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Gelcoat or PU coating on composite?

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Birdman100

Well-Known Member
Joined
Jun 12, 2013
Messages
807
Location
Novi Sad, Vojvodina
It seem that Polyurethane paints and lacquers are becoming more frequent choice for composite surfaces instead of gelcoats.

Am I right about that and what do you think is the reason? Surface quality? Weather (UV) resistance? Weight? Processing? Cost? Other?

As far as I know there was a lot of Polyester gelcoats use, especially in gliders, but why there is absence of epoxy gelcoat applications?

I know that gelcoats are heavy (typical about 500g/m2), but they can be still applied as a thinner coatings...
 
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