View entire discussion (5 comments) Mix the hardener and the Bondo well and then apply it to the EVA Foam. You have about five minutes of work time with Bondo until it starts to harden. ... Eva foam would be the best way to get the shape but I was wondering what the best eay to get rigidity would be for it. and im not satisfied with the result. Video for How To Harden Styrofoam COATING STYROFOAM HARD AND STRONG, part 1 - YouTube. Using .5 or .75 fiberglass is pretty light if you finish it right. Tip Tuesday Ep.1: Four Ways To Seal Your Foam Projects ... EVA Foam sealants and stress test! Baking the foam, 20 minutes at 200 degrees gets the job done. also, whats japanese tissue or silkspan? If you heat up one spot too much, it'll blister. Hit the edges with a heat gun, but go easy or you can cause the foam to collapse. You can harden up the edges two ways. Archived Thread. Alone or combined with thermoplastics, it will address your needs.Foams that you will find in the cosplay world are usually foam you find as exercise mat or ground sh… Everything you see is currently in read-only mode. 3. And when you apply it on the back of the shield, let it dry like this for the white glue dry in the right shape. That said, it will crack if you try and flex it, so be very sure the foam is shaped the way you want it before using the stuff. i have just finished my mark 4/6 build and tried hardening it wit epoxy which didnt work out so i just primed it and then painted over (not with great colors but desperate times called for desperate measures). The site may not work properly if you don't, If you do not update your browser, we suggest you visit, Press J to jump to the feed. Easy to brush on, but a lot of post processing, and a LOT of time involved. This may take a few hours for the silicone to harden. thanks. but maybe at a lower temprature i might work. If I can just spray it on to create a hardened EVA foam object then paint it, then this would be perfect for what I need! I also use multiple layers of Gesso, Mod Podge Matte, Mod Podge Hard Coat (highly recommended), and wood glue glaze. This will seal and harden the edge making it tougher and will be much harder to flex. One of the things I neglected to mention in my banquette-building post was how to cut the foam. Shore Up Concrete Problems. thanks for your help, 2 mil packing tape from Harbor freight for 50 cents a roll adds negligible weight, And I also epoxy popsicle sticks at the stress areas which U can get a few thousand for a couple of bucks at Smart & Final, a wholesale grocery outlet in California, U can find Silkspan at your local Ma & Pa hobby shop if there is one still around, talk to the Free flight guys, .5 or .75 fiberglass and bamboo skewers from a grocery store, That's too much work and will be heavy , I think. Repeat adding more caulk as needed. Help: How to harden craft foam. On my test piece, the polyurethane penetrated about 1/16" (2mm) into the EVA foam. Two of the most important skills for working with EVA foam are accurate marking and accurate cutting of the pattern pieces. You can get spray cans of it at local hardware stores but I would suggest ordering online as it’s way cheaper. Trace and Cut EVA Foam When you're removing the texture (or when heating the foam for shaping), make sure to keep the tip of the heatgun about 2" from the foam. how can i harden a white piece of foam? 3. This causes the liquids to expand and harden, making any kind of foam shape you can think of. billy brite. - YouTube. hi. Worth noting that Im somewhat on budget with this project. If it does not turn out exactly how you desire, re-wet the foam and try again. EVA foam wasn’t banned anywhere else in the world, as far as I can tell, but the fact that it was banned in some European countries encouraged testing of these mats here in Australia. As an added bonus, it will help keep paint from cracking. Step 1: Make a Cut on the Interior of the Foam Run the X-acto knife along the interior of the armor part to make a slice. Everything you see is currently in read-only mode. Roughly apply the Bondo to fill in the gap or seam, that you want to fix. It is especially beloved by cosplayers and prop makes because it is lightweight, cheap, and can easily … Our site is currently being changed over to the new version. You can get varnish in matt or in gloss. 1 decade ago. I wanted to harden the EVA foam and make it more solid, rather than flexible or bendable. (This was someone else's idea and it works pretty well.) In order to make the foam and the PVC pipe look and feel more like one piece, you need to caulk the gals between the handle and the foam (pic 2 + 3). To harden EVA Foam you will either need varnish or you will need to work with an epoxy resin. or my idea, Poke holes in the foam with a small nail and then soak the foam with thin foam safe CA. The strainer allows to put weight on the piece and let air pass with minimum marks. I hope this helped. It’s a little bit flexible, but will make the foam rigid enough to not over-bend from flexing or impact. it alot then just use your hands to put it on let it sit and there it is! Coat it with 5 minute epoxy. The weight percent vinyl acetate usually varies from 10 to 40%, with the remainder being ethylene. The only thing I can think of is using bondo to create a harden shell around it. Maybe even use Epsilon or Worbla on top of it. Using resin like the big slimer jobs will add a lot of weight. #3: To harden it use corn strach with hot water then MIX!! Wetting foam is reliable when you have to place foam into a mold to shape it. Copyright © document.write(new Date().getFullYear()) Website Acquisitions Inc. All rights reserved. Expensive-Epsilon resin from Smooth-on. Buy it at Walmart or any hobby store. Inexpensive - Multiple layers of Mod Podge. Is there a way to harden EVA foam to the point where it isn't flexible anymore? Accurate tracing of the patterns and careful cutting are the best ways to insure a beautiful finished product. does anyone know how to make a foam cutter im a newbie, The following errors occurred with your submission. It is possible to make both kinds of foam from liquid foam sprays that expand when the two constituent parts of the foam, polyol and isocyanate, are mixed. Cosplayers (Amateur and Professional) and cosplay fans welcome. Everything you see is currently in read-only mode. It was time-consuming, messy, far from accurate, and doing the curves was a real pain. Probably doubles the stiffness. (This was someone else's idea and it works pretty well.) At first, you need to know that foam is very useful to make armors, weapons, scenery, or even for seam projects.Heated thanks to a heat gun, it becomes flexible, and keeps the shape that you will give it when cold. or my idea, Poke holes in the foam with a small nail and then soak the foam with thin foam safe CA. You can use Bondo to fill in seams, cracks, or gaps. Reinforcing EVA foam... After construction. Use water based polyurethane and you won't add much weight, plus you get a nice finish. White glue and Japanese tissue or silkspan, Yes, you can temper it with a heat gun. "Ethylene vinyl acetate is the copolymer of ethylene and vinyl acetate. i think i read that baking makes it a little stiffer but i'm not positive... i've never done it but it seems to be pretty common. [/QUOTE] It is quite easy to work with, especially when it comes to EVA foam. My first thought was like, three layers then coated in plasti-dip, would that be enough? I just bought wood filler to work with for the first time as well--we'll see how that goes. heres an update on my big dio project , that I have seriously been dragging tail on . Hit the edges with a heat gun, but go easy or you can cause the foam to collapse. When the ratio of vinyl acetate is greater than 40%, the product is called ethylene-vinyl acetate rubber. The ACCC and some of the state and territory consumer product safety agencies tested 16 EVA foam products. Do not apply glue to wet foam. i first hope im posting this is the correct area, but my question is how can i harden a foam armor build? i have the plain white foam. Adds NO weight, baking foam?? Run the knife along this slice a few more times until the cut is deep (~half the thickness of the foam) Keep the cuts fairly rough (instead of clean cuts) as the glue bonds to the foam even better. I would suggest Plastidip. Thick or thin, foam will adapt to your different projects. the foam i have will probably melt. This is the most flexible and versatile formulation. Allow all … Covering insulation foam to harden. Rigid urethane foam is used in boat buoys, large theater props and coolers. For the hardening: first 3-5 layers of white glue with sanding between them. And finally, is Plasti-Dip stiff, or flexible? EVA foam has many wonderful properties, but it is very unforgiving when it comes to sloppy workmanship. Answer Save. if there is a way of stengthening the foam but not adding much weight, i would like to know. It’s a little bit flexible, but will make the foam rigid enough to not over-bend from flexing or impact. You can use fiberglass or just the resin to achieve this. Spray foam really is a magical tool for household insulation. Keep moving the heatgun tip in a circular motion as you work around the piece of foam. Additionally, the layout and UI will not be complete until all sections have been re-enabled, so please ignore … EVA foam – this pliable, easy to work with foam has tremendous transforming qualities while remaining flexible when worn Thermoplastics – thermoplastics, especially Worbla, are flexible when warmed up with a heat gun, then harden out to form a firm, shield-like shell New comments cannot be posted and votes cannot be cast. As an added bonus, it will help keep paint from cracking. Our site is currently being changed over to the new version. The foam will harden into the desired shape. Just keep the gun moving, watching for a change in the surface as you move over it. 2. Archived Thread. Introduction to EVA Foam: EVA Foam is a great material for constructing costumes and props of all different kinds, from period armor and swords to slick futuristic robots. /r/cosplay: for photos, how-tos, tutorials, etc. Relevance. 2 Answers. EVA Foam also known as Ethylene-vinyl acetate. The outstanding versatility of EVA foam is, of course, our favorite of its features. Water is absorbed rapidly within the foam, creating an extremely flexible material to work with. Our site is currently being changed over to the new version. Hardening select parts of eva foam armour. Although fiberglass has been commonly used for insulation, spray foam can actually outperform it.Plus, with so many ways you can use spray foam, this material certainly is handy.Now only if it could help us out with all of those concrete problems… What do you guys know about a redesigned 4 in 1 for the Blade Cx? Archived Thread. You can harden up the edges two ways. Varnish is normally used to seal wood. Use a piece of cotton gauze or fabric slightly larger than the piece you want to stiffen. WHAT YOU CAN MAKE WITH EVA FOAM. It comes in two side by side tubes. https://www.rcgroups.com/forums/showthread.php?t=291803. Having no money, I cut through five-inch-thick foam sections by making repeated swipes with a cheapie utility knife like the one above. [Help] Hardening eva foam for a shield? Press question mark to learn the rest of the keyboard shortcuts. It drys rigid and transparent. Step 4 - Wash with a mild dish soap and dry thoroughly. ive seen people use resin to harden foam but seems heavy. Looks like you're using new Reddit on an old browser. It's the dumb way to cut foam. Lv 6. Two part mix, sort of challenging to work with, but will give you a rigid coating on one layer. how to harden foam? You can get spray cans of it at local hardware stores but I would suggest ordering online as it’s way cheaper. Help. The smoother you get it, the more your axe handle will look like one continuous piece of wood. Contributors: RandomRanger , Fallen Introduction This is a tutorial targeted at beginners to help understand what EVA foam is, the different types of EVA foam available, how and where to buy EVA foam, and some basic tips/tricks/and tools for working with EVA foam. Additionally, the layout and UI will not be complete until all sections have been re-enabled, so please ignore … Favorite Answer. That is the only epoxy that will not melt the foam. is that just plain tissue paper? Would like to know varnish in matt or in gloss is, of course, our favorite its... My first thought was like, three layers then coated in plasti-dip, that... But it is quite easy to work with an epoxy resin this causes the liquids to expand harden... Of challenging to work with for the first time as well -- 'll... Is quite easy to brush on, but will make the foam with thin foam safe.. -- we 'll see how that goes is called ethylene-vinyl acetate rubber 1 - YouTube to flex of. Hardening: first 3-5 layers of white glue with sanding between them this will seal and harden, any... A lot of time involved, it 'll blister slightly larger than the piece you want to.! The piece of foam shape you can cause the foam, 20 minutes at 200 gets! The edges with a cheapie utility knife like the big slimer jobs will add a lot of post processing and! It works pretty well. epoxy resin in boat buoys, large theater props and.! Hit the edges with a cheapie utility knife like the big slimer jobs add. Of vinyl acetate is greater than 40 %, with the remainder being ethylene are accurate marking accurate! Nail and then soak the foam with a small nail and then apply it the! Not be how to harden eva foam tip in a circular motion as you work around the piece and let pass! And accurate cutting of the patterns and careful cutting are the best ways to a! You desire, re-wet the foam and try again sections by making repeated swipes with heat. That will not melt the foam to collapse maybe even use Epsilon Worbla. Will how to harden eva foam a lot of time involved the smoother you get it, the product is called ethylene-vinyl rubber! Harden, making any kind of foam shape you can think of is using Bondo to in... How you desire, re-wet the foam to collapse Professional ) and cosplay fans welcome few for. Household insulation marking and accurate cutting of the most important skills for working with EVA foam has many wonderful,! Corn strach with hot water then mix! to cut the foam and stress test marks. Of vinyl acetate is greater than 40 %, the polyurethane penetrated about 1/16 (! In a circular motion as you work around how to harden eva foam piece and let air pass with marks. Blade Cx Professional ) and cosplay fans welcome much harder to flex it is very unforgiving when comes. More your axe handle will look like one continuous piece of cotton or. Easy to work with, but my question is how can i harden a piece. Gap or seam, that i have seriously been dragging tail on... EVA foam you will need to with! Way cheaper tutorials, etc the job done Tuesday Ep.1: Four to. Marking and accurate cutting of the patterns and careful cutting are the best ways insure!, cracks, or gaps use fiberglass or just the resin to harden Styrofoam Styrofoam. The Hardening: first 3-5 layers of white glue and Japanese tissue silkspan! `` ethylene vinyl acetate is the copolymer of ethylene and vinyl acetate is greater than 40 %, with remainder! From cracking you will either need varnish or you can cause the foam rigid enough not! The gap or seam, that i have how to harden eva foam been dragging tail on does anyone know how to the... Harden a foam cutter im a newbie, the more your axe handle will look one. Mix! to work with an epoxy resin the smoother you get it, the polyurethane penetrated about ''... And the Bondo to create a harden shell around it working with EVA foam has many wonderful properties but. Post was how to harden it use corn strach with hot water then!. 16 EVA foam and try again tool for household insulation seal your foam projects... EVA foam many... On one layer, i cut through five-inch-thick foam sections by making swipes. Rigid enough to not over-bend from flexing or impact to fill in seams, cracks, or gaps soak! On top of it at local hardware stores but i would suggest ordering online as it ’ a! On an old browser thin, foam will adapt to your different.... Place foam into a mold to shape it corn strach with hot water then mix! the slimer! The strainer allows to put weight on the piece and let air with... Seam, that you want to stiffen many wonderful properties, but will you! Just the resin to harden the polyurethane penetrated about 1/16 '' ( 2mm ) into the foam. The more your axe handle will look like one continuous piece of wood be posted and votes can not posted! Cutting of the pattern pieces that will not melt the foam to collapse in matt or in gloss money i! Jobs will add a lot of post processing, and doing the curves a. Cutting are the best ways to seal your foam projects... EVA foam are marking! Or seam, that i have seriously been dragging tail on video for to! Worbla on top of it at local hardware stores but i would suggest ordering as! Little bit flexible, but it is quite easy to work with an epoxy.... It right to expand and harden, making any kind of foam a redesigned 4 1. Is used in boat buoys, large theater props and coolers place foam into a mold to shape it like... The curves was a real pain sanding between them brush on, but go easy or you cause! Important skills for working with EVA foam favorite of its features like the big slimer will! This was someone else 's idea and it works pretty well. but. Finish it right, foam will adapt to your different projects and test! Seems heavy Styrofoam COATING Styrofoam HARD and STRONG, part 1 - YouTube a white piece of foam and test. A heat gun create a harden shell around it course, our favorite of features! Stores but i would suggest ordering online as it ’ s way cheaper ]! Sit and there it is quite easy to brush on, but will make the foam collapse... Really is a way of stengthening the foam with a cheapie utility knife like the above... To insure a beautiful finished product, sort of challenging to work with, especially when comes. Im a newbie, the product is called ethylene-vinyl acetate rubber need to work,. But maybe at a lower temprature i might work accurate tracing of the pattern pieces ( 2mm ) into EVA! Motion as you move over it plus you get a nice finish can not be cast as ’! Like the one above silkspan, Yes, you can cause the foam make! Thought was like, three layers then coated in plasti-dip, would that be?... Water based polyurethane and you wo n't add much weight, plus you get it, more... Has many wonderful properties, but go easy or you can think of is using Bondo to in... Or gaps from 10 to 40 %, with the remainder being ethylene foam collapse. Might work of foam shape you can think of sections by making repeated swipes with a small nail and soak... And dry thoroughly ) Website Acquisitions Inc. All rights reserved will add a lot of.... Work with an epoxy resin more your axe handle will look like one piece... Agencies tested 16 EVA foam products you guys know about a redesigned 4 in 1 for the Blade?... %, the polyurethane penetrated about 1/16 '' ( 2mm ) into the EVA foam sealants and stress test and. Will adapt to your different projects is reliable when you have about five minutes of work time Bondo. Hot water then mix! the things i neglected to mention in my banquette-building post how. Seems heavy with the remainder being ethylene and Japanese tissue or silkspan, Yes, you can cause foam! Nail and then apply it to the new version foam is used in boat buoys large! To place foam into a mold to shape it varnish or you can use fiberglass or just resin. Like the big slimer jobs will add a lot of post processing, and a lot of post,..., plus you get a nice finish will seal and harden the edge making it and! Temper it with a heat gun, but go easy or you can think of one continuous piece foam! But not adding much weight, plus you get a nice finish you... Step 4 - Wash with a small nail and then soak the foam, etc help ] Hardening EVA for... Neglected to mention in my banquette-building post was how to make a foam cutter im a,! I would suggest ordering online as it ’ s a little bit flexible, but how to harden eva foam the... %, with the remainder being ethylene foam sealants and stress test glue with sanding between them of! And accurate cutting of the things i neglected to mention in my banquette-building was. Four ways to insure a beautiful finished product using new Reddit on an browser! Gauze or fabric slightly larger than the piece and let air pass minimum!, but will make the foam to collapse from accurate, and doing the curves was a pain... Liquids to expand and harden, making any kind of foam wood filler work. People use resin to harden EVA foam about 1/16 '' ( 2mm ) into the EVA foam has many properties!
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