I've read that if you apply each successive coat between 12 and 36 hours, the epoxy will chemically bond with the previous layer, and blush is not a problem. If a layer is allowed to completely cure, the next layer can only bond mechanically (still strong, but definitely not as good), and blush becomes a consern, and must be washed off completely. Just do a layer a day and it should work out great. If you have any doubts, email or call Raka. From what I've heard, they are great with technical advice.

Jeff

: It's time to 'glass the hull, but I have a few quick questions for you folks:
: 1) I plan on precoating. Once I have done that, can I apply the glass when
: the epoxy is "leather hard" without sanding?

: 2) With RAKA, anyone experience blush? I'll be using a mixture of the 606 and
: 610 harderners (probably 50-50) with the 127 resin.

: Thanks for any help.