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Re: Gel Coat Repair Flop (Pics)
I guess that you saw the same webinar that I got with my course re., mixing the colors on the hull.
Yes, the gel coat will not set up without hardener in it (MEK).
Get a fully pigmented white gelcoat, scrape or sand those spots again and try again. No one will see the difference in shade from more than 20' away. What you are trying to do is to protect the fiberglass laminate below from more damage and keep your hull sound. Over (much) time the white gelcoat will weather as well; I can still see my original 'patches' up close but from a distance it is all a blur (puts on his glasses).
Are scrapes in the hull (that don't break through the gel coat entirely) potentially harmful? I have very few scratches that break the gel coat and those were the ones that seemingly needed a little more color to be fully covered. Maybe the partially transparent gel coat will be perfect for the finer scratches that just need to be faired? Transparency sure makes color matching easier
1975 27' O'Day "Ice Breaker"
Heart is in Maine
Boat is in Rhode Island