: There have been a couple of threads recently about the use of two part
: polyurethane varnish that provides a more scratch resistant finish.

: I have just applied a couple of coats of high gloss spar varnish, can I apply
: a coat or two of the 2 part poly on top or will that turn out badly?

: The poly I have is System 3 WR-LPU 2 part poly top coat clear glass.

: Thanks!

I'd check on the System 3 site, but I'm pretty sure that it is water basec and the spar varnish you've already applied is oil based. Generally a bad idea to mix the two on one surface.

Bill H.