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Boiled Linseed Oil and Polyurethane

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Forum topic by monkeyman83 posted 07-26-2016 05:22 PM 1038 views 1 time favorited 18 replies Add to Favorites Watch
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monkeyman83

26 posts in 1704 days


07-26-2016 05:22 PM

Topic tags/keywords: question finishing

I have a question for anyone who can answer it out there. I love using boiled linseed oil as it really enriches the color of the wood in my opinion. My question is, though, is can I apply polyurethane over the top of boiled linseed oil? Thanks for the help.

-- It may not be pretty...but it's functional.


18 replies so far

View Kirk650's profile

Kirk650

291 posts in 211 days


#1 posted 07-26-2016 05:57 PM

I’d be more inclined to pop the grain with Minwax Antique Oil or Watco Danish Oil, rather than BLO.

View joey502's profile

joey502

487 posts in 981 days


#2 posted 07-26-2016 06:01 PM

I have used that finish, boiled linseed oil underneath oil based polyurethane, many times without issue. I usually thin the polyurethane 50/50 with mineral spirits. I have never had an issue

View TheTurtleCarpenter's profile

TheTurtleCarpenter

824 posts in 529 days


#3 posted 07-26-2016 06:23 PM

Yes; The base to oil finishes is BLO, it is a binder for solids and pigments and creates flow. Polyurethanes and varnishes have Blo in them to dilute and make the finish flow out. Finishes also have thinners, (carriers) to reduce and extend drying times as in regular poly and quick drying polys.
You can change the way stains take by thinning Blo down and applying before staining. If you are unsure always do some test peices first.

-- "Tying shoelaces was way harder than learning to Whistle",,,,,member MWTCA area K. Kentucky

View Jon Hobbs's profile

Jon Hobbs

52 posts in 167 days


#4 posted 07-26-2016 06:25 PM

Here’s a finish that I learned from a guy with 50 years professional experience:

Wipe/rub on the boiled linseed oil
Immediately wipe on dewaxed shellac

The oil will do its enriching thing that it does so well. The shellac dries the oil almost immediately and adds a tiny bit of toughness. Quick, easy, almost foolproof.

I’ve followed up with several coats of Minwax wipe-on poly with good effect on surfaces that are high wear (e.g. table tops). I hit surfaces that don’t see much wear and tear with some furniture wax.

-- Jon -- Just a Minnesota kid hanging out in Kansas

View Fred Hargis's profile

Fred Hargis

3937 posts in 1956 days


#5 posted 07-26-2016 06:35 PM

If you let the BLO set up enough, there won’t be any problem. That should take at least a day, and maybe more.

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

View Bill White's profile

Bill White

4452 posts in 3423 days


#6 posted 07-26-2016 06:58 PM

Once you get past MinWax products, you’ll have better results.
Bill

-- bill@magraphics.us

View jwmalone's profile

jwmalone

769 posts in 165 days


#7 posted 07-26-2016 07:03 PM

I use that technique fairly often works well.

-- "Boy you could get more work done it you quit flapping your pie hole" Grandpa

View TMGStudioFurniture's profile

TMGStudioFurniture

55 posts in 282 days


#8 posted 07-26-2016 08:10 PM

I’m pretty sure Watco Danish Oil is exactly that, a blend of BLO and polyurethane.

-- https://www.etsy.com/shop/TMGStudioFurniture

View OSU55's profile

OSU55

1056 posts in 1452 days


#9 posted 07-27-2016 01:13 AM

Yes you can but there really isn’t a need for blo. Here is some info on oils and varnishes. I find MW poly works just fine. Tested others, don’t see a discernible difference. I actually like it better than the non poly varnish Sherwin Williams has.

View Mojo1's profile

Mojo1

250 posts in 2153 days


#10 posted 07-27-2016 11:16 AM



Once you get past MinWax products, you ll have better results.
Bill

- Bill White


Can you elaborate on this?

View tomsteve's profile

tomsteve

394 posts in 682 days


#11 posted 07-27-2016 01:58 PM

BLO thinned about 25% with mineral spirits, let dry for aday or 2, the topcoated with poly is one of my favorites and great results even with minwax poly.

View OggieOglethorpe's profile

OggieOglethorpe

1211 posts in 1573 days


#12 posted 07-27-2016 03:22 PM

Here’s a finish that I learned from a guy with 50 years professional experience:

Wipe/rub on the boiled linseed oil
Immediately wipe on dewaxed shellac

I do similar, all in one step, mixing 33% each of BLO, Sealcoat, and Pine Turpentine. Do NOT substitute paint thinner, “turps”, or any other similar solvent.

Keep it in a squeeze bottle and keep shaking to keep it mixed. Wipe it on, wipe it off, move on in just a few hours with solvent or oil clears.

I also use this under water based finishes on certain woods with fantastic results, letting it dry over night.

View Jim Finn's profile

Jim Finn

2409 posts in 2385 days


#13 posted 07-28-2016 12:55 AM



Yes you can but there really isn t a need for blo. Here is some info on oils and varnishes. I find MW poly works just fine. Tested others, don t see a discernible difference. I actually like it better than the non poly varnish Sherwin Williams has.

- OSU55

OSU55 Thanks for that link. I learned a lot about wipe on finishes there.

-- "You may have your PHD but I have my GED and my DD 214"

View ChefHDAN's profile

ChefHDAN

808 posts in 2312 days


#14 posted 07-28-2016 08:59 PM

I’ve also had success with WB poly over BLO, usually give the piece 3 or 4 days to dry well then use my HF HVLP gun to shoot light coats, then once the poly cures a light rub with 0000 SW and a coat of johnsons paste wax. It’s a good looking finsh that stands up to having kids, especially girls and the dammned nail polish

-- I've decided 1 mistake is really 2 opportunities to learn.. learn how to fix it... and learn how to not repeat it

View blackcherry's profile

blackcherry

3313 posts in 3286 days


#15 posted 07-29-2016 12:42 AM

Here my favorite hand rub finish
1/3 blo
1/3 wood filler
1/3 fast drying varnish
Mix ingredients to a paste consistency
Apply with terry cloth , let set than buff off.

Any one hear of Harding furniture it one of their case good finishes.
This finish has a satin soft look and very smooth to the touch.
Let’s keep it our secret, cat out the bag, haha.

showing 1 through 15 of 18 replies

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