Found this on the interweb this morning. I think I'll test it out on some scrap and see what's what.
Also - TO goes on very thin, but even so I'm beginning to think that a light coat of shellac on the TOP would prevent any penetrating effect of the oil, if there is any, for those that are obsessed with that possibility.
Here's the web post:
5.0 out of 5 stars Great product ! December 22, 2011
By Old-Duckman
Did gunsmithing years ago for about 5 years full time. Did plenty of stock and grip finishing. Tru-oil in the spray can WAS around then, this is not a new way to use Tru-Oil.
I would work up a pore-filled finish one of two ways. Use either liquid Tru-Oil applied by hand or often thinned with lacquer thinner and sprayed on with an air brush. Or, brush on Min-Wax urethane (using the cheap foam "brushes"). I would build up my finish, sanding between coats until all pores were filled. I would then use the spray can form of Tru-Oil to get a nice, smooth, high gloss finish. Several coats of this (with 4-0 steel wool between coats and mineral spirits wipe down before respraying) then letting the finish cure good for a couple of days in a light bulb heated drying box.
You will have dust in the finish no matter how careful you are so wet sanding that out with 2000 grit paper and hand rubbing with polishing compounds will give you a nice, glossy oil finish. I prefer a less glossy finish than Tru-Oil gives straight out of the can so I usually did my wet sanding and then applied Dem-Bart Checkering oil by hand. Several very light coats of this super thin oil makes for a truly beautiful finish over the Tru-Oil base.
Recently made a pair of handgun grips for a friend from work and LUCKILY still had unopened cans of liquid Tru-Oil and spray Tru-Oil and a bottle of Dem-Bart Checkering oil. All three were in great shape when opened (30 year shelf life !! Of course they were unopened until a few days ago). Products worked great as detailed above but wanted to make sure that they were still available.....Glad to see that all three still are. This project made me want do some more grips and I was delighted to see that my favorite finishing products were still all available.
Another method using spray-on TO
Moderator: Dave Bagwill
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The purpose of this forum site is to provide a means for acoustic guitar makers at all skill levels to forward information, share experience and ask questions if project obstacles are encountered. We ask that egos be left at the door – the highest levels of courtesy and respect are to be shown to all. Posts containing disparaging comments will be removed. The “Acoustic Guitar Construction Forum” is owned by Kenneth Michael Guitars and is copy protected. Direct links to luthier suppliers are not permitted and will be edited.
The purpose of this forum site is to provide a means for acoustic guitar makers at all skill levels to forward information, share experience and ask questions if project obstacles are encountered. We ask that egos be left at the door – the highest levels of courtesy and respect are to be shown to all. Posts containing disparaging comments will be removed. The “Acoustic Guitar Construction Forum” is owned by Kenneth Michael Guitars and is copy protected. Direct links to luthier suppliers are not permitted and will be edited.
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Dave Bagwill
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Another method using spray-on TO
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Dave Bagwill
- Posts: 5955
- Joined: Tue Dec 13, 2011 7:44 pm
Re: Another method using spray-on TO
I contacted Sandy Ellertson at Birchwood-Casey about the aerosol and got some disheartening information:
Dear David,
Thank you for your note.
The aerosol version of the Tru-Oil contains 25-30% Tru-Oil at best. It is a very thin version due to the propellant and required thinning to get the Tru-Oil in an aerosol form.
The results have been mixed with the aerosol test first. If you have been getting desired results with the regular liquid it may be best to stay with it.
Reformation on the aerosol was required recently and the results are not where we currently want them.
If you have any additional questions, feel free to contact me.
Thank you,
Sandy Ellertson | Birchwood Casey
Customer Service | Sporting Goods
Dear David,
Thank you for your note.
The aerosol version of the Tru-Oil contains 25-30% Tru-Oil at best. It is a very thin version due to the propellant and required thinning to get the Tru-Oil in an aerosol form.
The results have been mixed with the aerosol test first. If you have been getting desired results with the regular liquid it may be best to stay with it.
Reformation on the aerosol was required recently and the results are not where we currently want them.
If you have any additional questions, feel free to contact me.
Thank you,
Sandy Ellertson | Birchwood Casey
Customer Service | Sporting Goods
-Under permanent construction