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The Range
Military Surplus
Stock refinishing thread: BLO vs PTO vs Tung Oil Finish
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<blockquote data-quote="coolhandluke" data-source="post: 2911355" data-attributes="member: 13284"><p>[USER=24925]@jbrentd[/USER]....the following is borrowed from one of my previous posts in another thread. It will likely be the best course of action, but you might do some research on Gunboards for additional info before tackling the project. I believe that the correct finish that was applied to the M28's would have been a stain followed by an oil finish that included varnish in the mixture. Because of the varnish in the mixture, it will be difficult to exactly replicate the appearance when just using pine tar, turpentine, and linseed oil. You might try applying a few different test mixtures with linseed oil and varnish on birch samples until you find one that looks most correct. Below is more info on the pine tar finish which I would suggest applying prior to your oil finish. I would be willing to attempt refurbing the stock for you, but it would likely take a few weeks to complete.</p><p></p><p>Let me preface this post by stating that I am not sure whether or not that pine tar can be considered a correct finish, only that it provides a close appearance to the product that Finns originally used. The only documented Finnish stock finish that I am aware of is Kiväärintukkiöljy which is a dark stock oil comprised mainly of tung oil, varnish, and drying agents. The use of pine tar has been debated for decades. I have personally only encountered one Finnish rifle that had what looked (and smelled) to be copious amounts of wood pitch applied to stock. It was covered in preservative grease and included a hang tag so I doubt that it had been applied after import. All other rifles that I have encountered looked to have Kiväärintukkiöljy or another oil finish applied. Some of which had a stain applied prior to applying the oil finish. Many collectors will say that the use of pine tar is just a myth. The Finns used a few different variations stock finishes over the course of the Mosin Nagant's service life so it is probably difficult to say "never" based on the lack of documented evidence here in the states. The recipe was likely altered a few times based on the different appearances throughout and even within model designations.</p><p></p><p>Hopefully this how-to will help someone come close to restoring the original appearance of a Finn stock that has been refinished here in the states.</p><p></p><p>Here's today's patient...hopefully the photos are acceptable. I chose to be lazy and used my cell phone instead of my Nikon.</p><p></p><p><img src="https://www.okshooters.com/data/MetaMirrorCache/i.imgur.com_bt3aLfNh.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p></p><p>Materials needed: Pine tar (Auson Swedish Pine Tar works best) and pure turpentine. You'll also need a small container to mix the two ingredients in as well as a brush to apply it. Gloves will also come in handy too.</p><p></p><p><img src="https://www.okshooters.com/data/MetaMirrorCache/i.imgur.com_XO5YmmZh.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p></p><p>Mix a small amount of pine tar and turpentine...equal parts if you are wanting a drier, matte appearance similar to most M39's and post-war refurbs. If you are looking for a higher sheen you will need to apply straight pine tar and allow for it to fully cure, then scrub the hardened pine tar with a 3M non-scratch pad dipped in turpentine. This will remove the excess tar, scrub the finish into the wood, and burnish the surface as well. If you decide to apply straight pine tar it is usually a 2 week process to allow the tar to cure and then finish the scrubbing process. In my case, I mixed the pine tar at a 75/25 ratio with turpentine and did not allow the tar to harden.</p><p></p><p><img src="https://www.okshooters.com/data/MetaMirrorCache/i.imgur.com_v5AG7sfh.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p><img src="https://www.okshooters.com/data/MetaMirrorCache/i.imgur.com_cgHJ6QIh.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p></p><p>After coating the wood, place it somewhere safe in the sun to bake. It helps drastically if the temps are at least 90 degrees. An alternate heat source (like a heat gun) will work, but it takes a ton of work.</p><p></p><p><img src="https://www.okshooters.com/data/MetaMirrorCache/i.imgur.com_3QHa83Ph.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p></p><p>After you have allowed the pine tar to sit on the wood for an extended period of time (this handguard sat in the sun for 8 hours), wipe (or scrub) down the wood with turpentine. You should see results similar to those in the photo below (no stains or oils have been applied...only pine tar and turpentine).</p><p></p><p><img src="https://www.okshooters.com/data/MetaMirrorCache/i.imgur.com_nweEEWFh.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p></p><p></p><p>After allowing at least 48 hours to dry you may stain or apply oil if needed. I would recommend staining with an alcohol based stain after applying the pine tar if you are trying to match an existing piece of wood. If you stain first you will likely end up with darker wood that has little contrast in the figured areas. The handguard shown in the photos below has been lightly toned with RIT brown dye since the spliced forend on the rifle was slighly darker than the rest of the stock. It then received a coating of pure dark tung oil. After the previous coat has fully cured, I will likely add an additional coat of pine tar.</p><p></p><p><a href="http://imgur.com/S65g1ir" target="_blank"><img src="https://www.okshooters.com/data/MetaMirrorCache/i.imgur.com_S65g1irh.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></a></p><p></p><p><img src="https://www.okshooters.com/data/MetaMirrorCache/i.imgur.com_w2xbwgFh.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p></blockquote><p></p>
[QUOTE="coolhandluke, post: 2911355, member: 13284"] [USER=24925]@jbrentd[/USER]....the following is borrowed from one of my previous posts in another thread. It will likely be the best course of action, but you might do some research on Gunboards for additional info before tackling the project. I believe that the correct finish that was applied to the M28's would have been a stain followed by an oil finish that included varnish in the mixture. Because of the varnish in the mixture, it will be difficult to exactly replicate the appearance when just using pine tar, turpentine, and linseed oil. You might try applying a few different test mixtures with linseed oil and varnish on birch samples until you find one that looks most correct. Below is more info on the pine tar finish which I would suggest applying prior to your oil finish. I would be willing to attempt refurbing the stock for you, but it would likely take a few weeks to complete. Let me preface this post by stating that I am not sure whether or not that pine tar can be considered a correct finish, only that it provides a close appearance to the product that Finns originally used. The only documented Finnish stock finish that I am aware of is Kiväärintukkiöljy which is a dark stock oil comprised mainly of tung oil, varnish, and drying agents. The use of pine tar has been debated for decades. I have personally only encountered one Finnish rifle that had what looked (and smelled) to be copious amounts of wood pitch applied to stock. It was covered in preservative grease and included a hang tag so I doubt that it had been applied after import. All other rifles that I have encountered looked to have Kiväärintukkiöljy or another oil finish applied. Some of which had a stain applied prior to applying the oil finish. Many collectors will say that the use of pine tar is just a myth. The Finns used a few different variations stock finishes over the course of the Mosin Nagant's service life so it is probably difficult to say "never" based on the lack of documented evidence here in the states. The recipe was likely altered a few times based on the different appearances throughout and even within model designations. Hopefully this how-to will help someone come close to restoring the original appearance of a Finn stock that has been refinished here in the states. Here's today's patient...hopefully the photos are acceptable. I chose to be lazy and used my cell phone instead of my Nikon. [IMG]https://www.okshooters.com/data/MetaMirrorCache/i.imgur.com_bt3aLfNh.jpg[/IMG] Materials needed: Pine tar (Auson Swedish Pine Tar works best) and pure turpentine. You'll also need a small container to mix the two ingredients in as well as a brush to apply it. Gloves will also come in handy too. [IMG]https://www.okshooters.com/data/MetaMirrorCache/i.imgur.com_XO5YmmZh.jpg[/IMG] Mix a small amount of pine tar and turpentine...equal parts if you are wanting a drier, matte appearance similar to most M39's and post-war refurbs. If you are looking for a higher sheen you will need to apply straight pine tar and allow for it to fully cure, then scrub the hardened pine tar with a 3M non-scratch pad dipped in turpentine. This will remove the excess tar, scrub the finish into the wood, and burnish the surface as well. If you decide to apply straight pine tar it is usually a 2 week process to allow the tar to cure and then finish the scrubbing process. In my case, I mixed the pine tar at a 75/25 ratio with turpentine and did not allow the tar to harden. [IMG]https://www.okshooters.com/data/MetaMirrorCache/i.imgur.com_v5AG7sfh.jpg[/IMG] [IMG]https://www.okshooters.com/data/MetaMirrorCache/i.imgur.com_cgHJ6QIh.jpg[/IMG] After coating the wood, place it somewhere safe in the sun to bake. It helps drastically if the temps are at least 90 degrees. An alternate heat source (like a heat gun) will work, but it takes a ton of work. [IMG]https://www.okshooters.com/data/MetaMirrorCache/i.imgur.com_3QHa83Ph.jpg[/IMG] After you have allowed the pine tar to sit on the wood for an extended period of time (this handguard sat in the sun for 8 hours), wipe (or scrub) down the wood with turpentine. You should see results similar to those in the photo below (no stains or oils have been applied...only pine tar and turpentine). [IMG]https://www.okshooters.com/data/MetaMirrorCache/i.imgur.com_nweEEWFh.jpg[/IMG] After allowing at least 48 hours to dry you may stain or apply oil if needed. I would recommend staining with an alcohol based stain after applying the pine tar if you are trying to match an existing piece of wood. If you stain first you will likely end up with darker wood that has little contrast in the figured areas. The handguard shown in the photos below has been lightly toned with RIT brown dye since the spliced forend on the rifle was slighly darker than the rest of the stock. It then received a coating of pure dark tung oil. After the previous coat has fully cured, I will likely add an additional coat of pine tar. [URL='http://imgur.com/S65g1ir'][IMG]https://www.okshooters.com/data/MetaMirrorCache/i.imgur.com_S65g1irh.jpg[/IMG][/URL] [IMG]https://www.okshooters.com/data/MetaMirrorCache/i.imgur.com_w2xbwgFh.jpg[/IMG] [/QUOTE]
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