Hope all is well in the community. I’ve shaped my first board (PU) and glassed both sides (MEKP). I didn’t have enough sanding resin to do a hot coat so I put the board away for a couple of weeks. When I took it out of the racks yesterday, I noticed three significant yellow spots, almost like burn marks, on the deck. They weren’t there after the initial glassing.
I stored the board upright, nowhere near a heat source. In looking though the archived discussions, past theories for yellowing have been poor gloves and/or a bleeding squeegie. I used the cheap but non-colored disposables and I’ve had the squeegie for years with no prior issues. Besides, I think if either of these were the culprit the spots wouldn’t be so randomly placed on the deck (3 spots in all).
I’ve attached a few pictures in hopes you can advise. I have a high tolerance for cosmetic issues as this is my first board but I’d like to be able to avoid this in the future (and am still perplexed why the spots weren’t there 2 wks ago). Also any thoughts on covering them up? White pigment? Pre- or post-hot coat?
Those are catalyst burns . Probably had some left on your gloves then you laid down the lam. Dip your hands in acetone before going to wet out this will eliminate this from happening. Or your bucket was not fully mixed . See it on occasion in the shop.
print out your photos and sketch around and over them with a dark pencil…I think they potentially look like waves or a surfer on a wave if you try hard enough… use your imagination… it’s accidental art. if you like your sketches, hot coat the board and sand it…outline the yellow spots with dark paint pen lines… seal it or gloss over… in other words run with it.
or you could cover them up with printed logos or a fabric inlay, maybe… or just leave them there and you’ll have something to talk about in between sets (oh yeah I MEANT to do that on the deck… it’s so nobody steals my board…)
