I would also point out that most modern finishes, like Permalyn which is plastic, look like modern finishes on the finished gun and usually do not stand up all that well since and are made for furniture not gunstocks. Anything that is hard enough to be "waterproof" will eventually fail on the wood.
Out in the rain? Use a warmed medium bodied oil with some resins added. Soak it into ALL the end grain and inlets . Wipe off the excess.
A seal coat with real shellac thinned to penetrate well, inside and out, is said to work well.
AND if you thin an REAL oil finish that is not already loaded with mineral spirits for goodness sake use real turpentine and don't over do it.
The archives have a number of threads on finishes.
Some even tell how to make the base "boiled" LS oil for an oil varnish in shop and may even speak to adding the resins to complete the job.
Gunsmiths did not use the same finishes as musical instruments or furniture makers though. Cost too much and were less durable.
Dan
Pulled this from an earlier thread regarding permalyn
Rick schreiber wrote:
I’d like to add some more comments to the discussion about Laurel Mountain Forge’s Permalyn finish. First of all a little history..I’m Rick Schreiber, the owner and founder of Laurel Mountain Forge. While I do monitor a number of gunsmithing web sites I normally don’t respond. This time I do need to set the record straight. First of all Permalyn was never developed at the request of John Bivins. It was developed by me a number of years before I ever had a chance to meet John. John had heard of me and had a chance to use some of our products. He was impressed enough with the quality, that he started using our stains, finishes and browning solution on most of the rifles he was producing. Over the years we became friends and it was at this time that he decided he would like to try marketing our Permalyn Sealer and Permalyn Gunstock Finish under his own brand. Laurel Mountain Forge supplied John Bivins’ company with Permalyn Finish and Sealer in bulk, as well as a custom Antique Wood Stain, which he then re-branded. John did quite well with the sales for some time, but for various reasons, John decided it was becoming too much for him to handle, so he then transferred the finish and stain business to Lowell Manley Shooting Supplies in Michigan. Lowell continued to sell our rebranded products until he passed on.
There seems to be a lot of discussion about what is a traditional finish and what is not. My question is why does it matter? Are we using traditional barrel steels? I certainly hope not. What about the spring steel alloys. For those of shooting flintlocks what about tool steel frizzens as opposed to case hardening. Most of the antiques we see today do not have their original finish and certainly not the original color. What we enjoy looking at is the product of 200 years of waxing, refinishing and general wear and tear. I would hazard to guess that if any of us saw a rifle fresh out of an 18th century gunshop, we would not be too impressed with the finish or the color.
All that being said, Permalyn is certainly based on modern technology. When I developed it, I was striving for a finish that was durable, easy to apply and had the appearance of what I thought a good stock finish should look like. If it didn’t meet these goals, I would have developed something else.
There was a statement that Permalyn was a plastic finish. I am not sure what that means. Permaly is no more a plastic than cured linseed oil, or a spar varnish is. They all will dry hard and glossy and can not be re-dissolved when cured. Also Laurel Mountain Forge’s Permalyn does not have any of the Eastman chemical Permayn ester resins in its formulation. Similar names, but not similar products.
I’m off my soap box now….I hope I haven’t offended anyone.
Rick