and THEN use hands to knead it. Also, you are supposed to add acrylic paint because it has a water base which causes the correct silicone to harden, like the soapy water. If you have the wrong type of silicone (II) it is not quite going to work. Silicone l is the correct type. It smells like vinegar when curing. Burns the nose a bit.
I have had quite a bit of success with this method (number 3) and recommend. Stirring it until it starts to firm is a good point it has a work time that makes it less stick as time passes. Also you can dust hands and surfaces with the corn starch to like you wewd when making dough. I usually mix it, wait a few minutes and then start to work it in to a mold
The best result I’ve had is the corn starch. However, sprinkle the starch onto your surface, then the caulk. Add a sprinkle of starch onto the caulk, and begins to fold it in. When it gets sticky, dust with starch. When you can handle it, it is ready. I tried mixing with alcohol, xylene, varsol, mineral oil. The mixes never set. Absolute failure, such as your too. So thanks for your input. Nice laughter brother. It still makes me roar. Warm regards from Canada, or is it Canader. Lol. Good-day, eh?!
I used baby powder, acrylic paint, baby oil and the silicone and my molds have lasted years. Use a tin lid to flatten the top of the molds before pressing your pieces in, this will make your moldings neater and flatter.
The cornstarch one is made like pasta. You make a mound of cornstarch, make a hollow in it, and add the silicon. Kneed it together, pulling the starch in until it is firm. Just like adding an egg to flour when making pasta. It works very well. Make sure you use the silicon that smells like vinegar, the other ones doesn’t work
3 method is fine if you put in the same effort as the others: use a suitable container, start with a layer of cornstarch to prevent silicone from sticking to the bottom, pour the silicone on top and then add some more starch. Use a stick to start incorporating and then your hands. I tried it and it was a success from the first time. I think it's even better since the starch add volume to the final mass
Same it worked for me too I out down corn starch and then put the silicone on it. Cover it in cornstarch and make sure your hands/gloves are covered in corn starch. I just dabbed on it a bit and covered it again every time it would even slightly start to stick until it could take it into my hands like a puddy 🤷♀️ the more starch you add the harder it is and less stretchy and less makes it softer and more stretchy It's actually quite awesome to me because you can make really soft ones but also firm ones and it's cheap
i had tried all of these methods, and others, prior to seeing this video. the mineral spirits/acetone can work as a pourable if you degas it in a vacuum chamber. the problem with it is that it will continue to offgas for a long time and ultimately this causes the mold to deform. the dish soap method works fine. be sure if you use this method to mix well and push out any air pockets. the oil works well if you dont add so much and so does the corn starch if, again, you dont add quite so much. it will be messy but works beautifully for a very tough mold. the corn starch method has a tendancy to dry very quickly and become diffucult to use but dries very strong. i occasionaly use the soap method still but most often i use the corn starch with some glycerin for a fast cure time and a more rugged mold. be careful to not over add the corn starch. a pointer is to use an wisk style mixer in a drill to mix it. cheers and good luck everyone
I use the cornstarch one all the time and it works beautifully for me. Flexible and durable. I put cornstarch down first on the counterand then add silicon. I kneed it together adding cornstarch add needed as I go. Hopefully you have better luck!
Use high temp red silicone, brush it over said part your going to cast, then once covered squirt in the rest and pressing it, it will cure fast and solid. No mixing with anything! plus you can pour low melt metals.
thanks for letting me know that, no, I dont want to go through all that trouble. Thanks for the link to a sensibly priced silicone mold mixture! AND its clear. I use UV resin and need to replicate my favorite mold so that its clear enough for the UV to penetrate. Again, thank you!
That silicone caulk requires contact with air to cure. You could just squeeze caulk around that figure directly. A moistened finger could smooth each layer to pack it in and remove bubbles. I have done this myself so I know. You could craft glue the figure bottom to a sheet of plastic and put the caulk on the figure directly, either out of the tube or with the soap method.
@@notafan1275 Yes. A thin layer of soap or oil to be a release agent. I found out the hard way that silicone sticks to plaster if I don't use release agent. The object was ruined by trying to remove the silicone.
The one with the corn starch you’re supposed to add a small amount of baby oil and acrylic paint and make a soft putty. Quickly put it into your mould and press your shapes into the mould. Keeping your gloves oiled with baby oil. You can also try the version where are you mix silicone caulking with acetone to make a pourable soft rubber mould.🥰
I'm assuming it's been said a few dozen times by now, but the third method (cornstarch) was just done wrong. Get a disposable container, put your silicone in (silicone 1), add a few drops of water or food coloring, mix with something you don't love and will be fine with throwing away. Once you've done that, put the silicone into a large (also disposable) bowl full of corn starch and continue coating it until it's not sticky... then kneed it and recoat with cornstarch. Repeat until it's not sticky and feels like playdough. It's a recipe... and the order is important. Still, fun vid and it shows how messy things can (and will) get.
I have used mineral spirits to make pourable silicone multiple times and aside from the initial smell it works great for me! The idea is to thin the silicone just long enough to cast it, then the mineral spirits evaporate leaving the dried silicone. You have to make sure that your silicone is 100% silicone, and not a mixed caulk, or it won't work, and the smell does dissipate after a few days.
adding acrylic paint ..water based.. will cure really fast .. adding liquid watercolors from the art store will make it also nice color silicone but transparent depending on how much liquid watercolor(like ink) you added ...awesome if you cast around some string of LEDS!!... the semi transparent silicone... let cure.. turn on leds... tadaaaaaa. oeeee. pretty!
Method #3: I've used it, and it works very well, but you obviously can't go at it hammer-and-tongs like you did! :D I poured out about a cup of cornstarch onto a disposable (well, reusable and disposable) plate, then squeezed the silicone on top. I kneaded the cornstarch in, gradually and carefully, until I'd gotten a smooth, pliable dough. This has become my go-to method, and I've made a bunch of molds of antique lamp finials, antique salt and pepper shakers, and other fun old knick-knacks. :)
I loved that you try all the methods I’m afraid of. Thanks! Also, I’ve heard that if you mix the 100% silicone with 100% acetone you can make runny silicone for 3D models.
This maybe a stupid question but...can you not just squeeze the silicone stuff over the thing you wanna make a cast of?? Silicone dries/cures to a rubbery consistency doesn't it?? I'm probably very wrong lol
The baby oil one will at least smell nice. With the cornstarch one you have to imagine you are kneading a loose bread dough with more and more flour until it doesn’t stick (yeahhh, right). The cool thing about the mineral spirit (Naphtha is the thinning solvent I have used. Don’t know if that is what you call mineral spirit) one is you can make it very runny so you can poor it. Add a little cornstarch and it will cure fast. Silicone cures by the absorption of water and the cornstarch provides the pathway for the water to migrate into the center.
FYI: If you want a smooth pourable silicone for making cast molds use 100% silicone roof / RV coating which comes in 1 gallon cans at your local hardware store in the roofing section.
Mr. Eaton, do you have to mix the 1% silicone roof/RV coating with anything or just pour over the item you want to make a mold for? I have a larger item I want to make a mold for and this sounds like a great idea. Thanks for any information you can provide for me.
Number 3 is what invitingly happens to me everytime I try to work flour into dough. It's a good thing I was making dense dumplings instead of light fluffy bread.
Tip for anyone who uses mineral spirits WASH YOUR HANDS BEFORE YOU TOUCH YOUR FACE OTHERWISE YOU COULD END UP GETTING A STYE. We use it to rinse machining oil off parts where i work, even after your hand has dried if you didnt wash it there is the risk of a stye.
I have watched close to 60+ videos on this topic, and have to say this was no1 in my opinion. Well, except for the cornstarch debacle. So funny! I never laugh, but I spat tea across my keyboard. Thank you!! You laughing made me laugh too.🤣😂 I thought the baby oil one wasn't going to work and was an oily mess. Some videos show it with "good" results but the stop-and-start and editing makes me think it probably wasn't "good". Your video was just how I expected it to go. Your comments were also helpful, thanks to those who mentioned why adding paint was important. I actually saw one that was oil, cornstarch, and paint which was more than 50% of the mould ingredients and I can't see how that worked. Thank you again. I let all the ads run as I hope you get extra for that. 😁 So, I feel I have educated myself enough to give this a try.
@@SteveMcDonaldArtsandCrafts were not laughing at you, but with you. I have to agree with others that have commented on this, it was pretty funny. I also loved the “I’m your father” part. Great tutorial, thank you for sharing.
I made a 2 part mold . Bottom and a top . Using soap and water. It was something. Made cardboard box base. 5x15, my subject I coated with soapy water so it would release and it did. Then the top I did couple days later. Soapy water as a releaser. Layed the top on. Couple hours later it was set. I had to work my fingers in to get it to separate. It did . Came a part where I wanted too.
Just FYI if you are going to thin it so it's able to be poured my suggestion would be to use isopropanol as isopropanol is a component that is in the formula for silicone sealant and it will not have an adverse reaction or keep the silicone from curing properly... Definitely stay away from other chemicals such as xylene and acetone and those types of things... Those things will break the silicone down and it will not cure properly... you can also use plain white vinegar but vinegar acts as a catalyst to accelerate the curing process and as a result it may work against you for time that you need to pour it out. Isopropanol is basically rubbing alcohol... do not use denatured alcohol it's completely different and will react
4:25 Steve has obviously never made old-fashioned buttermilk biscuits. Substitute flour for the cornstarch, and butter/shortening for the silicone, and it works the same way. You need a lot more powder than you thought at first. Old-fashioned biscuits were made with bare hands, right inside the top of a large flour bag.
Thank you! I have a russian made pellet gun that is no longer imported to the u.s..i used the cornstarch method to mold a new magazine for it as parts are no longer available.....it came out beautiful , all the very small details came out great! Functions as well as the original!!!!
Silicone with mineral spirit is used to waterproof heavy cloth for tents, you are suppose to brush it on the cloth and then leave it out so that the mineral spirits can evaporate and then all you have left is the silicone. The mineral spirits makes it easier to apply the silicone on the cloth.
Hiya! I just saw a guy that used two bottles of silicone and round about 8 oz of Aceton. That mold came out great! Its more for bigger items though.. he used a glass and poured a candle afterwards
I've seen the corn starch method work quite well, but the trick is to add just enough corn starch that the silicon stops adhering to the gloves and not much more than that. There's a slight loss of detail due to the texture of the corn starch but the method does seem reasonable for quick small casting projects. The "Dawn" method is, from what I've seen, the best, but is quite stinky as the solvent is pulled out of the silicon. Mind you, the technique I'd seen before involved dish soap and hot water. Using cold water may help suppress the odor somewhat, but I'd suggest a well ventilated area just the same. I had never seen the other two methods tried before. I suspect they might work if the amount of stuff added is small.
I have used building silicone to make moulds for sander fishing jigs, I get about 5 - 7 moulds out of one tube. The jigplastics is about 180 °c when I pour and the moulds hold up for 1000 of pourings. And when I have poured one I just drop the entire mould in a bucket of water.
Hi Steve, have to say I love this video, so funny laughing my socks off. So glad i didn't have to clean up all the corn starch and amazed you kept going to get it to work! Great that you show us the fails as well. Would love to join but can't justify £4.99 a month at present time.
Silicone cures because of water droplets in the air. So adding anything with water will kick off the reaction faster. That's why food coloring works. So the cornstarch one needs a fluid then the cornstarch (a lot of cornstarch) and it becomes very much like playdoh. But it takes about three times as much cornstarch than you used and some food coloring or water first. Hope this helps! It works great, I use it all the time :)
For thinning you were suppose to use Acetone, not mineral spirits. The water and soap method would work well but you seemed to be going fast and scattered between all the methods. Maybe try it again more carefully and use the right amount and place the items properly. I think you could make a good mold with that method doing it with more care.
Try the thin mold again but after you thin it down add a bit of cornstarch into it. About 1/10 of the weight of the amount of silicone caulk... it is what is needed to make it cure.
Hello, so i have done the silicone and corn flour one, it worked really well, thou i did use washing up liquid on my gloves when mixing the two ingredients together, i cast shells and crystals, as i said this one worked really well for me.. thanks for the giggles and your raspberries
I have used the cornstarch method several times, and I find it works very well. You simply did it wrong. You are supposed to add a small amount of acrylic craft paint to it, not just to colour it, but to speed up the curing process. You are also supposed to mix a lot of the cornstarch into the silicone while it is still in the cup. This will make it much less sticky when you start kneading it. While I do wear gloves and frequently get sticky fingers, I have actually used my bare hands with the cornstarch method on occasion without having to remove goo from my hands afterwards. The mixture cures very quickly, often within 15 minutes(!). The molds are not crumbly like your's was. They are firm and hard like those little bouncey rubber balls I used to play with when I was a kid, and the detail they pick up is marvelous.
I’ll give it a try 👍🏻
Should I aim for 50/50 silicone/cornstarch?
Thank you for your guidance. I recently did one wrong too, so got to try again.
I agree. I use the cornstarch and silicone method all the time and it works great for me. I just mix it really well and thoroughly in the mixing cup. I don’t handle it at all (like kneading). I also like how quick it cures.
Did it work?
plus he got baby oil all over it. He should have changed gloves and covered work area
The amount of failure you're saving me, you're a hero!
My thoughts exactly!
Learn from the mistakes of other because you won't live long enough to make them all yourself.
🤣😂😭
He's adorable the cornstarch method had me dying!🤣 It's a beautiful thing when we can laugh at ourselves. I do it all the time. Thanks for sharing ❤️
I've tried these methods and, after an even worse mess with the cornstarch than you got, I found a way to use it with a lot of success. Put you silicone into a plastic bag and add a small amount of cornstarch (maybe half a teaspoon for the amount of silicon you used) and knead it until mixed. Cut a corner of the bag and squeeze the mix out where you want it. The more cornstarch you use, the harder it sets. For faster, smoother setting, add a couple of drops of glycerine. You can also use just the glycerine, but it take longer to set. The dishsoap molds work, but don't hold up well. I hope this helps!
Also, it seems there are two things to look for on the silicone, for it to be 100% silicone and for it to mention something about acid on the curing agents.
@@CancunManny I know that when I buy silicone for this I am careful to buy Silicone Type 1. It has a strong smell of vinegar (the acid you mention) although I think it is actually ureic acid. Silicone Type 2 doesn’t have that strong vinegar smell. There is also a $3-4 a tube difference in price. I get my Silicone Type 1 on Amazon for about $4.50 a 10 oz. tube.
@@oddjobbobb
It's acetic acid, the acid in vinegar
@@2degucitas thank you for that clarification. I remember now that I first encountered that smell decades ago when I entered a good friends photo lab. I thought there was something wrong about saying that smell was vinegar. Thank you again!
Ni
The cornstarch one is supposed to be stirred until it becomes firm and THEN use hands to knead it. Also, you are supposed to add acrylic paint because it has a water base which causes the correct silicone to harden, like the soapy water. If you have the wrong type of silicone (II) it is not quite going to work. Silicone l is the correct type. It smells like vinegar when curing. Burns the nose a bit.
Use a little bit of olive oil and add more cornstarch as you go along
@@marciamarcia7449You want food grade silicone in that case
Add food coloring first then corn starch mix till it is almost dry or not sticky.
Then use it fast in 20 minutes it's hard .
I have had quite a bit of success with this method (number 3) and recommend. Stirring it until it starts to firm is a good point it has a work time that makes it less stick as time passes. Also you can dust hands and surfaces with the corn starch to like you wewd when making dough. I usually mix it, wait a few minutes and then start to work it in to a mold
I had a laugh too when I first tried this method and it was even funnier because i decided to do WITHOUT gloves. What a great time that was!
You’re the FIRST person I’ve seen who said you had COLD water! Thank you!
The best result I’ve had is the corn starch. However, sprinkle the starch onto your surface, then the caulk. Add a sprinkle of starch onto the caulk, and begins to fold it in. When it gets sticky, dust with starch. When you can handle it, it is ready. I tried mixing with alcohol, xylene, varsol, mineral oil. The mixes never set. Absolute failure, such as your too. So thanks for your input. Nice laughter brother. It still makes me roar. Warm regards from Canada, or is it Canader. Lol. Good-day, eh?!
I used baby powder, acrylic paint, baby oil and the silicone and my molds have lasted years. Use a tin lid to flatten the top of the molds before pressing your pieces in, this will make your moldings neater and flatter.
Your laugh is infectious. Having said that, I tried method one & big success 🙌
The cornstarch one is made like pasta. You make a mound of cornstarch, make a hollow in it, and add the silicon. Kneed it together, pulling the starch in until it is firm. Just like adding an egg to flour when making pasta. It works very well. Make sure you use the silicon that smells like vinegar, the other ones doesn’t work
I've watched this enough to feel a personal connection and natural concern for Oswald at this point......😂😂😂 I sure how he's been rescued. ❤
Loved it, I snorted thru you giggling at the cornstarch:) Thank you for going through such a mess, That was fun and informative
3 method is fine if you put in the same effort as the others: use a suitable container, start with a layer of cornstarch to prevent silicone from sticking to the bottom, pour the silicone on top and then add some more starch. Use a stick to start incorporating and then your hands. I tried it and it was a success from the first time. I think it's even better since the starch add volume to the final mass
Same it worked for me too
I out down corn starch and then put the silicone on it. Cover it in cornstarch and make sure your hands/gloves are covered in corn starch. I just dabbed on it a bit and covered it again every time it would even slightly start to stick until it could take it into my hands like a puddy 🤷♀️ the more starch you add the harder it is and less stretchy and less makes it softer and more stretchy
It's actually quite awesome to me because you can make really soft ones but also firm ones and it's cheap
i had tried all of these methods, and others, prior to seeing this video. the mineral spirits/acetone can work as a pourable if you degas it in a vacuum chamber. the problem with it is that it will continue to offgas for a long time and ultimately this causes the mold to deform. the dish soap method works fine. be sure if you use this method to mix well and push out any air pockets. the oil works well if you dont add so much and so does the corn starch if, again, you dont add quite so much. it will be messy but works beautifully for a very tough mold. the corn starch method has a tendancy to dry very quickly and become diffucult to use but dries very strong. i occasionaly use the soap method still but most often i use the corn starch with some glycerin for a fast cure time and a more rugged mold. be careful to not over add the corn starch. a pointer is to use an wisk style mixer in a drill to mix it. cheers and good luck everyone
I use the cornstarch one all the time and it works beautifully for me. Flexible and durable. I put cornstarch down first on the counterand then add silicon. I kneed it together adding cornstarch add needed as I go. Hopefully you have better luck!
For small things I use Sculpey clay and bake it. Comes out very detailed
sculpey used to make a flexible after-baking version. It was great for small short-run mold making. good for lightweight accesories as well.
Try using the soapy water mix up first then flatten out the silicone on the table, sprinkle the cornstarch and knead like bread.
Success or no success, experiments were great and funny too. Thanks 🙏
Steve I think would be an excellent tv show for children’s craft as he’s fun 🤩
Use high temp red silicone, brush it over said part your going to cast, then once covered squirt in the rest and pressing it, it will cure fast and solid. No mixing with anything! plus you can pour low melt metals.
thanks for letting me know that, no, I dont want to go through all that trouble. Thanks for the link to a sensibly priced silicone mold mixture! AND its clear. I use UV resin and need to replicate my favorite mold so that its clear enough for the UV to penetrate. Again, thank you!
I'm glad you did this as it saves us using a lot of silicone. I'm going to give the washing up liquid one a go.
That silicone caulk requires contact with air to cure. You could just squeeze caulk around that figure directly. A moistened finger could smooth each layer to pack it in and remove bubbles.
I have done this myself so I know. You could craft glue the figure bottom to a sheet of plastic and put the caulk on the figure directly, either out of the tube or with the soap method.
Thanks, you have answered the question I wanted to ask. Would it be a good idea to dip the figure in soapy water first for easier release?
@@notafan1275 Yes. A thin layer of soap or oil to be a release agent. I found out the hard way that silicone sticks to plaster if I don't use release agent. The object was ruined by trying to remove the silicone.
Oh my goodness the baby oil that is I think I prefer the water..Ty🇨🇦
Your laugh when you did the corn flour made my day 🤣
thank you for saving me a lot of money because I didn’t waste my money on products to try to make these molds myself!❤❤
I like the way we’re watching your first attempts at the silicone molds
Just a thought, why not just use the silcone on it's own?
The one with the corn starch you’re supposed to add a small amount of baby oil and acrylic paint and make a soft putty. Quickly put it into your mould and press your shapes into the mould. Keeping your gloves oiled with baby oil. You can also try the version where are you mix silicone caulking with acetone to make a pourable soft rubber mould.🥰
Does this release well and could you make a 3D mold with this mixture? Thank you for any advice you can help me with ;)
I'm assuming it's been said a few dozen times by now, but the third method (cornstarch) was just done wrong.
Get a disposable container, put your silicone in (silicone 1), add a few drops of water or food coloring, mix with something you don't love and will be fine with throwing away.
Once you've done that, put the silicone into a large (also disposable) bowl full of corn starch and continue coating it until it's not sticky... then kneed it and recoat with cornstarch. Repeat until it's not sticky and feels like playdough.
It's a recipe... and the order is important.
Still, fun vid and it shows how messy things can (and will) get.
I have used mineral spirits to make pourable silicone multiple times and aside from the initial smell it works great for me! The idea is to thin the silicone just long enough to cast it, then the mineral spirits evaporate leaving the dried silicone. You have to make sure that your silicone is 100% silicone, and not a mixed caulk, or it won't work, and the smell does dissipate after a few days.
I had the same result as he did, and i used 100% silicone and acetone. Took weeks to cure
adding acrylic paint ..water based.. will cure really fast .. adding liquid watercolors from the art store will make it also nice color silicone but transparent depending on how much liquid watercolor(like ink) you added ...awesome if you cast around some string of LEDS!!... the semi transparent silicone... let cure.. turn on leds... tadaaaaaa. oeeee. pretty!
.. I think I saw the one with the, cornstarch I think I'd like that.
I love doing the free form molds with the caulking and I’m working one now but have never tried this method .. your a hoot hun!💕
Method #3: I've used it, and it works very well, but you obviously can't go at it hammer-and-tongs like you did! :D
I poured out about a cup of cornstarch onto a disposable (well, reusable and disposable) plate, then squeezed the silicone on top. I kneaded the cornstarch in, gradually and carefully, until I'd gotten a smooth, pliable dough. This has become my go-to method, and I've made a bunch of molds of antique lamp finials, antique salt and pepper shakers, and other fun old knick-knacks. :)
The 3rd one looks like the right one. LOL
The darth Vader part was gold
I loved that you try all the methods I’m afraid of. Thanks! Also, I’ve heard that if you mix the 100% silicone with 100% acetone you can make runny silicone for 3D models.
I wonder if it would work using alcohol
Number 3 is literally me trying to make bread!!
😂😂😂😂🙈🙈🙈🙈
Oh I got a kick out of the cornstarch one! So funny! And Darth was hilarious! Thanks for going to all the trouble. ❤️
This maybe a stupid question but...can you not just squeeze the silicone stuff over the thing you wanna make a cast of?? Silicone dries/cures to a rubbery consistency doesn't it?? I'm probably very wrong lol
Thank you from both of us.
Ha ha! Thank you for being the “guinea pig” with these experiments! Nicely done!
The baby oil one will at least smell nice.
With the cornstarch one you have to imagine you are kneading a loose bread dough with more and more flour until it doesn’t stick (yeahhh, right).
The cool thing about the mineral spirit (Naphtha is the thinning solvent I have used. Don’t know if that is what you call mineral spirit) one is you can make it very runny so you can poor it. Add a little cornstarch and it will cure fast. Silicone cures by the absorption of water and the cornstarch provides the pathway for the water to migrate into the center.
I had forgotten about these testing silicone videos hahaha
I tried method 3 tonight before finding your videos. It was *hilarious* 🤣
Thank you, Steve.
FYI: If you want a smooth pourable silicone for making cast molds use 100% silicone roof / RV coating which comes in 1 gallon cans at your local hardware store in the roofing section.
Mr. Eaton, do you have to mix the 1% silicone roof/RV coating with anything or just pour over the item you want to make a mold for? I have a larger item I want to make a mold for and this sounds like a great idea. Thanks for any information you can provide for me.
Do tell more.
Thank you because I don't have a silicone gun.
I wonder what the ratio would be 🤔
Lol, it did make me chuckle number 3. Thanks for sharing Steve. Xxx
I’ve used the dish soap method tons and it’s my go to!!! Cheap and easy! 😊
What a lovely man and his lovely video.
Number 3 is what invitingly happens to me everytime I try to work flour into dough.
It's a good thing I was making dense dumplings instead of light fluffy bread.
I'm glad to find out I'm not that only one that ends up with %75 of the dough stuck to my hands when I'm trying to make noodles.
I rewatched this and was completely entertained by the mess and the silicone sticking to the gloves 🧤. Been there done that mess! Lol 😝
Tip for anyone who uses mineral spirits WASH YOUR HANDS BEFORE YOU TOUCH YOUR FACE OTHERWISE YOU COULD END UP GETTING A STYE. We use it to rinse machining oil off parts where i work, even after your hand has dried if you didnt wash it there is the risk of a stye.
I have watched close to 60+ videos on this topic, and have to say this was no1 in my opinion. Well, except for the cornstarch debacle. So funny! I never laugh, but I spat tea across my keyboard. Thank you!! You laughing made me laugh too.🤣😂 I thought the baby oil one wasn't going to work and was an oily mess. Some videos show it with "good" results but the stop-and-start and editing makes me think it probably wasn't "good". Your video was just how I expected it to go. Your comments were also helpful, thanks to those who mentioned why adding paint was important. I actually saw one that was oil, cornstarch, and paint which was more than 50% of the mould ingredients and I can't see how that worked. Thank you again. I let all the ads run as I hope you get extra for that. 😁 So, I feel I have educated myself enough to give this a try.
I almost spat out my coffee when you were using the cornstarch and that....ROFLMAO I loved it! shared in many groups
@@SteveMcDonaldArtsandCrafts were not laughing at you, but with you. I have to agree with others that have commented on this, it was pretty funny. I also loved the “I’m your father” part. Great tutorial, thank you for sharing.
Did the one with white spirits ever get hard enough to use? Please give an update on it. Thanks.🦋🦋🎶📽
Love the 5min mark classic.
What a mess! I appreciate you trying it so I won't have to!!
I made a 2 part mold . Bottom and a top .
Using soap and water.
It was something.
Made cardboard box base.
5x15, my subject I coated with soapy water so it would release and it did.
Then the top I did couple days later. Soapy water as a releaser. Layed the top on. Couple hours later it was set. I had to work my fingers in to get it to separate.
It did . Came a part where I wanted too.
I’ll stick with oyumaru, which is ridiculously easy to use and can easily be reformed over and over!
Just FYI if you are going to thin it so it's able to be poured my suggestion would be to use isopropanol as isopropanol is a component that is in the formula for silicone sealant and it will not have an adverse reaction or keep the silicone from curing properly... Definitely stay away from other chemicals such as xylene and acetone and those types of things... Those things will break the silicone down and it will not cure properly... you can also use plain white vinegar but vinegar acts as a catalyst to accelerate the curing process and as a result it may work against you for time that you need to pour it out. Isopropanol is basically rubbing alcohol... do not use denatured alcohol it's completely different and will react
4:25 Steve has obviously never made old-fashioned buttermilk biscuits. Substitute flour for the cornstarch, and butter/shortening for the silicone, and it works the same way. You need a lot more powder than you thought at first. Old-fashioned biscuits were made with bare hands, right inside the top of a large flour bag.
Love number three! Hilarious!
Have you ever tried coating a piece in traditional two-part silicone to capture detail but then used a cheap silicone to bulk out the mold?
Thank you! I have a russian made pellet gun that is no longer imported to the u.s..i used the cornstarch method to mold a new magazine for it as parts are no longer available.....it came out beautiful , all the very small details came out great! Functions as well as the original!!!!
Number 3 is punk pre-school, lol. Love the "farts".
Silicone with mineral spirit is used to waterproof heavy cloth for tents, you are suppose to brush it on the cloth and then leave it out so that the mineral spirits can evaporate and then all you have left is the silicone. The mineral spirits makes it easier to apply the silicone on the cloth.
Hiya! I just saw a guy that used two bottles of silicone and round about 8 oz of Aceton. That mold came out great! Its more for bigger items though.. he used a glass and poured a candle afterwards
I've seen the corn starch method work quite well, but the trick is to add just enough corn starch that the silicon stops adhering to the gloves and not much more than that. There's a slight loss of detail due to the texture of the corn starch but the method does seem reasonable for quick small casting projects. The "Dawn" method is, from what I've seen, the best, but is quite stinky as the solvent is pulled out of the silicon. Mind you, the technique I'd seen before involved dish soap and hot water. Using cold water may help suppress the odor somewhat, but I'd suggest a well ventilated area just the same. I had never seen the other two methods tried before. I suspect they might work if the amount of stuff added is small.
You can’t beat silicon rubber for the best most accurate most detailed and reusable material for castings
Who needs to hear “fail” when you can just hear “pffftthh!” instead? 😂 No translation needed. I subscribed just for that!
Sound so much like Graham Norton loll😄
Love your videos 👌
I have used building silicone to make moulds for sander fishing jigs, I get about 5 - 7 moulds out of one tube. The jigplastics is about 180 °c when I pour and the moulds hold up for 1000 of pourings. And when I have poured one I just drop the entire mould in a bucket of water.
Your laugh is contagious!
7:15
Not sure what I sound like in here, maybe a bit like Darth Vader! You are my son!
LMAO 🤣😂
Omg I died 😂🤣😂
Like like like ... Love love love, laugh laugh laugh!!! Thank you for all of it.
Absolutely dying laughing over the cornstarch!
I've had good results using the cornstarch method, but a few drops baby oil to it. You seem to have fun with this
Hi Steve, have to say I love this video, so funny laughing my socks off. So glad i didn't have to clean up all the corn starch and amazed you kept going to get it to work! Great that you show us the fails as well. Would love to join but can't justify £4.99 a month at present time.
I laughed my socks off too 🤣😂😀😊🙄🤣😃🤗
You had me and my little ones laughing when it got stuck to the glove. Nice video
Hilarious !!!! when you started laughing , you made me laugh! Ohh, I was in tears! Thanks!
The one with cornstarch was hilarious I can’t stop laughing.
The king of random RUclips did the cornstarch one and have a good tutorial about it, I have use it and work great, for simple things.
Silicone cures because of water droplets in the air. So adding anything with water will kick off the reaction faster. That's why food coloring works. So the cornstarch one needs a fluid then the cornstarch (a lot of cornstarch) and it becomes very much like playdoh. But it takes about three times as much cornstarch than you used and some food coloring or water first. Hope this helps! It works great, I use it all the time :)
@@SteveMcDonaldArtsandCrafts no problem, if you run into any issues let me know and I'd be happy to help troubleshoot. Makers gotta stick together :)
Number 3 with the corn starch was hilarious..l.
For thinning you were suppose to use Acetone, not mineral spirits. The water and soap method would work well but you seemed to be going fast and scattered between all the methods. Maybe try it again more carefully and use the right amount and place the items properly. I think you could make a good mold with that method doing it with more care.
So much fun to watch and learn! ☺️
Try the thin mold again but after you thin it down add a bit of cornstarch into it. About 1/10 of the weight of the amount of silicone caulk... it is what is needed to make it cure.
I have not tried it myself but just saw this video ruclips.net/video/sIQkFVftDZU/видео.html
Omg you gave me a good chuckle with the cornstarch. I loved your response ❤️❤️
I’ve done the silicone with washing up liquid and it worked good for me. Good show
Too funny. Lol. Your suppose to mix the cornstarch in the cup until is more moldable. Thanks for the laugh. You made my day
When you started laughing, I just about spit out my tea! Love the video and tips!
I believe you can add acrylic paint, (just a bit) to the silicone to cure if more than 1/4 in thick.
Funniest thing I’ve seen in a LONG time!!! 🤣
Hello, so i have done the silicone and corn flour one, it worked really well, thou i did use washing up liquid on my gloves when mixing the two ingredients together, i cast shells and crystals, as i said this one worked really well for me..
thanks for the giggles and your raspberries
I love watching your comparisons and experiments Steve.🤣
Lol you are a delight! And i love your laugh :)
Alright, I'm gonna have to try that method with the dishwashing soap just for fun :)
I’ve used dish soap with very good success. Use more soap than you think you need.