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Old Jul 12, 2010, 12:34 PM
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Painting EPO foam

I am going to be purchasing an RTF plane that is basically all white. I would like to paint the top and underside of the wing in different colors for obvious reasons. What type of spray paint should I use/avoid?
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Old Jul 12, 2010, 12:47 PM
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Are you spray can painting or airbrushing???

Assuming spray cans....I like water based latex paints, they are safe on all foams. The real trick to spray cans is that the propellants that push out the paint can eat the foam even if the paint type itself is foam safe. Make sure you hold the spray can at least 18 inches away from the surface you are painting, this will let the propellents dispurse and prevent dammage.

Also don't use too much paint, it's quite heavy. Do two or three super light "powder coats" this will avoid runs and give even coloration. Also note that you will not get a smooth finish on foam so don't goop it on trying, paint light and stand 10-20 feet away to see how it will look in the air....that's what counts afterall.
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Old Jul 13, 2010, 02:25 PM
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Originally Posted by Nathan Schmoekel View Post
Are you spray can painting or airbrushing???

Assuming spray cans....I like water based latex paints, they are safe on all foams. The real trick to spray cans is that the propellants that push out the paint can eat the foam even if the paint type itself is foam safe. Make sure you hold the spray can at least 18 inches away from the surface you are painting, this will let the propellents dispurse and prevent dammage.

Also don't use too much paint, it's quite heavy. Do two or three super light "powder coats" this will avoid runs and give even coloration. Also note that you will not get a smooth finish on foam so don't goop it on trying, paint light and stand 10-20 feet away to see how it will look in the air....that's what counts afterall.
Thanks! That helps quite a bit. I am just trying to get some differentiating colors on the top and bottom of the wing for orientation purpose. I really do no even care how it looks. It is a functional idea. Perhaps my second plane will be my work of art. I have used a spray bomb technique that looks dead on like carbon fibre...in any color!
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Old Jul 14, 2010, 02:14 AM
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I don't know if EPO foam is the same as the HZ Super Cub foam, but I used Testors spray enamel on mine at the recommendation of the LHS and it works great. It doesn't take much to get coverage.
I used it on the rudder / elevator which is smooth, and misc plastic parts too.
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Old Sep 19, 2010, 11:05 AM
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I don't know if EPO foam is the same as the HZ Super Cub foam, but I used Testors spray enamel on mine at the recommendation of the LHS and it works great. It doesn't take much to get coverage.
I used it on the rudder / elevator which is smooth, and misc plastic parts too.
Really? I was told I could't use enamel paints on foamies? is it just EPO or all foam. I just finished painting an EPO Cessna with Acrylic. If I would have known that I definitly would have used enamel spray over the brush on arcylic I used. It peels off with the masking tape and is much more difficult to get even coverage with. I may try to remove it and repaint with enamel once this paint job starts peeling are you sure it's safe for the foam?

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Old Sep 19, 2010, 12:18 PM
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Rustoleum "Plastic" spray paint.

GWS T-6 Texan made of EPO foam.

Chuck
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Old Sep 19, 2010, 05:13 PM
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Rustoleum "Plastic" spray paint.

GWS T-6 Texan made of EPO foam.

Chuck
NICE! I like that. Here was my finished product. I'll try that paint next time, this acrylic paint sux to work with. looks pretty good though.



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Old Sep 19, 2010, 05:18 PM
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That looks GREAT! And the color scheme is perfect!
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Old Sep 19, 2010, 07:42 PM
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That looks GREAT! And the color scheme is perfect!
thanks, this acrylic peals off with the masking so I had to freehand paint the black pin stripe, other than that it just took a lot of touch up after removing the masking tape. next time I'll use latex latex spray paint made for plastic like you did.
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Old Sep 19, 2010, 08:29 PM
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thanks, this acrylic peals off with the masking so I had to freehand paint the black pin stripe, other than that it just took a lot of touch up after removing the masking tape. next time I'll use latex latex spray paint made for plastic like you did.
Test a small area first. Lots of these planes coming out of Nitroplanes and HobbyCity aren't really EPO, like they advertise.
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Old Sep 20, 2010, 09:11 AM
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The Testors paints work well on foam, even on Depron. After all it was developed for plastic planes,cars, etc. It's all I use for foam. Light with lots of pigment.

Gord.
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Old Sep 21, 2010, 03:22 AM
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NICE! I like that. Here was my finished product. I'll try that paint next time, this acrylic paint sux to work with. looks pretty good though.



That looks like the HobbyKing EPO cessna! I just ordered one of those -- how does it fly? Looked pretty good in the few videos I've seen, but it'd be great to get a quick review of it if you have the time
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Old Sep 26, 2010, 09:52 AM
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Rustoleum "Plastic" spray paint.

GWS T-6 Texan made of EPO foam.

Chuck
Hi Chuck,

..Wondering if I could use this "Plastic" spray paint on the HZ Super Cub which is made of "Z-foam"...?

Regards,
Mike
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Old Sep 26, 2010, 10:51 AM
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Hi Chuck,

..Wondering if I could use this "Plastic" spray paint on the HZ Super Cub which is made of "Z-foam"...?

Regards,
Mike
Hi Mike,

The Super Cub is also made of Depron (Tail surfaces, under fuse cooling vent cover, etc) which melts when painted with solvent type paints. Always try out in a small area first. Inside the fuse or behind the cowl is a good test place for new paints.
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Old Sep 26, 2010, 06:42 PM
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Hi Mike,

The Super Cub is also made of Depron (Tail surfaces, under fuse cooling vent cover, etc) which melts when painted with solvent type paints. Always try out in a small area first. Inside the fuse or behind the cowl is a good test place for new paints.
...Hmmm, maybe I'd better look for the Krylon H2o or go to the LHS for the Testor's...
What I have in mind is a (yellow) paint job for the HZSCub. Hopefully, by keeping the paint thickness to a minimum, the flight characteristics will remain much the same.

Best wishes & thanks for the reply,
-Mike
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