Document x5w8Yb8nja7njv42g5bLXvmzE

C%5 <T3K-OF3g XT75Enz*t> ciovslendorwc Caam Laboratory om- ,.0<. Cleveland o'^i Orgsnie * a*rE ItonibK 15, 1971 Catalyst Kes. 'AS. 0. J. Gruzuiltt SUe.'SCT Load Drier Saplacaeent in SOP, A2 V 1 tm-r: Cf JjCThTTJ BY file #51 Thinks for your dc.zai.lai report oa tha above subject. Wa do not hare great hopes to continue with oar present oil type white house aloe* If lead concent la reduced to OZ. x. would be very hesitant to procoed with oar present oils pins cobalt driers because of the dang** e wrinkling la the field. If we would consider doing ora work vith oils, a polyamide modified type would be worth lovestlgating. & This type tends to thzosgh dry ouch batter than ordinary oils and has greatly reduced wrinkling tendencies. This night pemlt the use of cobalt driers la place of lead. The performance and ecsnonlca of this approach would have to be compared to ea alicyd sysceai. KA-I Zn very dark colon we do hare a severe drying problem 12 lead content la reduced much Ices then 1Z n HVK. Loas of drying on aging becomes very pronounced. Fortunately, aircoclue does ouch batter in aUeyda than oils. This la also where we ere hopeful cobale feed* drlen aa offered hy Sneer end Huodax nay be helpful. Sons polyamide icy also help. L. L. leek. Assistant Director Cloveload Coatlago Laboratory ec; J. C. Weaver K. a. Koore P. A. Koateaeak A. F. Eacosttl J. J. Isusttl J. Tlllsan G. G. Schorr Area Neaegexe 0007-SWP-037409 N22909