Reply by OSU55

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Posted on Varnish and rubbing out

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2658 posts in 2848 days

#1 posted 07-29-2016 02:15 AM

You may be allowing ample “dry” time, but 1 week or 2 weeks is not enough “cure” time for OB varnish, not with enough film thickness to get a “piano” gloss finish. 30 days minimum in a hot garage will do nicely. The less time it’s allowed to cure, the more likely the grain will telegraph through after a few months. Let it dry a few days and do a “rough” sanding with ~400, if all looks good, set it aside for another 3 weeks or so, then finish out.

I much prefer spraying WB finish when doing a fully filled finish. With the poly I use, additional coats burn in for 24 hrs after the 1st coat, so no knit lines to worry about. The WB lacquer will burn in anytime, just like solvent lacquer.

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