Doe to low temp during cure I had pretty bad amount of blush in the surface. I wet sanded it in cool and the blush didn't bother a lot. I guess it depends on the sanding paper. You could also wipe the surface with ethanol or acetone. Or wash it with soap.

: I rolled on a couple of coats of epoxy last weekend and went to sand last
: night after scrubbing down with water as usual. One side of the hull went
: fine using 100 grit in the ROS but the other side is gunging up the paper
: big style. Tried hand sanding with 80 grit but just seems to be spreading
: the blush? all over the place. Tried washing again etc but doesen't seem
: to help - would sanding with wet and dry help or any suggestions?
: thanks
: Pat