Thanks for the comment and sorry to hear about your lapstrake, bummer!

It looks more like a bruise and the surface doesn't appear to be compromised.

Out of this small sampling, it sounds like Raka does this and West Systems and silver tip doesn't? Raka turns out to be too slow for me anyway...

OR could it be the sizing on the fiberglass not bonding well?

: For what it is worth. I have used System Three Silvertip on two boats. One is
: a kayak that I have been paddling for three years. The other was a
: lapstrake (plywood S&G) canoe that was destroyed when a 30" diameter
: oak tree fell through it. I did not see any sign of expoxy shattering as
: you described.

: I hope this helps,
: John VB