Document Gmo9zpb3KydGZaoXooJqnY9Nr

Pri'iii' * Advance Solvents & Chemical Go Fred. A. Stresen-Beuter ' Ferro Chemical & pries* Go. We-. 2, t. Xlift, %mh >. We. Q B. E. - Merkle, &ab. Mr. John Marshall, ml. P-7014 Mr. B. 1. Diehl* WIPb, P~$Q9S We, S. F, Ether, Ghiosgo Mr. 1, f. Brener, So. San Fran. C Dr. B. B. Paris, Flint Mr. J.P.EHiott, ilm. D-8026 "Vt Philadelphia laboratory February 4, 1948 MIMORANDBM' REPORT #M-l8l timiMcs ton BEXOGEH & OGT0ATE DUBES 0T KIR aiCifttflCW Several drier mnufaeturefts' are now marketteg a am type of drier. Chemically they are the mineral spirits solution of the metallic soaps - derived from ethyl hexo.le acid. Two. sour.oes. of .this net drier have been evaluated to determine hot? they compare with our standard lead, cobalt and manga- . nee n&phthenat /drier, Th sources' evaluated ver Advance Sol-., vents and Chemical Corp. Hexogen driers and Fred.A. Btresen-Beuter, Inc.'s Octoat.e driers. Also tee laded in this' study were Ferro Chemical Company-'e .naphthenate driers which they claim are superior to other naphthonat driers on the market for color and ease of disper.ion .because of their lower viscosity. $he*e drier were evaluated In 153-005 Fltetflex BlW.-v 51**234 Aluminum Vehicle, Bl-235'Sign Baking Vehlol and BK*265 A--5 Pry Sign Clear. Th& driers wore checked for drying properties, befe. initially and after five months storage, color and odor which the suppliers claim are superior to n&phthenates. Bee nits were as followt Prying Fropertie. Hon of the drier tested showed any advantage over our present source of naphthmate driers' either initially or after five months storage. In both 153-005 and BS-265 our naphthnate drier showed slightly better initial dry and noticeably better dry after five months. Color. Only slight difference* ter noted in the .00lor of the. clears with the advantage in favor of the naphtben&t .drier, fhi slight difference was net noticeable in the film, fhe Ferro drier were lightly superior to our n&phthen&tes. Odor .The dor of the Hexogen sad Octoat drlei'* as received is better than Ida n&phthenates, Also the odor of the enssala in tli can using the new type drier is less objectionable, However, when the bottoms of gallon can were painted and. .allowed to dry with the lids on and sniff tests made at various drying stages, the better odor was not as apparent. Results of the sniff tests show ed that the preference of individual mu divided about equally for odor between the naphthenates and the new type. In view of the above results, it does not appear that the Hexogen and Octoat driers are superior in any respect to our pre sent drier with the possible exception of odor in the package. Even if there was no question regarding the better odor of the new type drier, the deficient drying properties noted above would not warrant a general shift to them. The superior color claimed for. the Ferro' driers was not noticed in this study. miMmimu l a b o r a t o r y GPlseer DUP030003067