: The blush layer of epoxy is thin enough, that sanding will loosen it up
: enough that washing off the dust will take the blush along with it.
: besides, how many good epoxys have blush? any surface coat should be
: perfectly blush free.

Blushing may vary depending on the type of epoxy (actually hardener). Many fast epoxies will blush. Others are created to minimize blush, i.e. RAKA 350. Also, as mentioned on the RAKA site, blushing is affected by environment, especially humidity, no matter what the epoxy brand or type.

On another topic, David, How are those kevlar ribs coming?

Bill