I am finishing a countertop in Waterlox (Gloss regular varnish). I wiped on a few coats (thinned with MS) and then laid on a brushed coat.
About 10 mins into the drying I noticed some tiny spots where the varnish didn't flow; I should have thinned it a little bit more. Foolishly, I took my brush (which was by then hanging in mineral spirits), brushed it dry on a rag, and then backbrushed the problem areas.
Unfortunately, this resulted in uneven leveling. There are 'sag' marks now in parts of the finish.
My goal was to use a brushed coat to fill the pores; and then to wipe on the final coats; I'm not looking for a highly built up finish.
What's the best fix for this? (My idea is to wait a week and sand with 320, then wipe on a final couple more coats)
Will a few subsequent wiped on coats of varnish hide any witness lines caused by aggressive sanding?