Linseed Oil & Deft

1/31/04, 5:48 PM #1

George Van
Guest

Linseed Oil & Deft

George Van

>Can Deft clear wood finish be applied over boiled linseed oil?

I have a couple of pieces I would like to apply the Deft to that are already treated with boiled linseed oil if they are compatable.

Thanks, George

Re: Linseed Oil & Deft

1/31/04, 8:51 PM #2

Russ Fairfield
Member
Offline
1,960 posts

Registered: 12/31/03

Yes, but.....

Russ Fairfield

>Even though they take great care to not identify it as such anywhere on the can or in their literature, Deft Clear Wood Finish is a nitrocellulose lacquer that is formulated for brush application. As such, it can be put over the Boiled Linseed Oil, or any other oil based finish, IF....

1. The oil finish is totally cured, and the first coat is applied with a brush, or

2. A barrier coat of shellac is put between the oil finish and the lacquer.

Whenever I have done this, I have NOT used the shellac, but put the Deft or other lacquer directly over the Oil finish. But, the oil finish has to be fully cured. This can be tested by buffing the surface of the finish with 0000-steel wool. If it comes off as a white powder that can be removed from the steel wool by slapping it on the edge of the workbench, it is cured. If it doesn't, it isn't.

After buffing the surface of the oil finish, the first coat of lacquer is brushed on and immediately wiped off until it is clean and dry. This allows the thinners in the lacquer to act as a surface cleaner to remove any of the remaining oils from the previous finish, and it primes and seals the oil finish. Subsequent lacquer coats can then be applied by either brush or spray.

Re: Linseed Oil & Deft

2/1/04, 3:02 AM #3

George Van
Guest

Re: Linseed Oil & Deft

George Van

>Thanks Russ,

I will get out some steel wool and give it the test!

George

Re: Linseed Oil & Deft

2/1/04, 5:18 AM #4

Joe Pack
Member
Offline
858 posts

Registered: 1/13/04

Would plain laquer thinner do the same?

Joe Pack

>

- - -

Officially retired on March 1, 2007 after 35 years as a teacher, class advisor, coach, athletic director and high school principal. I miss working with my students, but fishing and my feeble attempts at woodworking keep me busy. Plus, my sweetheart (still working full time...a "stay at home mom for a bunch of years, so a few more years before she earns any sort of retirement) "lets" me do laundry, cook most of the meals and do dishes anytime I get the urge. I am very good at buying tools and materials, but not quite so good at getting around to using them. Still, I have done a little bit of flat work, and am learning how to make toothpicks on my lathes. I have pretended to make a little bit of money by doing a few craft shows for the past 4 years, selling pens and other small turnings. I'm not getting rich, but, after several hundred kits, I'm getting the hang of long and round. Bowls are next, but I'm still learning. I don't pretend to do much of anything well enough to brag, but do most things well enough to not have to pay someone else too much to make it right. After working my way through school a good number of years ago as grunt labor on a summer carpentry crew, factory service guy, hardware store clerk, etc., I learned enough to pound every nail, run every wire and connect every pipe in the house I built. Heck, I even designed it myself...took my "blueprint" (a pencil sketch on an 8 1/2 x 11 piece of paper) in to show the lumber yard folks when I ordered materials! Jack of all trades, master of none is not just a saying, it is the truth in my case. I visit WC regularly, usually only reading, sometimes posting. I toss in my 2 cents worth when I know what I'm talking about. I toss in my 5 cents worth when I only think I know what I'm talking about. When I really try to impress people with what I think I know, I can start some really good arguments or completely make a fool of myself, or both. Visiting WC has usually been one of the higlights of my day for the last couple of years. I appreciate the folks here, and consider them my friends, even if I have only ever met two of them in person. I look forward to meeting many more down the road.

Re: Linseed Oil & Deft

2/1/04, 7:42 AM #5

Russ Fairfield
Member
Offline
1,960 posts

Registered: 12/31/03

Yes, but.....

Russ Fairfield

>If you used lacquer thinner by itself, there will always be a risk of not getting the surface thoroughly cleaned, contaminated by finger oils or perspiration, or any uncured oil rising to the surface before the first coat of lacquer can be applied. It only takes one little spot to ruin a good finish.

Using the lacquer is a one-step solution to cleaning the surface and putting a barrier coat over the oil at the same time. This reduces the risk of adhesion problems.

The best solution is to not put lacquer on top of an oil finish at all. That eliminates all risk of adhesion problems. Some folks claim that the oil has to be used on the bare wood to accent the grain. My experience is that the lacquer does a good enough job of accenting the grain by itself that the oil is unnecessary.

Re: Linseed Oil & Deft

2/1/04, 4:45 PM #6

Joe Pack
Member
Offline
858 posts

Registered: 1/13/04

Thanks Russ

Joe Pack

>

- - -

Officially retired on March 1, 2007 after 35 years as a teacher, class advisor, coach, athletic director and high school principal. I miss working with my students, but fishing and my feeble attempts at woodworking keep me busy. Plus, my sweetheart (still working full time...a "stay at home mom for a bunch of years, so a few more years before she earns any sort of retirement) "lets" me do laundry, cook most of the meals and do dishes anytime I get the urge. I am very good at buying tools and materials, but not quite so good at getting around to using them. Still, I have done a little bit of flat work, and am learning how to make toothpicks on my lathes. I have pretended to make a little bit of money by doing a few craft shows for the past 4 years, selling pens and other small turnings. I'm not getting rich, but, after several hundred kits, I'm getting the hang of long and round. Bowls are next, but I'm still learning. I don't pretend to do much of anything well enough to brag, but do most things well enough to not have to pay someone else too much to make it right. After working my way through school a good number of years ago as grunt labor on a summer carpentry crew, factory service guy, hardware store clerk, etc., I learned enough to pound every nail, run every wire and connect every pipe in the house I built. Heck, I even designed it myself...took my "blueprint" (a pencil sketch on an 8 1/2 x 11 piece of paper) in to show the lumber yard folks when I ordered materials! Jack of all trades, master of none is not just a saying, it is the truth in my case. I visit WC regularly, usually only reading, sometimes posting. I toss in my 2 cents worth when I know what I'm talking about. I toss in my 5 cents worth when I only think I know what I'm talking about. When I really try to impress people with what I think I know, I can start some really good arguments or completely make a fool of myself, or both. Visiting WC has usually been one of the higlights of my day for the last couple of years. I appreciate the folks here, and consider them my friends, even if I have only ever met two of them in person. I look forward to meeting many more down the road.

Linseed Oil & Deft

Posts