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Unread 04-08-2015, 03:01 AM   #1
rukipon79
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Eva Foam Help

Hi!

So I'm a first time cosplayer and I'm testing my hands within the "diy" waters.
i wanted to know if you guys could give me any tips about EVA foam?

Like what type of glue is best to used for stability, do I need a top coat or primer when I'm painting the foam, what paints to use and importantly... where the heck do I buy EVA foam QAQ

Please get back to me as soon as possible

thanks guys!!
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Unread 04-08-2015, 01:36 PM   #2
DeeperBlue
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Hello, and welcome! ^^
Ok, first off, there's a few different places you can buy eva foam depending on what you're making. For thick armor, there's floor mats like these:
http://www.amazon.com/We-Sell-Mats-I...words=eva+foam
For somewhat thinner armor, you'd use something like this: http://www.harborfreight.com/anti-fa...mat-61241.html
And lastly, there's the foam that generally comes in 9" x 12" sheets:
http://www.amazon.com/EVA-Foam-Sheet.../dp/B002NMCLW8
It also comes slightly thicker than 2mm and can be gotten from craft stores such Hobby Lobby. It's also possible to get that kind of foam in big rolls, but unfortunately can't find my bookmark for it. It's out there though.
To adhere foam together, there's a few options. I like using epoxy myself, but you can also use hot glue, and I hear Barge rubber cement works really well.
When painting foam, you'll want to make sure to heat your foam with your heat gun first. This expands the air cells in the foam so the holes won't be as big. It'll get slightly harder and a bit more shiny. When you're finished with that, you'll want to spray a few layers of Plasti-Dip on it to seal it. This gets rid of the foam texture so the surface is smooth. I also like using Frog Juice to seal it and personally think it works a bit better than Plasti-Dip, however, it cannot be bent upwards or it will crack, while Plasti-Dip can be bent safely. Just take into consideration if your project can bend at all.
http://www.signwarehouse.com/p-FL-FROG-12Z.html
For painting, just use spray paint in whatever color you fancy. Krylon, Rustoleum, and similar brands are good, just avoid the spray paint that costs like $2.00. Also, you'll want to have a test piece of your foam with the same layers of paint on it as your piece. That way, you can test your paint on it before you paint your actual piece with it, so you can see if there's going to be problems with paint interactions. As a general rule, lacquer paint (including lacquer sealers, be careful with those) can go beneath acrylics and enamels, but never on top or it eats the other paint, acrylics work well with enamel, and spraying enamel paint over enamel paint requires that the first coat of enamel has had about two days to fully cure. Hope this helped a bit.
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Unread 04-08-2015, 01:52 PM   #3
Ilafatyu
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I've found that the 2mm foam needs a canvas backing to keep from flopping around. Also, if you're using hot glue to put two layers of thinner foam together, it makes a visible line on both sides of the foam. It's fine for joins though.

Spray paint eats foam if you don't seal it first. Mod podge is another sealer, but you need to put on like 5 layers.

You can also use acrylic paint on armor, it takes a lot of bending to crack it.
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