Looks like I’m going to have an epoxy blush removal issue before I can hot coat, weave fill, my recent laminate. I’ve seen scrub with soapy water, acetone, sanding, and scrubbing with a purple? scrubber pad as possible solutions, of those, acetone would be my pick for this job, does denatured alchohol work? what really works best? Thanks
A denatured alcohol wipe down followed by a stainless steel wire brush cup attached to your sander reportedly scuffs it up nicely for a good bond with the next coat. The stainless bristles get down between the weave texture without removing any cloth. A light touch reduces the risk of damaging the lamination.
Thanks JohnMellor, I’m concerned about damaging the threads in the weave, I’ll test the brush method today.
The epoxy I work with has water-soluble blush.
Not sure if thats the case with all epoxies, but the amine bloom on these ones is easily washed off.
Scotch brite and water, no soap/detergent needed.
I use a stiff bristle brush to get into the weave if necessary.
No point using solvents if you don’t need to!
I’d reccomend a quick phone call to your epoxy company’s technical department, they’ll tell you the prefered method for the brand you’re using.
And in my experience, get the guy/gal on the end of the phone talking, they let go so many little gems of info, glassing tricks, layup solutions etc… really experienced people usually.
Kit
Bad luck GTFD, best way to avoid that is to keep the temperature up and humidity down!
I concurr with KK, course scotchbrite pad with water, but I find that washing up liquid clears away the stickyness quicker.
Never had a problem since using RR with additive F!