Epoxy for Beginners: Mixing Epoxy Resin Basics
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- Опубликовано: 2 авг 2024
- A short video on the basics of mixing epoxy resins.
Key points:
Glove up and keep wet epoxy resin off of you. Wear appropriate PPE as your situation dictates, this could include tyvek suits, face shields, googles, etc. Uncured epoxy is a skin sensitizer and irritant.
Use the correct ratio, ratios will vary depending on epoxy type and formulation. The weight and volume ratios are often different so make sure you are using the correct ratio for the system and measuring method you are using.
Mix thoroughly scraping the sides and bottom of the container to get everything mixed correctly and completely. Mix for at least 2 minutes. 
Хобби
Finally a person that explains it !! Thank you so much. Thumbs up and a like! And a follow !
did you smoke before the video ? :D
🤣🤣🤣😂😂😂😂😂😂😂😂😂😂😂😂
Boy is baked
😭😭😂😂😂
Okay, I'm glad I'm not the only one who noticed 😂
He did and im smoking while watching him 😂😂
Nice one Thank you sir for pointing the right ratio
I was so confused on how to mix the resin and hardener, and I tried to find other videos but all of them were measuring and mixing using weight and my epoxy things says to use volume, but once I found your video it all made sense. Thank you!!
What brand you are using?
@@syedashaista1490 same thing happen with, thanks for the inputs.
@@syedashaista1490 roff
One question is, what to pour first as my product only labelled A&B, and when i did A first it got too much hot it melted the container...
Hi Sir. How to wooden base epoxy: risin and hardner? How much time it takes to stick?
I appreciate the tips, thanks!
Always wear full PPE when using this stuff! The health effects are not nice, nor worth it! Someone was sharing their own experience with it (on RUclips), and unfortunately have suffered with health conditions because of not wearing PPE.
Alway air out the room your doing it in too! . Enjoy your projects, and keep safe peeps ! 😁
Please am from Ghana West Africa and I want to know the names of the chemicals use to mix to make epoxy . Hope I will get a feedback from you soon thank you
newer epoxy's have Very low fumes like resin research it is great
what is the viscosity(mPa.s) of both resin and hardener?
Can I make jewellery in 3:1 ratio resin hardener
great tutorial - I need this, thanks!
Hello. I enjoy your videos very much. Here is my question. I made a 16’’ tall vase using resin then I made a 10x 15 x 1’’ base ( like a block ) planning to glue the vase on top of the base. Can I use resin as a glue ?
I weighed my part B, 1.49g but when i weighed the same amount of part A i used a whole lot more of part A, is that because of the thickness difference of the 2 parts??
I appriciate your work and i like to start making my own
So meaning the resin should be more than the harder?
I'm watching from Qatar
What is the name of the color usually mix the resin epoxy?
Do you jot think using a mask is Important and it's toxic?
Also do you not need to stir slow to reduce bubbles? Been watching a few videos and they seem to vary.
Thanks So much for explaining well!
You're very welcome!
Hi I have a triangle that I would like to use epoxy for. The triangle size is 50 cm x 50 cm x 50 cm. First time doing this how much show I use? Thank u for ur videos
Can epoxy resin be used for jewelry
Helpful thank you
great video thanks so much! looking forward to your next videos :) Quick question: in terms of staining wood before applying epoxy. What type of staining mix would you use, to make sure the epoxy penetrates the wood and ultimately protects its from water? Big thanks
By staining do you mean a pre-coat of epoxy to saturate the wood and seal it? Personally I don't usually pre-seal the wood unless it is a really porous piece or species. Some people do and if I were going to do that I would either use a lower viscosity epoxy like the Contemporary Composite Technologies Epoxy or System Three Clear Coat (both which we sell). Even a higher viscosity epoxy works well if you put a little heat to it or to the wood and use a slow hardener to give it time in its liquid state to soak in. The folks at WEST system did an excellent article on epoxy penetration into wood that can be found here: www.epoxyworks.com/index.php/penetrating-epoxy-legend-myth/
Every epoxy brand is different and, for beginners, low viscosity is definitely recommended because high viscosity versions are a gigantic pain in the ass to mix, remove air bubbles and its super easy to end up with a cloudy mess if you don't combine both parts JUST RIGHT.
thank you for explaining that...I will try the low viscosity for sure...
For sure i need to that chemicals first then how to mix and where i can get chemicals
Some epoxies create bubbles while mixing them and these bubbles tend to mar the output of the job. What do I do to ensure that these bubbles do not come up?
Thanks
now i am confused, I have read on different epoxy containers and online that the ratios for weight and volume are slightly different, yet i see most surfboard builders using epoxy by weight and a ratio of 2:1, are there epoxy systems that use the same ratio weather mixing by weight or volume? thanks
The density of the resin and the hardener are different hence the difference in ratios when measuring by weight rather than volume. That said the actual acceptable mix ratio is often a range, not a fixed number and while a 2:1 by weight (100:50) might not be the stated mix ratio (it is usually 100:44 for most 2:1 by volume systems) it may fall into the acceptable range for a given system. How do you find out the range? Some data sheets will give it to you like ProSet www.prosetepoxy.com/wp-content/uploads/ACE-166_ACE-265.pdf (which the 2 ratios do not overlap) or you may need to contact the epoxy manufacturer. Also even though the epoxy mix may be slightly out of ratio it may still cure, although it will not reach its full physical properties.
Hi, please what do we add to the resin and hardener to give us the colour we need??
Any powdered pigment should work like eyeshadow and mica. I saw someone use turmeric and the result came out really cool.saw someone use turmeric and the result came out really cool. Just avoid yourself from using water based paint. You should watch a video made by Peter Brown. He has a plenty videos talking about that. Here's one of them ruclips.net/video/-ZBV6CWSVns/видео.html
You made that easy ...Thank You
You're welcome!
How do you apply the mixed components to your project? do you paint on or can you pour and tilt on
Really depends on the application but most horizontal surfaces pour on and spread with a squeegee, vertical roll on with a short nap paint roller.
I am using epoxy resin lr 1150 what is the correct ratio to be used with the hardener ??
Do you have more information? Manufacturer’s name as well as the system name or number.
what surface that we can use as container so it release easy beside silicon
for a mold surface or a mixing container? We have used metal muffin pans for molds, we coat it with a release agent to get an easy release. Some plastic containers also work. The problem that you will run into with a mixing container is that it is pretty common for there to be spots on the surface of the container that did not mix and will be sticky or not fully cured.
Please name of the three solutions please
How to mix if harder is powder
How do you clean the plastic container in which you mixed the epoxy components? Or do I have to use a new one every time?
As for me, I use silicone type mixed container. I just let it dry and once it harden, I can easily peel off from the container. You can search online with a keyword "resin mixing container/cup". Hope this help 😁
Use Acetone
If I'm trying to add Q-cell filler to it, would I do the same steps and then add the Q-cells, or would the ratio for the epoxy mix change?
For adding things to epoxy, like q-cell, pigment, or other fillers, mix the epoxy first and then add the filler or colorant. That way your epoxy mix is on ratio and you should not have any issues.
How would I know if the mixture is already mixed up well? What it should look like?
Typically when you begin to mix the mixture will go cloudy and as it becomes fully mixed goes clear again. That said, if you mix for 2 minutes minimum and make sure to scrape the sides and bottom of the container and scrape the stick off periodically you should be good.
Could I use a drill with a small paddle mixer attached to the end?
You can, you still need to make sure to scrape the sides and bottom of the mixing container to get a thorough mix.
How long can I keep the mixed resin? Or it cant be stored after being mixed?
It will start to cure as soon as you mix the resin and hardener so can’t really be reused.. I would get in the habit of measuring out how much you will need to use for your project before mixing it. There’s calculators online for this or just eyeball it. If you mix too little for your project, you can always mix more if you work quick enough!
Do we have to use any catalyst to apply on a cement wall?
Is it a must to use a hardener to use epoxy?
Generally speaking since I do not know what system you are using and because your question indicates there may be some confusion to whether you are using an epoxy system or a polyester system, many epoxies will bond well to raw concrete and result in a bond that when it fails is due to substrate failure (the concrete fails). Polyester or vinylester systems require a tie coat or primer like AT Prime II. Again generally speaking most epoxy systems are a 2 part system that requires a hardener.
@@FiberglassSupply For EFG (Epoxy fiberglass), what type to used EFG bow ?
And what about the mix that fits for high quality results
The container used to mix, dispose afterward or how can it be reuse? Need any cleaning agent?
Thanks for sharing
Generally we dispose of the container. If mixing by weight it is possible to reuse the container. Also if using a pump or metering system it may be possible to reuse the container. Unwaxed paper buckets work the best for reusing as the resin bonds to it and won’t flake off.
How do you know if you have to measure by weight or volume?
It should say on the label or the tech data sheet.
Hi, how did you wash your measuring tools? Are you using the gloves to clean it?
Generally we discard the buckets after using them. There are health and safety concerns with washing them with solvent. If washing with solvent solvent proof gloves should be used, disposable single use gloves do not provide enough protection.
Mine drys sticky can't get it to fully harden
After preparing the resin when I pour it in a mould , what measures( time taken) do I have to take in order to let the resin harden and freeze ?
You've just answered your own question. Give it enough time and it will harden. If you want to be more exact, you can make a small batch and test how long it takes to harden
@@nicholaslau3194 thank u 🙏
What do you do about bubbles forming when mixing?
Use a heat gun
Awesome video,
Question- where is the best place to go for supplies/materials to get started, local home depot?
Here www.fiberglasssupply.com
You were great in half baked. 👍🤣
Can this be used for garage floors?
I did factory floors with resin. Scrabbling the floors to get a key and clean then roll first coat as a primer then another coat and add sand to give you grip. Then can SL the resin colour resin mixed with silicone sand to make thick paint Trowel on few mm and use spike roller to self level and pop bubbles
Once the two part epoxy is poured, how much time do you have to mix it?
Do you mean once the two components are poured together how much time do you have to mix it? It depends on the specific system and temperatures but for most systems at room temperature you should have plenty of time to mix it (we recommend mixing for 2 minutes) and usually 15-20 to get it out of the mixing cup and onto the project. Again those are general guidelines - specific epoxy systems can vary to much shorter and longer times so consult the data sheet for your epoxy or contact us via phone or email.
Thank you ❤
When I’m doing carbon fibre parts and use epoxy resin can I add few drops of catalyst from polyester resin mix just to help speed up the drying time Coz each coat takes 3 hours. And polyester resin goes off to fast I’ll do a test bit but just wondering if anyone else has used it
No that will not work. If you want it to go off faster add heat. Check out this video on heat an epoxy ruclips.net/video/fErvzbHOJ3k/видео.html
Nice lecture thankyou
Can you "keep" epoxy once mixed? Is there a way to prolong it's life while coating in case the area being coated takes longer than the advertised 1 hour?
If it’s already mixed with the hardener I doubt it
I recently did a project for my daughter and the box said it was a 1 to 1 ratio but it still came out sticky even after 3 months so I must have done something wrong
Is this 1:1/2 ratio?
Yes 2:1 or 1:1/2 is the same.
What kind of hardening agent and resin can you recommend that isn't expensive? When I try to look these up on the net, I see all these companies wanting your life savings for some of these products. Isn't there a budget version somewhere to practice with?
I use clear cast epoxy resin off eBay. It’s 2-1 mix And a small bottle is £20
wrong question. The correct question is where to find a supplier who sells good inexpensive epoxy in the quantities you need.
it says on botel of eoxy 1.1 does that mean same amount of each
1:1 yes same amount of each
What's the difference between epoxy hardener-hard and epoxy hardener-soft?
I am not familiar with an epoxy hardener-hard or -soft, I assume that you are referring to -fast or -slow. The chemistry of the hardener determines the speed at which it cures for a given temperature. For an epoxy resin (a side) there are usually a number of hardener speed options like fast, medium, slow, extra-slow, or tropical for each manufacturer those can vary in what they offer and what the actual speed is in minutes. Again keep in mind that the speed that the resin gels and cures is dependent on the hardener speed AND temperature, the hotter it is the faster it will gel/cure and the colder it is the slower it will gel or cure. Most data sheets give gel data at 25C for every 10 C you go higher the time will be half that and for every 10C colder double. Gel data is usually given for 100 to 150 gram mass, thin film times will be longer.
(With a drop of pigment) I didn't know the size of the mold so i had to make the epoxy mixture twice ( 2 part resin+ 1 part hardener+ 1 drop pigment as per my Resin brand instruction). After pouring the second mixture, which is only about 5 minutes later, I realised the plastic bottle mold got heated up in a few minutes and deformed the mold.
Without pigment: Previously i had done it in one go and without adding any pigment, and it went perfect.
What could be the reason for the extreme heat that deformed the plastic bottle mold and the resin expansion? Kindly help me mitigate the problem 🙏
🤔🤐
To troubleshoot a problem like this we want to look at:
Mold temperature the previous times and this time.
Volume of resin mixed this time vs the previous times.
Verify that we are using the same speed hardener as previously.
Resin and ambient temperatures from both times.
Were any exotherm mitigation techniques used either time.
Time from mixing to pouring in mold.
Resin is going to create heat as it cures this is called exotherm. The larger the mass of resin, i.e. the thicker the pour or resin volume is, the faster and hotter it will get.
It is unlikely that the pigment itself caused the issue, but could be that if you mixed the resin and then let it sit while you opened the pigment or searched for something (I've done that before), that the resin in the mixing bucket was already starting to get hot and react faster causing a train wreck when you poured it into them mold.
Basically you have a number of options to lower exotherm, reduce the sectional thickness of the part, work in cooler conditions, use a slower hardener, or use a method to cool the mold while the resin cures, are some of the options available. You can use a combination of those methods to prevent the exotherm from getting too hot.
@@FiberglassSupply thanks a lot
@@FiberglassSupply n
I mixed qcell and epoxy and when I applied to EPS board it made alot of bubbles. Why is this?
You could be beating air into it when you are mixing.
Thank you😁
You're welcome 😊
How long it's to drying
Depends on the system you are using and the temperature. For a video on using our epoxy gel time calculator check here ruclips.net/video/fErvzbHOJ3k/видео.html To use that though you need to know what the specified gel time and/or set time of your specific system is and at what temperature. The calculator is set up to use Fahrenheit.
so the harderner content might only half of the resin?
How to measure 7 to 1 epoxy
You said mix 2 liquid resin and hardener will became epoxy ☺️ is that right or I misunderstood please??
The specific epoxy resin system we used in the video is a 2 to 1, which means you mix two parts of resin to 1 part of hardener, for example 400cc of resin would be mixed with 200 cc of hardener. There are are other systems that use different ratios, like 3:1 and 5:1 so double check the mixing instructions on the specific system you are using.
What's the best kind for being very clear
What is the application and how thick are you going to apply it. Will it be indoors or outdoors?
@@FiberglassSupply I want to make a triangle with dics and D&D figuer in it so I'm not to sure how thick it would be and well I can do it out doors. I just want to make something that can sit on a table
Is epoxy dengerours for human
What brand resin are you using?
In this video Contemporary Composite Technologies, we also sell and use WEST, Pro-Set, System Three, Entropy, and Resin Research.
Thanks
Please step by step with items name
Sorry if I sound stupid(it may be the case, though)but...you said thar by quantity(volume) it is one-two. In weight is 100% 40%? I can't make it cures very well. It is(almost)always some "honey like" residues when the whole is hardened. And it takes at least 2 days depending on the size to solidify.
Thanks for de vid, was useful!
What specific resin system are you using? Are you mixing well? Is the residue waxy like in appearance and on the surface? If so it is most likely amine blush, which generally can be washed off with water and a scotchbrite pad, it is a byproduct of the amines in the hardener reacting with CO2 and water in the air.
buy good resin sound like u have crap
Here is my question. Where in the world are your safety glasses? Is the MSDS in braille?
don't be a know-it-all
What happened if we don't mix property
It may not cure properly or at all, which results in having to remove it.
Question: is it sticky stuff? In other words, will it bond well if poured onto a painted surface? When it goes off will it detach from a painted surface?
That is a good question but one that is really hard to answer due to type of paint, condition of paint, and any other surface contaminates. Even if it does stick to the paint the next question is how good of a bonding layer is the paint to the substrate? If I was wanting to go over a painted surface I would run some tests to see how well it does. In surfboard building we do often go over painted foam with epoxy, but that is a textured surface so we have some mechanical bonding also taking place in that situation.
My dipoxy is gummy and it sais 2to1 -2:1 a2 B1 and i mixed it nice and everything but it is still gummy gummy meaning u can twist it in any way so how to fix that its dry and everything just its gummy XD
What brand and system number is it and what speed hardener? First thing is to double check your temperature and the cure times given on the data sheet for the resin against how long it has been since you mixed it. It may just need more time to cure. If that is not the case mix up a small test batch around 100-150 cc and see if that hardens up, be careful to measure the batch precisely and to mix it thoroughly. If that doesn’t set properly you may have an issue with your resin system if it sets properly there was an issue with measuring/mixing the first batch. Also you need to verify whether the ratio is by volume or by weight, as densities of the epoxy and hardener are often different the mix ratio by weight will be different than the mix ratio by volume.
I need epoxy resin until the connection of the racket is broken
Are you high? 😂 great video anyway
i think you'll fond that half of 100 is 50..? not 44..??
My epoxy mix got milky-cloudy when cured... Did some research, turns out it's the moisture in the air that may contribute...
Yes that could be. Amines in the hardener react with moisture in the air to create amine blush which can manifest as a milky white especially when wet or very humid. This can be a problem if you let the mixed resin get wet while it cured or had very high humidity.
Hes high on glue 😅😂
Do u have to wear mask?
I do, better safe than sorry.
OMG!!! by volume NO! I only use a scale way!!!! better accuracy
How high are you?
"6'1" 🤣
Hardener should go in first..
Our experience has been that the most important two things for getting a proper mix are to be on ratio and to mix thoroughly scraping the sides and the bottom. We have not found there to be any difference whether the hardener or epoxy goes in first.
So the answer is two parts resin to one part hardener
Depends on the system, in this case it is a 2:1 system. Check the data sheet for your resin or container for mix ratios. 1:1, 2:1, 3:1, 5:1 are all common epoxy mix ratios, but the ratio will be specific to the formulation you are using. If you purchased your epoxy from us feel free to contact us directly and we'll help you out.
Lol your gloves sudently turn blue to white then blue again 😂
You forgot the most important part the mask for safety.
As much as i read resin is chemically dangerous so we should wear the right mask while mixing. Seing from what you're doing is not wearing a mask. Do you not get any harm to your health ?
Generally speaking epoxy systems have low voc content and can be worked with in liquid form in open and well ventilated spaces safely. In confined spaces safety precautions should be taken. You should always check the specific safety data sheet for the product that you are using. West System has a great page on epoxy safety here: www.westsystem.com/safety/
Far from perfect. Thumb down. Not done homework for making multiple reuse of containers and how to mix small quantities. I personally believe a silicone stick from kitchen is better then wooden stick because it will mix better to the edges of a container and epoxy doesn't bond to a silicone, so in theory you can reuse that mixing stick many times. I'm looking for a small silicone reusable containers for the same reason. Not sure if they're easy to use, but I hope.
another know it all
Just say no to drugs
how about mixing with colors, like white paint? any paints that are better? like acrylics?
You can mix with pigment designed for resin or with dry powder pigments. I would not mix with paint.
@@FiberglassSupply luckily I ordered the white pigment for my epoxy resin, I saw one guy using dark grey spray paint into the white epoxy to make the veins,