: How long doe it take MAS with fast hardener to cure before you can
: sand and varnish? Thanks.-Greg

With any resin I'd want to wait at least a week. And with a fast hardener you'll often get blush, regardless of what the resin company says so always scrub with soap and water first. Takes at least a month for a full cure. The fast hardener really effects the initial cure, not the final cure times.

Bill H.