Genuine Oil by Birchwood Casey

It's a mix of Tung oil and Naphtha, so it's a pretty straightforward process - you can read the SDS here:
Genuine Oil SDS
If this is your first finishing project then go slow and take your time - don't rush things up.

If you want a satin finish with Tru oil, just rub with 0000 steel wool after the final coat dries. But it would still be a varnished finish on the wood...
 
It's a mix of Tung oil and Naphtha, so it's a pretty straightforward process - you can read the SDS here:
Genuine Oil SDS
If this is your first finishing project then go slow and take your time - don't rush things up.

If you want a satin finish with Tru oil, just rub with 0000 steel wool after the final coat dries. But it would still be a varnished finish on the wood...
This is exactly what I do when I refinish my stocks. I use Tru-oil and then knock off the sheen with steel wool. I would think using Genuine oil would be the basic same procedure - coat evenly and let dry.
 
Looks like Birchwood Casey has been bought by a larger company, GSM Outdoors. I called their tech line and left a message (no one was picking up), also emailed them, looking for instructions for their new Genuine Oil.

I spend so much time inletting and sanding the stock, I don't want to screw it up by using a product w/out instructions or other user experience. Esp with the findings of Mizar and GBExpat, i.e. it might be tung oil, but ... looks modified.

P.S. I hope the new owner of Birchwood (GSM Outdoors) doesn't screw up a product line with a good history. I've been using BC stuff for years...
 
That information is in the link to the SDS that I posted, guys... They added naphtha to thin it down, so it can penetrate into the wood better. Like GBExpat said, work with it the way you do with linseed oil.
 
Thanks all, it looks like Genuine Oil is tung oil based, unlike True Oil which is linseed oil based, so if the bottle doesn't have instructions, I'll just treat it like tung oil and that should put me on the right path.
 
Yeah, there are a number of products that are named "Tung Oil Finish" (among other things) that are fundamentally light varnishes.

I have come across a surprising number of folks over the years that want to argue when I point out that those produce a hard-shell varnish finish rather than a real oil finish.

Just another case of "You can lead a horse to water .... " ;)
 
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sign216, you are familiar working with both Tung & Linseed, yes?

No, I'm not a woodworker at all, and this is my first stock. So ... I'm open to guidance.

The stock is a Mannlicher style Amer. walnut, shaped and 90-95% inletted by US Gun Inletting of Marysville, Ca. ( http://gunstockinletting.com/index.html )
It's for a CZ 527 in 7.62 Russian. A micro-Mauser bolt action, that I bought w a damaged stock. US Gun Inletting has been great, swiftly answering all my questions, and doing a true 90-95% inlet on it.

Joe
 
You can get tons of guides/write-ups/opinions on treating walnut stocks over on the CMP Garand forums--
like days of reading! :oops:
 
I quit messing around years ago with rub on finishes and went to Min-Wax rattle can poly varnish. Build your finish with clear gloss to avoid a foggy finish. Use steel wool to remove the gloss between each coat and for the final coat use clear gloss, semi-gloss, or matte, your preference. Quick, easy, and very durable.

There is another easy way using lacquer, the hardest finish available. Thin the lacquer and apply mist coats with a cheap air brush. I use a Harbor Freight brush, 15 bucks when i purchased it. Lacquer has the ability to absorb each following coat with no sanding. If you get carried away and get a run it is easily sanded out but if you stick to misting you won't have to worry about a run. The finish coat will be dull but can be rubbed into a gloss finish with ordinary rubbing compound if desired. Another plus is if you ding the stock you just sand the ding out, feather edging it, and refinish it with the mist coat process and the repair can't be seen.
 
Nothing against Birthwood Casey, but I started using ChemPac years ago and have not looked back. I called the product producer who was a stock refinished himself, and after a 15 minute discussion, I bought a case of gloss and of satin. The company provides aerosol packaging and that got them into firearms finishes. Brownell’s carries it. They don’t appear to offer gloss anymore. I would think you could polish up the satin should you want.

Sounds pretty similar to Min-Wax. Water just beads and rolls off stocks finished with this. I also have a couple of bottles of their liquid finish, but it doesn’t get used near as much.


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My order of Genuine Oil arrived, and instructions are printed on the back (see attachment). The instructions differ from Tru-Oil, in that they want sanding to 600 grit. Tru-Oil only asked for 280 or 400 grit. Other than that the instructions are similar.

One part that is unclear is on 4., where it seems that they want you to do only one side of the stock at a time. I've heard of that before on finishing, but Birchwood's instructions are poorly written as to whether that's what they really want. Any ideas?
 

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My order of Genuine Oil arrived, and instructions are printed on the back (see attachment). The instructions differ from Tru-Oil, in that they want sanding to 600 grit. Tru-Oil only asked for 280 or 400 grit. Other than that the instructions are similar.

One part that is unclear is on 4., where it seems that they want you to do only one side of the stock at a time. I've heard of that before on finishing, but Birchwood's instructions are poorly written as to whether that's what they really want. Any ideas?

Never heard of that especially with the drying time. I’ve used a bunch of tung oil on shotgun stocks, and I use a small amount to a cover a small sections of the stock and rub it in until it‘s nearly absorbed and gets a bit sticky. I then move to an adjacent section and start again overlapping a bit. When you overlap, it in essence starts the process over. Once the stock is covered this way, I hang it.

The number is there. Call ‘em.
 
NMexJIM,
Thanks for your tung oil experience. I did call Birchwood previously. No one picked up, but I left a mssg. I also emailed them. No reply to the email, but they did call back later in the day (but I couldn't pick up). I guess I'll call again, tomorrow, although I'd rather hear real-world experience from users. Don't have faith in the quality/experience of their telephone screeners.
 

Here’s Andrew Wertenburger w/ Caesar Guerini. I’ve emailed back and forth with him about their shotgun stocks because a bunch of clays shooters were getting dulled finish due to sunscreen. Watch him. It’s easy.
 
yes, but the application is the same, And, while I like tung better, linseed can be used interchangeably. In fact, I’ve used warm linseed the get better penetration In early stages. Same with tung.

Carefully read the part about sanding using the oil as a wetting agent to fill the grain. This is early stage and important if you want a level finish that is not “potted” with unfilled grain.

These will be heavier coats that are allowed to dry hard. Wet sand until the finish appears to be gone. You should get a little slurry. This is what will fill the grain. Rub slurry into wood. Do not use steel wool, it will pull the finish out of the wood pores. Use a small block of wood to wrap the sandpaper around, Recoat, sand very lightly to provide grip for the next coat. Do this until the wood surface is filled And level.

Fir finish maintenance, Andrew took one finger and rubbed down the entire butt stock, What you want to avoid is heavy swirls that are left to dry. Those would have to be smoothed with 600 grit. Rub, rub, rub in until all you’re seeing are really thin swirls - more like smears.. Take your palm and get the swirls/smears smoothed out in line with the grain. Dry. Do again. This may take multiple thin coats.

You cannot screw this up. You may have to rework with sandpaper, but that is just more work - not disaste. 600 grit is your friend (I have grits to 1,000 as well as micro grits which are barely sandpaper) 600: 800 will do you to correct places you don’t like. Avoid steel wool until you’re doing touch up down the road.

If you allow the final stages of oil to dry too hard and oil doesn’t seem to spread right, use the finest grade of steel wool you can find. Wet it with finish and, very lightly, “break” the surface so the next coat you rub in will grab ahold.

Good luck. Been where you are, glad I’m passed that stage. When you get done, finishes will easier for you.
 
NMexJim,
Thank you for the instructions. That's just what I need, being new to this. I wasn't planning on doing the wet sand/slurry step, in the interest of "getting things done." Perhaps I was hasty in that thought. I'll do some research on unfilled grain vs filled grain.

Joe
 
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