Reply by James E McIntyre

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Posted on Boiled Linseed Oil and Polyurethane

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James E McIntyre

923 posts in 2177 days

#1 posted 05-31-2020 09:18 PM

Monkey man. There’s a lot of good advice in the comments here.

I have put poly over BLO many times.

BLO can take over a week to cure enough to paint over it, depending on humidity and temperature.

The drying Of BLO consists of physical and chemical stages, the latter denotes as curing.
I do the smell test. If I can hardly smell the BLO its most likely dry.

If you put poly over wet BLO it will blind with the poly and it may cause small lumps in the finish which you can sand off.

-- James E McIntyre

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