Prop: Shop - Molding & Casting 101: Intro to Silicone Rubber
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- Опубликовано: 22 июл 2024
- In this first part of our molding and casting series, Bill talks about the various types of silicone used for the process.
Shore Durometer
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Tools & Materials
Degassing Chamber
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Tap Plastics RTV
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Mold Max 30
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Mold Star 15
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Rebound 25
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Mold Star 20T
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Развлечения
I'm so glad you're finally doing a series on this subject!! I've been just using foam insulation to make my props but I've been looking into mold making for a while now to get a better result. Can't wait for the next vid!! Thanks Bill!
Holy Christmas Bill.... Thank You!!! I've been overwhelmed by trying to figure out which silicone to use for months. While it hasn't been my largest barrier to starting a mold/casting project, it has definitely been a big one. Can't wait for the rest of the series.
I can't wait to see the rest of this series~! Moldmaking has always been something that I've been interested in starting, but it seems incredibly daunting to get into. I really enjoy your style of breaking everything down and explaining different things. Thank you!
Great intro. Just enough detailes and simple language. Looking forward.
Great video, keep going. Really like you provided links to all the products you discussed. That really helps. Subscribed and watching.
Great overview. Hoping you will cover an explanation of what type of mold silicone is best for which kind of applications.
very informative. i have watched volpin and frank ipelito's videos but i think your series will be even more informative.
Thank Bill. I plan on casting Imperial Tie fighter pilot helmets once I finish building. Your videos will come in handy.
haha lol that moment when you're trying to learn a bunch of new stuff but then u freak out cuz you see your picture on the monitor behind Bill xD now I can die happy :D
thanks for the info its so amazing you did!!
Awesome into, thanks for all the hard work on this!
hey punished props!!!! thanks for the videos because of you guys i was able to successfully make some exotic cryatals for the exotic swords in destiny i have to recast my purple one cause i made the dye too thick but they came out great
smooth cast and vyta flex are my favs. Am currently doing a project where I will need a rigid mold and to make a flexible cast. I hope and pray it works
Thanks Man!!! Can't wait for the rest of the vids!
I have and I also have tried the Mold star 15 (not sure if I remember it right but it is the cute green silicone) and I used it for a small item but ANYWAY what was I going to say is it let out the air bubbles by itself! I didn't see any after casting but I saw them coming up when the curing started. I don't know if it works like that always but I was pleasantly surprised :)
Great intro, sir. Thank you.
Awesome video can't wait for more! When you get to casting will you cover the different types of cold casting? From powdering the mold to different mix ratios of the metal to resin. I've read of it done in many different ways and would like to know what works best.
Why can I only thumbs up this once? Thanks once again Bill.
I've been doing silicone molds for a few years but I definitely learned some stuff! Is there a video on making vacuum formed plastic molds for resin in the lineup?
Thank you so much for making this series!!!!
You're so welcome! We're glad you find it helpful :)
Could you make a master out of insulation foam like XPS foams and cover it in primer and woodglue to make it perfect? I am kinda scared that it would be molten away by the silicone
hi there! great vid! if i'm molding a one-off piece, can i use smooth-on's EZ~Mix or
Econ® Series instead? would that be a cheaper yet effective alternative to using platinum silicone?
Are you going to be discussing why a particular silicon would be better for different projects. I understand short cure times would be smaller project, but why is the gun mold really flexible while the bottle one is relatively rigid?
Hi.
Excellent video, keep it up!
Do you ever make silicon parts from hard moulds? I'm looking to make some flexible breathing hoses and wondered what silicone you'd use for that?
This is going to be so useful for me! I've been thinking of a way to make these big chains for one of my costumes I'm working on. And casting them would make it so much easier to get them looking all the same. But like you said, it's a bit daunting to see all those products out there and having no idea how best to use them/which ones to get. Although I live in Europe and some products are probably not available here, I'm sure this is going to be really useful nonetheless. So thank you in advance for all the videos on this!
***** Aww yeah! There's one in the Netherlands! Thank you so much for the link!
Thanks for the informative video. I am just starting my research in silicone moulding. I know I want to go with platinum to make my doll but still need to research what to mould with and how I will do it. I have heard I need to make my mould of platinum as well as the doll will not cure properly if Inwas to use tin for the mould and platinum for the doll. Is this correct?
could you do a video on the ins and outs of regarding silicone?
im trying to do like a box mold, my friend suggested the rebound 25 which i bought, but now realizing it is for brush on...should i not attempt a box/cup mold with rebound 25?
You should definitely do a video on making fiberglass molds! its a very helpful mold making technique for casting objects in fiberglass
Punished Props Your awsome! Thanks Bill!
Very informative as usual! Keep up the good work! :D
And just out of curiosity, can you give me a rough estimate of the shelf life of a Mold Max 30 mold?
If put in proper storage out of light, heat and so on... Does it last years or only months?
Hi, I was curious if you can put Urethane rubber in a silicone casting?
Can you use a pressure pot to take out the bubbles instead of using a vacuum chamber?
If I could just give you a hug :-) Thanks for another awesome video!
Hi all, I have a question about degassing chambers and pressure pots: specifically if I already have a pressure pot hooked to an air compressor can I just buy a vacuum pump and use the same container for both degassing and pressurizing. I know there will be some trade offs (like not having a clear lid to see the process). It is just that every $ saved on tools can be used on materials not to mention save some space on the work shop (I mean garage)
Hi Bill & Brit! I love these videos so much and have found them both entertaining and informative, hell, inspirational too. I have a project in mind that might turn out to be worth mass producing for an Etsy-type sale. The one thing I haven't found specified in your videos is to do with the original that the cast is made from. Specifically, if I were to produce something in clay (don't know which kind yet) and then make a cast from it, can the clay be used again? The reason I ask is that my storage space is limited so if I made a number of things AND had loads of casts then I'd be looking for a new home soon :)
Great video! What pump do you use for your chamber? How many cfm and single stage or two stage?
two questions; how important is the temperature of the garage you are working to the success of the mold making, and can you list the books that helped you learn on your site? this series is exciting, thank you.
I like to use alumilites high strength 3 which is very flexible and captures every tiny little detail perfectly. Can be picked up at hobby lobby and at 30 bucks a kit not to hard on the wallet
hey can you make, for example a foam gun and put silicone over that? would it work?
and also I LOVE YOUR VIDEOS!
If I make a silicone mould can I cast some using silicone without it still
Can you mold silicone with a silicone mold? I want to make a silicone version of my wedding ring. It's just a plain ring no gems nothing fancy.
Hello. i'd like to ask the appropriate material for making human body parts, i see a variety of sillicon and resin casts but still confused which to get. your help is appreciated.
thanks and regards. fan of your work.
Can someone please help me! I’m new to this and wand to create a mold for a toy tron disc outer ring but don’t know what it is made of. I have pictures of the part I can provide!
hello, i bought one your ebook for prop making using EVA foam, and im going to start making props following your guide, how well does the casts come out when molding a foam prop, i would need to seal the master before the molding process right? thank you +Punished Props
You mentioned starting with a trial size and you should get up to 6 moulds. How small is small? and do you have any good learning examples?
I have been wanting to make a Destiny Helmet for cosplay, similar to the one that you have made of lord shaxx. But instead of leaving the visor part as foam, Is it possible to use the foam visor as the master mold, so i can create a more sturdy mold for vacuum forming? Or will the foam stick to the silicone?
How do you know when it's down degassing
Thanks for the tutorials Bill! Can you please do a horns tutorial videos?? I´m having a lot of trouble making a pair of them :(
Thanks again :)
My dad works for Polytek, a company like Smooth-On. Have you tried their products, if so, which do you prefer and why?
what companies do this for foam balls
What is you opinion if I wanted to make rubber mats ? With textures and grooves ? ( I want to create a image In The rubber mat ) please point me in the right direction please
What plastic do You use to cast ?
Can you use this stuff for making a copy of a walking stick, but with a fiberglass rod down the center for sturdiness?
Looks into how LARP weapons are made ! It might help ya :D
The fiberglass rod is a great start, but please note you would need to put some sort of protection for the tip in case the rod pops out of the silicone. The walking end will get damaged over time with friction and such, so maybe consider protecting it with leather or something else ? Also, repeated use might cause tears to appear in the silicone over time
best video out there :)
I’m looking something that is water resistant to make a gasket it’s for work we are new to molds what would you recommend?
I think you'd be better off asking the folks at Smooth-On - they specialize in these materials and are better suited to giving you industrial advice.
Where do you get the ansilary materia like mixing cups and wood sticks ?
We usually get them from Reynolds Advanced Materials: www.reynoldsam.com/
I've been looking around for a video on how to make full size foam helmets. I've been wanting to make a helmet like the Keeper from The Evil Within but I'm not sure how to even start.
I was thinking of using the floor foam like I've seen before before for mounting and even viewing i'm a bit lost. Any idea's?
Thank you, this already has the gears turning in my head.
What would you suggest for a full size Giger Alien head? Was thinking Rebound 25 brush on with a 3 part plasti paste mother shell. Or a mold Star 2 piece? I have used both, just thinking the rebound will use less materials. Thanks for any advice! Awesome channel.
It really depends on what you plan to have the final piece cast in. If the head is meant to be cast in a flexible material like latex, you would make a stone mold. For a rigid casting you'd make a silicone mold kind of like this: ruclips.net/video/mZ07x2Wvwps/видео.html
Hey how about you make the 10mm pistol from fallout 3 or 4
Good stuff :)
Great help
Hello, I'm new to the channel. Can you overlap/layer different silicone density? For example ecoflex 20 on top of dragon skin 30 etc.. during? After curing or do they react with each other?
If they're both the same type of silicone it should be OK. So tin with tin or platinum with platinum. I've used Rebound with Mold Star with no problems. If you have more questions, the folks at Smooth-On should be able to help you out.
Hi, does anyone happen to know if oomoo 30 by smooth-on works ok with smooth cast 300? I wanna start molding and casting by getting the trial kits and those are the kits easily available. Thanks for any help!
Awesome! Thank you so much! Keep up the amazing work!
If the master I'm making a casting of is made from polyurethane, do I have to spray release agent before the first pour (when it's half in plasticine), to avoid the silicone mold sticking to it?
Awesome channel, the videos and tutorials are really good and explanations are laid out clearly without being too bogged down in overly tech stuff, top stuff.
The silicone shouldn't bond to the urethane.
Awesome, thank you.
What if I wanted to make concrete bricks?
I'm sorry if you have already created a video on this, but how do you make a mold that can mold internal features/ threads? I'm a new subscriber and I love your videos!
I'm not sure I fully understand your question. What kinds of internal features do you mean?
Hi. That's a great video. I do have a question we're hoping you can answer. My wife and I did a non-toxic air trying clay paw impression of our dog years ago, and now that he's passed on, we're trying to get a reverse mold of it. My big concern is that it will stain the original impression that we have. Since that's the only one we have, do you have any suggestions on how we can minimize that risk? Thanks for any insight.
I would talk to the folks at Smooth On about what material would be best for that application. www.smooth-on.com
Thanks so much for the suggestion. I really appreciate it.
Is there any molding material that would stand up to molten silver?
Not silicone, unfortunately. There are methods for casting metals that need to be *that* hot, but I've never tried any of them.
so... is it possible to make a mold for an odst helmet?
+Bill Doran Thanks man, I'm new at this and I'm still practicing how to easily construct pepakura models... But I am a huge fan of the ODST armor set, so yeah. Hopefully it won't end in a huge fireball consuming my garage.
Man that video comes in handy!
I was gonna cast a big resin crystal and i was starting to wonder which silicon i could use, sadly smooth on doesn't deliver in france so im gonna have to find something else xD
Basic "craft stores", that sell all sorts of art supplies, tend to sell cheap, soft, clear resins... Though it's easy to scuff and nick... At least, in the US.
***** Oh wow i just peeked and this looks like a great website, thanks alot!
We have a full list of our international distributors here too. :-) www.smooth-on.com/pages.php?pID=105
Smooth-On Thanks that was useful im gonna be able to use it soon!
unrelated, but who drew the cute cartoons of you two that you use for the intro?
Hey Bill, though silicone is great material but so expensive, have you tried "Composimold" which is reusable by heating? saw some product called "bubble buster" to use with it..
yeah check that out a bit.. i'm thinking to give it a try..
Bacoeng has some really nice degassing chambers.
If you doing small casting, using a smaller degassing chamber is best.
The small ones are CHEAP. $33 for 2 quarts.
Great tip!
Bill love your videos. wanna ask your opinion. I have 3d printed a full human sized ironman faceplate. it's abs plastic and I have a dream of casting it in metal to get weight and shine etc. I wanna make a mold of it and cast it in wax so I can make a refractory mold of that and melt out the wax and pour the aluminum in. I wanted to ask how do you think I best go about it. the mask as you know is a complex shape so I'm not sure how to deal with eye holes and the curve of it. and I want the mold to be ridgig enough to make wax replicas. also I've tried it on a smaller scale in a different manor and it worked to an extent.
love to see what you think on my project.
+Bill Doran thanks. forgot about that video. yeah looks complex. silicone mold inside a fiberglass shell might be able to get away with plaster shell. gotta put down mold release to separate the sides and the eyes. it'd be hard but I would totally be worth it. I wish I could just make a mold ready for liquid aluminum.
anyways awesome channel. I watch all your videos. very inspiring.
So, I have a question that you can probably answer. I want to cast silicone vacuum canister diaphragms (car parts that aren't really available anymore, or are prohibitively expensive). Seems like I would want to use a platinum cure ~30 durometer silicone for this. I have a 3D printer for making the negatives and I am essentially casting small flexible cups with about 2-3mm wall thickness so the release should be pretty easy as well. Does my analysis from what you explained here sound about right? Is there a better choice? The originals are rubber and have almost all ruptured, silicone seems like a much better alternative anyway. They should be flexible and handle many cycles and that sounds like a job for silicone.
You can actually cast in a urethane rubber! We always recommend checking with the folks at Smooth-On to see what materials will work best for your project, they're really helpful. When casting in a flexible material, you'll want to make sure your mold is rigid - something like resin or plaster. The Smooth-On folks can help with that too
@@punishedprops looking at their catalogue I think polysulfide rubber might be better in some cases, and silicone in others. I'll contact them and see what they have to say. Thank you for the info!
great video! Would it be possible to get a video where you go little bit deeper with the material? Both resin and silicone.. Pro and cons etc.. Smooth-on has like 100 different silicons and resin, little bit difficult to know where to start, great to get a crash corse so we dont need to brake the bank and buy all 100 different products :P thanks in advance!
We've got a whole series on silicone and casting, but if you ever want to get more specific information for a project I always recommend asking the customer service folks at Smooth-On! They know their products really well and do a great job helping you figure out the best option for your project.
What mold should i use to pour resin to make a look like a clear and shiny glass block (like a one slice of a kitkat with the same size and thickness - maybe longer )
And what kind of resin to use for the same block? I need it to be hard enough. A lady told me clearcast 7000, any advice?
Your help will be much appreciated
There are several options. You could use a clear cast epoxy. If you have a pressure pot you could cast it in a faster setting urethane like Smooth Cast 325.
Punished Props Academy Thanks , No I don’t have a pressure pot, and what mold should I use?
This is going to sound strange but i was wondering if one could make molds of power tool such as drills etc? The reason being i want to make negative silicone casts of certain tools without the liquid ruining the tool/machine's insides. That way i can make durable molds that i can hydro carbon or plasti dip for tool box holders instead of shadow foaming. Which never last as long or get dirty really fast. Thank you in advance.
I think there may be other methods that would work better. Vacuum forming doesn't capture as much detail as it sounds like you'd want.
@@punishedprops Yes agreed. It was a shot in the dark. Thank you
Could I get a link to the orange silicone that is used? I like the color and flexibility of it.
Does the silicone come out in that specific orange color or did you have to add silicone pigment?
Question for Punished Props
FlexSeal has introduced a new product called Flex Putty. It appears to be a rather thick and heavy silicone.
Could you evaluate it's suitably for making molds instead of the 2 part stuff you normally use. This request is more for others as right now I'm not in any position to do anything other than enjoy learning.
Thanks for letting us know you're interested in that content!
Why do you have a german subtitle for this video? :)
I was wondering how one goes about looking for places locally that sell these types of materials? I do an online search and all that comes up is Hobby Lobbies, Micheals and Hobby Town. How would one go about "searching" online for stores? Just trying to find places locally that if I need something fast that I have options.
+NiownEd Our local pottery supply store has molding supplies. Also, we have a plastic supply store that also sells molding supplies called TAP Plastic. I'd suggest looking for a pottery store, checking it out, then asking if they know of any other local suppliers.
+Brittany Doran THank you so much
I went silicone sir.mention the Indian product name sir
Can you show us how to make something to make a mold of
+Bill Doran ok thanks for the info
Hi, I could use some help with my project. I'm really wanting to get into all this molding and casting stuff (not sure what the technical term for this) but my first project I wanna make copies of my wisdom teeth (yeah that right I made a bracelet out of my wisdom teeth but I want copies just in case they break, and yes my braces are on the bracelet too) what silicone, resin I've been getting so confused with all the names, would I use or would work best on making copies of my teeth?
Thanks in advance I know that was quite the spill, and I really appreciate any help you can give me.
Also p.s. my second project, a much bigger one I've wanting to make another life mask the first one came out all right but I made the cast out of the stoney stuff and my paper mache keeps sticking to it making it impossible to make a mask or helmet with out destroying it. Is there like a resin that is a plastic that can support this or I'm not sure what I'm looking for. There's like no books on this and very few comprehensive RUclips videos.
Help me Bill Kenobi, your my only help! Again thanks in advance
+LaVar Bates I would contact the folks at Smooth-On. They will be able to help you figures out the best materials to use.
Punished Props thank you so much for the reply! So I found the body double that you and Bob used in that life mask episode and looks like the thing that I need, his later video he make the cast out of plaster.
Do you think the paper mache would stick to the plaster, or would it be better to use a plastic casting material?
Sorry one more thing would the body cast also be able to work with my wisdom teeth?
Hey Bill, I know this is a old video, so dunno if you'll see this. But I recently got a board game called Mage Knight. In it are 68 little plastic crystal tokens with jagged tops. Each being 1 cm wide and about 1 cm and a half tall. They're in 6 different colors, gold, black, green, blue, red, and white. And while they work fine for playing, they're kind of dull and the green, black, and blue ones are really dark. In low light, it's sometimes hard to tell the three apart.
So anyway, I was considering trying to use a set of fifteen of them to make a mold. And then get some resin and tints to cast nicer ones. That would be brighter shades and more transparent.
However, I've never done anything like this before, so I'm not certain what to get. I was think foam core for the box. And I'm assuming I'd just line them up in like two rows inside and pour some kind of silicone on top? I'm currently looking into Smooth Cast 325 for the resin and the tints by them as well. But I have no clue on what silicone to use. I'd like to get something that can be reused at least 6 times and capture those jagged tops. Without damaging my existing pieces in case I utterly fail and have to go back to using the base pieces. I don't have a pressure pot or anything like that, so I'd also be preferred to use something that's not super bubbly if possible.
Mold Max 29NV is a great silicone if you don't have a vacuum chamber. I'd go with Smooth Cast 326. You can tint it to get your colors and it's longer cure time will allow more bubbles to escape. You're still going to get some bubbles without a pressure pot, but it'll be pretty good.
@@punishedprops Alrighty then! Thanks for the response!
How do you attach the silicone if needed to plastic?
I'm sorry I'm not sure I understand the question
Punished Props Academy i want to make something with silicome. How?
Great video again ! Just a question, in france there isn't much of smooth-on vendors, so it's ...you know.... REALLY expensive ^^'.
Don't you have the silicone reference ? Like silicone RTV 151 ?
That's usually the only kind I can find but never tested it x).
BUT Again ! Great video ! Relly like your new serie of videos :D.
Well yea i know them, but you know, 120$ for a starter kit for one mold, i'm not calling that expensive anymore XD
Thanks a lot ! You gave me the courage to try it !
Is the beer an essential part of the poring step ? xP
You can also substitute absurd amounts of coffee. ;P
Ha ha, that's true xD
Ha ha ! I take note xDDD
what is curing inhibition?
In order for silicone to cure a chemical reaction has to take place. If there is a contaminant that gets into the mix, like latex or something similar that changes the chemical balance, the reaction won't happen correctly, causing the silicone to cure poorly or not at all.
Didnt know how expensive and how much silicon I'd actually be using when I got into my current project...
But I'm in too deep now! My wallet can forgive me later.
You kind of look like a young version of Shawn from my self reliance
"shrinkage" - giggle
Seinfeld
Useful video! Question for Builder An .. errr Bill Doran :) Ever work with Frank Ippolito? .. or maybe any rivalry? :) lolz
see also TESTED: How to mold and cast a lightsaber
ruclips.net/video/DEVi0mEaJJQ/видео.html
and TESTED: How to make Resin copies of 3D printed figures
ruclips.net/video/J1jDaZX6PCk/видео.html
***** so.. there IS a rivalry and you secretly work to destroy him! Got it! *wink :D keep the videos coming! Love em all
I like how you say "man this is expensive." then basically say deal with it. In fact buy extras to practice on to learn and then probably buy a degassing chamber.
The cost of admission is way way way high on this
why don't you call this "Selecting Silicone Type 101"?? I was hoping to learn how to make molds, negatives and positives, but this video is MISLEADING 101
This video is the first of a series! In this particular video we introduce you to silicone, check out the rest of the videos in the playlist to learn more about the molding and casting process! ruclips.net/p/PL6q0fd3ileWLwTQ6pOUb8isS4BYLjkNhH
I went silicone sir.mention the Indian product name sir
I'm sorry, but I don't know of any specific silicone products available in India. You're looking for RTV silicone: en.wikipedia.org/wiki/RTV_silicone