I brushed on the first coat of varnish (Interlux Schooner) on my Wood Duck 10 and it now has all these spots. The enclosed, temperature controlled and thoroughly cleaned room was spotless as far as I could tell. I don’t think it is from dust. It is on both the sapele and the okoume. Everything was thoroughly sanded and wiped down with indentured alcholol. Any advice would be greatly appreciated. Thank you in advance.
Diane
I would guess it’s from bubbles that have popped. Sand it, put another thin coat on it and look for bubbles. You should be able to get them out by tipping with a brush.
A few questions. How many fill coats of epoxy did you use? Did you sand the fill coats smooth and with what grit paper? If you sanded the fill coats smooth why did you feel it was necessary to wipe it down with alcohol? Sanding will remove all/any amine blush if you have sanded thoroughly with 150 to 180 grit paper. Finally, how did you apply the varnish? Brush, roller, … It looks like you put a really thick coat on. Schooner varnish is intended to be applied in super thin coats.
I’ll chime in with this - did you stir the varnish gently before applying, or shake it up well? Shaking can induce bubbles to form. And to follow up on the thickness, sometimes varnish can use a little thinning or using a viscosity reducer specific for that brand.
1 Like