I have always figured that orange peal was the result of the material you are applying now not "wetting" (bonding with) out the previous layer. If that is true then either there was blush still preventing wetting or the paint thinner left a layer of organic residue that prevented the bonding. I would suspect the latter. I think using a petroleum based material is risky. Alcohol or acetone maybe but I stick with water personally. Earl

: I sanded my hull down, cleaned with paint thinner and put a final coat of
: epoxy down. Applied with a brush, rolled it with a foam roller and then
: tipped it out with a brush. Looked great, for about 2 minutes. Then it
: took on an orange peel look! Anyone know what causes this?

: I used system 3 resin and fast hardner. I'm thinking it may have something to
: do with the fast hardner. I have not seen this with the slow.

: Dwight