Thread: Urethane Paint
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Old November 16th 15, 03:01 PM posted to rec.aviation.soaring
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Default Urethane Paint


Thanks for your response.


I used to work in the paint shop at schempp-hirth.

the two processes are different.

What they do for paint is this: they apply a thin layer of molding gelcoat to the molds. it provides excellent adhesion to the composites, and releases from the mold nicely. when the fuse/wing/whatever is pulled from the mold, the thin layer of molding gel-coat is scuffed with sandpaper. at that point they then spray urethane primer, wetsand it, then do a PU topcoat, wetsand it. then its ready for trim stripes/ decals and polishing. after any striping, they also offer clearcoat to remove the lip edge of any decals/contest letters et cetera. but that's only applied in the local area of the decal.

With gelcoat, after the mold they just spray gelcoat onto the scuffed molding gelcoat.


Good to know...thanks ND.