finishing mix

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Forum topic by Tom515 posted 03-14-2016 12:39 AM 632 views 0 times favorited 4 replies Add to Favorites Watch
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2 posts in 2373 days

03-14-2016 12:39 AM

What is the benefits or advantage to mixing equal parts of BLO ,Polyurathane and Mineral spirits? It was mentioned as a good finish for bandsaw boxes

4 replies so far

View CharlieM1958's profile


16274 posts in 4213 days

#1 posted 03-14-2016 12:46 AM

I’m assuming that is a formula for a wipe-on finish. Usually, taking standard poly and mixing it 50/50 with mineral spirits will just give you thinner poly so it wipes on easily. I’m guessing the addition of BLO is meant to enhance the grain. I often use BLO by itself as a first step for that purpose, but I’ve never tried mixing it in with wipe-on poly.

-- Charlie M. "Woodworking - patience = firewood"

View Fred Hargis's profile

Fred Hargis

4983 posts in 2488 days

#2 posted 03-14-2016 11:46 AM

It’s commonly called “danish oil” and is a nice finish for something that doesn’t need a lot of durability. You get everything in one application with it, the MS thins it for smooth wiping and penetration, the BLO adds color, and the varnish adds just a smidge of protection (at least that’s how I see it). You can go overboard with too many applications of it, the BLO will get too thick to cure out and get gummy. Then there’s the opinion (of someone named Michael Dresner and others) that the varnish by itself will do the same grain/color effects of the BLO…so that part might not even be needed. I’m not totally there, and use danish oil; but not all the often. You can vary the components to get different effects (more BLO for a softer finish, etc.) but I’m not so critical I can tell the difference. There are commercial variatiosn of it available. Watco danish oil is one, though they seem to change between just wiping varnish (no BLO) and danish oil every great once in a while, Min wax Tung Oil is another. Here's an interesting piece by Flexnor on them.

-- Our village hasn't lost it's idiot, he was elected to congress.

View bondogaposis's profile


4723 posts in 2346 days

#3 posted 03-14-2016 12:11 PM

The advantage is that if you have the ingredients on hand you don’t have to buy a separate product called Danish oil. I seem to almost always have those ingredients on hand. Also you can vary the mix For the first two coats I go with a 1/3- 1/3- 1/3 mix. Then I add a little more poly for the top coats.

-- Bondo Gaposis

View OSU55's profile


1666 posts in 1985 days

#4 posted 03-14-2016 12:18 PM

I havent found any benefit in using blo. 50/50 poly or other varnish and ms pops the grain as well, dries faster, and is a harder finish.

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