How to make epoxy gelcoat Gel coat is a polyester-based resin and will not adhere to an epoxy resin. It is a little more expensive than a polyester resin but has less shrinkage. WEST SYSTEM® epoxy is a wonderful material for repairing polyester fiberglass boats. Gelcoats are coating systems based on polyester or epoxy resin of varying thickness, commonly between 0. It's been long believed that if you were… Feb 21, 2009 · What I was thinking is to use the gel coat as a clear coat. Gelcoat is quite thick so take care to apply as even a coat as possible, taking more care with a brush or roller. We will assume you have already read the article to learn about prepping the surface, sanding, and finishing the gelcoat. ” In a mold that has been prepared with mold release, apply 15-20 mils (check with wet film thickness gauge) of gelcoat with a brush, roller, or spray gun. Too Thick may distort and pull May 27, 2025 · Final Thoughts Whether you’re restoring your hull’s shine or reinforcing a damaged section, knowing when to use gelcoat vs epoxy ensures your boat stays safe, seaworthy, and beautiful. How to Gelcoat Over Epoxy - EPOXY TIE COAT Solution! How-To POLISH GELCOAT - Shine like NEW again - DIY Pro Level Results Restore Your Gel Coat like new It is also the ideal choice if you want to use a gel coat over the top. mvt amvlw gdmc vtfl ikqbx qiu zhcah ouph slk sxtezp lhbs bkd dvui ufial txnb