Hi everyone – thanks in advance for your guidance.
I’m almost done making my first-ever complete board – a 5’9’’ shortboard using RR epoxy, FCS II boxes. Some noob mistakes there but it’ll float and i’m really psyched. BUT…
i got a burn through (not just weave exposed – it’s all the way to foam) behind the back fin – it’s about quarter-sized, right over the stringer.
i can’t just paint a thin layer over the burn through (right?) because it’s all the way to the foam so i’ll need strength, and anyway if i do that it’ll just be a bump. sanding the bump flat will take me right back to the foam!
So, instead, i’m planning on mixing up, say, 1-2 ounces of resin, taping off the tail just like for a hot coat, then applying that resin just to the last 12-18 inches of the tail to build up some resin there behind the back fin box with a new layer. then try and gently re-sand.
question #1: i ran out of those shaped stickers you get with FCS II fin boxes – **can i just use regular old adhesive tape like this? (**http://www.foamez.com/3m-233-masking-tape-34-p-290.html) to cover up the boxes before applying resin?
question #2: and then pull the tape when the resin just begins to get tacky?
question #3: the reason i plan to pull the tape – i’m worried that if i leave the tape until the resin is hard and just sand the tape away, i’m going to be grinding the fin boxes too far down when my problem is, of course, that i’ve taken that tail down too far – if i grind the fin boxes down even more, that’s just going to create ground-down fin boxes below the level of the coat, which i have to leave higher so i don’t burn through.
hope this makes sense.
thank you for your advice!