Fossil-Collecter Posted January 24, 2019 Share Posted January 24, 2019 Hi Everyone, I recently decided to start preserving all of my pleistocene fossils and feel that Butvar-76 would be the best option. My problem is I can't find it anywhere. I contacted the Florida Paleontological Society and they said they don't carry it anymore. They recommended I either use Duco Cement in acetone or to look on the Museum Service Corporation website. On the Museum Service Corporation website it says that Butvar-76 has been discontinued, but they have an equivalent called B08SY Resin. Here's what they have listed: Butvar Resins White, free flowing powders. Generally soluble in alcohols, acetone and aromatic hydrocarbons. Forms films similar to polyvinyl acetate and is suggested as picture varnishes. Widely used to waterproof textiles. The films resist degradation by sunlight and heat. Average molecular weight is 30-34,000. Butvar B-76 has been discontinued. B08SY Resin is considered an equivalent resin to Butvar B-76, from a different supplier. It utilizes the same Polyvinyl Butyral resin as Butvar B-76. B08SY resin has the same solubility as Butvar B-76, but has a smaller grain size. Contact Museum Services Corporation for additional information, or to acquire a sample for testing purposes. F4503-001 B08SY 1 kilogram $34.00 F4504-001 B-79 1 kilogram $31.09 F4505-001 B-90 1 kilogram $25.08 F4501-001 B-98 1 kilogram $46.12 Has anyone bought B08SY or know where I can still get Butvar-76? If not, are there any consolidants that you would recommend using instead? Link to comment Share on other sites More sharing options...
Wendell Ricketts Posted January 24, 2019 Share Posted January 24, 2019 There’s still Butvar on sale on both Etsy and e - b - a - y. Eastman chemical also sells it. Have you done a Google search? I would *not* recommend Duco as a consolidant or stabilizer, even thinned. I stopped using it on fossils, even as glue, years ago. I don’t know the product you mention above, but I don’t know why it wouldn’t work. It strikes me as a little pricey, but you’ll get a lot of consolidant out of a kilo. I’d at least try asking if they’d send you 50 grams or something as a free sample. Might work! W 1 _________________________________ Wendell Ricketts Fossil News: The Journal of Avocational Paleontology http://fossilnews.org https://twitter.com/Fossil_News The "InvertebrateMe" blog http://invertebrateme.wordpress.com Link to comment Share on other sites More sharing options...
DPS Ammonite Posted January 24, 2019 Share Posted January 24, 2019 See link to an old post that says that Talas sells Butvar 76 and Paraloid B 72 (another good consolidant): http://www.thefossilforum.com/index.php?/topic/85813-source-for-butvar-paraloid-found-in-us/ Current info: https://www.talasonline.com/paints-and-finishes/resins 1 My goal is to leave no stone or fossil unturned. See my Arizona Paleontology Guide link The best single resource for Arizona paleontology anywhere. Link to comment Share on other sites More sharing options...
Fossil-Collecter Posted January 24, 2019 Author Share Posted January 24, 2019 (edited) Thanks guys! I'll check out both sites and see which has the best price. Edited January 24, 2019 by Fossil-Collecter Link to comment Share on other sites More sharing options...
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