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Old Aug 12, 2010, 09:38 AM
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This is the Best Spray Paint to Use on Foam!

I recently searched through several forums & sites to find the type of spray paint that works well on foam & doesn't eat through it. I was mislead when I tried Krylon H20 Paint and a few others. The paint didn't go on evenly and would 'pool' together almost like water puddles on top of wax.

However, I found this paint and it is amazing! It's called Krylon Short Cuts It goes on smooth and uniform and dries very fast. It adheres very well to foam and even says its made for foam on the can. They come in small cans so you need to buy a few at about $4 each. There may be other stores that carry them or buy it online but Michaels Craft stores are where I have always found them. There are several colors and if you order online you'll have a better choice I think. Anyway, search no more, I will now always use this stuff to paint my foam planes!

http://www.krylon.com/products/short...erosol_paints/
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Old Aug 12, 2010, 05:40 PM
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sweet, I'll have to keep that in mind.

Thanks!
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Old Aug 12, 2010, 06:24 PM
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I used Krylon Short Cuts to paint this jet recently...
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Old Aug 13, 2010, 02:56 AM
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how many cans for the jet ?
or rather how well does it cover foam and other materials ?

3oz can / 85g .. sort of make sit easy to keep track of paint weight . LOL

nice jet BTW.
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Old Aug 13, 2010, 12:59 PM
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Quote:
Originally Posted by Prime_8 View Post
how many cans for the jet ?
or rather how well does it cover foam and other materials ?

3oz can / 85g .. sort of make sit easy to keep track of paint weight . LOL

nice jet BTW.
Except that's volume, not weight

Azarr
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Old Aug 13, 2010, 02:38 PM
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85g is mass/weight . LOL 85g ~ 3oz of weight as well. (using 1 oz ~= 30g )

if you use a whole can u just put ~85g of paint on her or just under 3oz

in teh case of this can it seems to be aprox' both .
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Old Aug 14, 2010, 11:29 AM
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The actual weight of the paint on the airplane after drying and overspray will be far less than 3 oz.

Scott

www.ModelAero.com
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Old Aug 14, 2010, 01:05 PM
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ah yes .. solvent is gone .

well i'm iching to get some next month , when i get over to Michaels .
i was looking at thier paints and went rite by it only last week. LOL
i have been using WB acrylic art paint and then finish with WBPU spray to fix it.
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Old Aug 14, 2010, 05:12 PM
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Thank you for the recommendation on the paint!

Yes, Krylon "Short Cuts" does say foam on the paint can and works with the Parkzone Radian foam.

Graphics and paint
Vinyl on this Radian styrofoam doesn't like to stick, but 3M clear packaging tape DOES stick well. Vinyl sticks to the 3M tape. I gave it a proper Swiss sailplane look.

- Wiped down foam with Isopropyl Alcohol
- Where I wanted graphics or typography I laid down clear 3M packaging tape first.
- Paint used is Krylon "Short Cuts" pepper red (ok with this foam, doesn't hurt it).
- Hand-cut matt black vinyl call letters.
- Hand-cut vinyl call letters under wing.
- All tail graphics are 3M tape / Red vinyl / 3m tape which added some tail weight. Good for the Radian if and when you upgrade to a larger LiPo.

Notes: What I found is that while the Krylon Short Cuts paint doesn't hurt the foam in any way, it goes on nice and leaves a good finish. However, it WILL peel off the foam quite easily in spots after it is dry. Even if you've prepped the foam. I found this out after masking the top part of the wing. Easy fix with some touch up, but I don't know how long this will last with repeated landings on Vermont grass.

- Isopropyl Alcohol works as prep, but there has to be a better paint that actually bonds with the foam and not eat into or melt it.
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Old Aug 14, 2010, 07:30 PM
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try sealing the color paint with clear WBPU

minwax has it in spray cans for glossy , matt .. n such.
it seals my acrylics on . even on tape.

it should seal & protect that paint as it is a UV block as well.

cool paint job BTW
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Old Aug 15, 2010, 11:53 AM
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Thanks for the kudos on the design. I'll look into a clear sealer, maybe there is a Krylon short cuts.
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Old Aug 16, 2010, 05:24 PM
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For Epp I just use the paint that they have at walmart for a dollar and it does more than good enough jobs:
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Old Aug 16, 2010, 11:43 PM
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Quote:
Originally Posted by flyboy321 View Post
For Epp I just use the paint that they have at walmart for a dollar and it does more than good enough jobs:
Perhaps a pic of said cheap paint? (of the bottle that is)
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Old Aug 17, 2010, 12:11 AM
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Quote:
Originally Posted by flyboy321 View Post
For Epp I just use the paint that they have at walmart for a dollar and it does more than good enough jobs:
Quote:
Originally Posted by AggressorBLUE View Post
Perhaps a pic of said cheap paint? (of the bottle that is)
The paint he's talking about is just the normal cheap spray paint they have there. I think they carry like RustOleum & Krylon etc.. Its just they everyday kind of spray paint for like $3 a tall can. It may work for his particular application but doesn't do well and is not recommended for most foams.

EPP profile foamies like the one he pictured have different properties than EPO and other types of foam. EPP is real spongy and flexible. Some foams are closed-cell or have a type of topcoat sealer on them. Its really a shot in the dark to tell whether a cheap paint will work on not. I've found even the same types of foam from different manufacturers planes will differ. I mean even if you have a cheapo plane you're looking at least $100 you spent on it right? Do you really run risk ruining it to save $2 a can? Even if you painted an entire huge plane, you're only talking like 4 cans max ...thats $8 you'd only save. Not worth it unless you know.

From my experience most cheap paints will have one of several problems: won't cover well, is too watery and wants to run or spread unevenly, pool up in little concentrated puddles or start burning & eating through the foam. The only 2 paints I'd recommend that will work for anything are the Krylon Short Cuts and the Tamiya PS paints. The Krylon SC will give you such an amazingly beautiful job you'll use it everytime, I guarantee you. It spreads evenly, coats well, has bright pop to it and dries very smooth and clean. Anyone will think your plane came stock like that. I've had 3 or 4 guys stop me at my club and ask how I painted the planes, its that good. I just painted the bottom wings of my T-28 Trojan with it. (I'll post pics tomorrow). I'm also completely painting a 48" MX2 with Krylon CS & Tamiya PS... I'll also post pics of that later this week when I finish.
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Old Aug 17, 2010, 09:03 AM
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I forgot to add this...

- Used Scotch #2080 blue low stick sensitive application masking tape
- Two cans of Krylon Short Cuts pepper red (3 oz. each — part # SCS033) to paint

It took one complete can (3 oz.) to paint the underside of the Radian wings. I had to open up my second little can to paint the top side of the wing tips and touch up from the masking tape.
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