Swaylocks
Ive been workin on a 7’6" board for the last month with a glass on thruster fin system. Ive hot coated the bottom and top and have sanded the surface to 150 grit. I am getting ready to put on the gloss coat. I decided before the gloss coat to paint up the fins with black pigment in gloss resin to really set the fins off. I mixed about 4 oz of gloss resin to a pretty heavy dose of black pigment that i set off at 5 ccs. Its been two days since ive painted them and although they are dry, they have a slight stickiness to them. My qeustions are; 1) do i just need to let them set up more? 2)Do i need to rough them up with sandpaper to make my gloss coat adhere? My biggest fear is to put on my gloss coat and have the color run. Any input would be greatly appreciated.
Bob
Heavily pigmented resin needs a bit more cat to kick it, but should still set up fine given time.
Does the gloss resin you used come ready waxed? try wrapping the fins in cling film to cut the air off and leaving them over night.
If applying another layer of gloss over ther pigmented layer, you will need to key the surface with 120, go careful not to take off too much.
Don’t worry about bleeds, clear coat the fins and fin base, when you gloss the deck so the fins are pointing down as drips on the fin are easier to sand than pooled resin at the base. If you get any bleads you can sand them out before you gloss the bottom.
hope this helps
Hello Bob,
Using pigment in gloss will slow down the catalyic reaction. Even though it seemed like a lot of catalyst it might not have been enough. And if it was cold out (below 65 degrees) then it slows it down even further. If you give it time it should kick. If it’s old gloss and you didn’t shake it up then you were wax deficient, then it might not ever get hard. Best thing is to put wax paper on them (just like you were putting a big sticker on them), in a warm room…it should harded up.
The problem is going to be sanding out those fins. More than likely you have a black resin drip edge along the trailing edge of the fins, your going to have to sand that edge sharp or your fins will hum. I can smell the sand throughs.
-Jay
Woody Waverider,
Thanks for the response.Yes the gloss resin has wax aleardy added. Do you suggest when glossing the deck to put a cheater coat of resin on the fins? In doing so, i can put a final sanding on the fins before my final bottom gloss coat?
Jay,
Thanks for the tip about the trailing edge of the fin. Ill try the wax paper as suggested and go from there. Worst case I sand it all down a re apply the pigment again. Gone to far to fudge it now…
mudybech
That how I’ve always glossed or fill coated glass ons.
hotcoat and gloss resin have the addition of wax in solution, it rised to the surface and creates a film that cuts off the air and the resin sets hard, with out the wax you have lam resin that is still tacky to touch even when cured.
the wax paper or clingflim does the same it cuts the air off, and it should go hard, if not could be another problem.
The reason that you gloss the fins when you gloss the deck is that if you were to do them the other way gravity would cause excess ressin to pool and slab at the rin base. It is much easier to sand a few drips from the fin edge than it is to sand a big puggled of resin on the bottom, of the board.
The would act as a kind of cheater coat I guess and would mean that if it were to bleed it would not hit the deck, you could also tape off around the fin base for extra protection, when that resins cured youve sealed the pigment so it shouldn’t travle on to the deck.
Woody Waverider,
Thanks for the information as it makes alot more sense now. Im going to try taping off the fin base as suggested and glass them as discussed. Thanks again for the help.
Bob