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Any way to get a nice finish on a foam plane?

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Any way to get a nice finish on a foam plane?

Old 07-31-2004, 08:15 PM
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Default Any way to get a nice finish on a foam plane?

By nice finish I mean smooth and possibly gloss painted.

I have a GWS spitfire that went together ok, but it doesn't exactly look very pretty, the foam molding isn't perfect so there are a few small gaps, and as soon as there's a scratch on the painted finish the white foam shows through.

I am wondering if there's a way to create a thin but smooth skin on the plane by spraying it with something which can then be painted, or would this add too much weight?

I'm new to the ARTF scene and not yet sure how the balance between convenience and finish quality works.

thanks!
Old 08-01-2004, 01:09 AM
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crashingagain
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Default RE: Any way to get a nice finish on a foam plane?

Here are a few ways I"ve made my GWS planes perty.

1. Iron on covering after sanding and spaclking the foam. (Nice finish and incredible strength, but too much work)
2. Polycrylic brushed on over fiberglass cloth, then sand and paint. (Same as above + heavy)
3. Polycrylic on foam without cloth. ( nice finish but not durable)
4. Sand foam and paint with foam safe paint. ( Not durable, but easy to do, adds little weight, and looks nice)[img][/img]
The red formosa is a sanded and painted fuse with a covered wing
The green formosa is sanded, spackled, covered, and painted
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Old 08-01-2004, 07:02 AM
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Default RE: Any way to get a nice finish on a foam plane?

Thanks for the info, it's much appreciated.

What problems did the polycrylic on foam give in terms of durability? i.e did it just add no strength or did it cause problems with cracking/chipping?

thanks again
Old 08-01-2004, 03:00 PM
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crashingagain
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Default RE: Any way to get a nice finish on a foam plane?

Using the polycrylic without the cloth does give a smoother and harder surface, but doesnt give the added stiffness that covering or poly and cloth give.
Old 08-02-2004, 12:03 PM
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bgriff99
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Default RE: Any way to get a nice finish on a foam plane?

crashingagain, would self-adhesive covering be better than iron on?
Old 08-03-2004, 04:46 PM
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Default RE: Any way to get a nice finish on a foam plane?

The main thing I'm after is to try and form a hard skin on the surface of the foam. I fly a lot over tall grass/corn and on my stock gws spitfire, the leading edges of the wings espeicially are getting quite chipped from landing on this stuff. Although I can't complain too much, it's saved my plane from becoming foam peanuts a couple of times
Old 08-04-2004, 05:24 PM
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Default RE: Any way to get a nice finish on a foam plane?

I've been looking into the resins and think I'll go for polycrylic on glass cloth. What can I do to ensure I don't get problems with this warping the foam wings (And fuselage?!) as it dries? thanks!
Old 08-05-2004, 11:00 AM
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mhmitchell
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Default RE: Any way to get a nice finish on a foam plane?

Spackle SAND Spakle SAND try silkspan instaead of fiberglass apply with poly crylic. Very lightly sand then spray it !

I have stopped using the silkspan and just put on more layers of Polycrylic then paint. Sand lightly between coats.

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