How do I take the "sticky" out of BLO? - Woodworking Talk - Woodworkers Forum
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post #1 of 5 Old 08-02-2012, 07:20 PM Thread Starter
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How do I take the "sticky" out of BLO?

My dad build a playhouse for the grandkids, and some guy at the box store told him to put BLO on the porch slats and balcony. He applied it months ago and they're still sticky.

I'm wondering what options I have to help him. I'm considering a 3lb cut of Shellac... will that seal off the BLO?

If not, what else can he try.
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post #2 of 5 Old 08-02-2012, 07:22 PM
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Putting anything over top of something that is not dried us a recipe for a mess.

That bowl was perfect right up until that last cut...
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post #3 of 5 Old 08-02-2012, 11:14 PM
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if its been that long it may have been raw linseed oil rather than boiled. Raw linseed oil takes forever to dry. I would wipe the wood down with some mineral spirits to wipe off any surface oil. then seal it with unwaxed shellac, but not 3 lbs cut. I would use seal coat. Remember, though, that shellac is not good for exterior use, so after sealing you will need to put on some exterior finish.
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post #4 of 5 Old 08-03-2012, 12:35 AM Thread Starter
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While I'm 90% sure it was BLO (and I've heard from at least on reputable woodworker that BLO takes forever to dry too) it may have been just linseed oil. Either way, I'll try and wipe it down with some MS. I've got a quart of seal coat and will run a test on it. Thanks!
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post #5 of 5 Old 08-03-2012, 12:47 AM
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I would wash the excess off with lacquer thinner and wait and see if dries. If it's exterior and you want a clear finish on it I would then finish it with a spar varnish.
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