Just scrape off as much as you can just scrape off as much as you can and
wash down a couple of times with acetone. You didn't say what kind of wood
you are working with. Unless it is extremely open pored the acetone will
draw out most of the uncured resin. If you are worried about the bond
planing off just a hair will get the rest. It would probably be a good idea
to wrap the shaped rudder with some 2 oz glass.

--
Glenn Ashmore

I'm building a 45' cutter in strip/composite. Watch my progress (or lack
there of) at: http://www.rutuonline.com
Shameless Commercial Division: http://www.spade-anchor-us.com