Thickening Polyester with Silica question

[shep65]

Hi guys I have a question ..How bad did I screw up if I mixed silica and resin before adding the MEKP ? Its been 3 hours and doesn't seem to be hardening like previous batches that were mixed with hardener before mixing in the Silica .

I'm rebuilding a transom and using the thickened resin to glue in my core . I mixed 3 quart cups with Silica but did not add the MEKP until I was ready to use . Hope I didn't just screw up