Document LKRE1E6nerkJ4O4aBZ7wnO1Nb

August 21, 1972 wmx CITY: y. 0. Kicittj ti<* Strongs vi.lj o FOR: Hr..Wm. Tome, D.P.J. SUBJECT.* ftgPlACKrtKNT OF U-IAD COHTAIIUNO FIGMENTS My bulletin of Juno 2, 1972 carried general recommendations for replacement of lead containing pigments, Several reports have been received from the laboratories retarding voxk they have done in replacing lead containing pigments in their formulations. Following is a summary of these reports for general information. The Son Francisco lab has reformulated several John Deere enamels as follows! SF-20793 Green U3s 10 lbs, W-9^3, U lbs, X-2476 8&erodegw Yellow {Code L-359)> 30 lbs. L-209 and 3 lbs, A-116 to replace the previous pigmentation based on L-lh3 and A-204. SF-20795 Lifiit Yellow uses 18 lbs. X-2476 (Code L-359) ond 92 IbB. W-9^3 . to replace 148 lbs. L-I30, SF-20796 Medium Yellow uses 74 lbs. L-343 and 15 lbs. L-356 to replace 111* jbs. V-83O, 109 lbs. L-1L0 and 26 lba. L-I38. BF-20797 Medium Red uses 5 lba. R-701 and 15 lbs. of Barium Litbol Rod (not further .identified in report) to replace 89 lbs. L-251 add 36 lbs. K-670. /) San Francisco has also reformulated 337-1,-14.100 Light Yellow Aerosol Enamel meeting1 Federal Btandard 1361O using L-304 and L-209 plus titanium dioxide to replace 0 combination of 1-210 and W-943. Tha Reading laboratory has used X-2864 Ouhare Yellow (Code L-364) and titanium dioxide to match the L-I38 Medium Chrome Yellow shade in the 318 and 248 line of shading bases. This replacement was selected on the basic of cost, nonbleeding, {od lightfastncso and baking properties. The Toronto laboratory has formulated. 369-6-304 Hansa Yellow to replace 3f>9-Y-l Light Chrome Yellow, and 36$)-L-393 Oreiige to replace 369-Y-120 Molybdate Orange. They also report that by blending 369-L-358 with 36y-Ii-304 a close approximation of 369-Y-2 Medium Chrome Yellow is obtained. The Carrollton lal>oratory tested several pigments in 318 line shading base quality and found that? Imperial's X-2.4/6 (Cede 1-359) could be used for L-110 Light Chrome Yellow. A mixture of y(/jt X-i?4v6 (j . }c9) and SOit X-2864 (l.-'j64) could be used for L-13B Medium Chrome Yellow, GLD012192 SUBJTCCTs RWIACtMBNT OF LEAD COMA'JHIBO PIQffiNTS (Continued) Page Two August 2.X, 1972 Either American Ifoechst .12-10X0 (ir 357) or 12-5000 (R-752) could be uaed in place of L-250 tmd/or L-251, but not as 0 lb. per lb. replacement. Ir-36!J (Imperial'b X-2864 Sahara Yellow) which appears to be useful in replac ing chrome yellow shades. is being added to the "Preferred" list of raw materials for formulation. Replacement of the .following Gel-Koto pigment concentrates 29*4-Y-928 (L~l*l2 Medium Chrome Yellow), 29>i-Y--932 (Ir-llh light Chrome Yellow) and 29>4-Y-920 (b ?50 Molybdate Orange) ip being investigated at the Research Center. They will forward information on results by the end of this week. In the event that you have formulated any shading banes with lead-free pigments, in whatever quality, pinnae notify me nh once of the formula numbers and the bases they are intended to replace. We would like to circulate that informa tion to avoid duplication of effort in this area. Rote that, in come crises, the .lead-free pigments used (i.e., IJansa yellows) may bleed in strong soL\onto. This information should be shown on the formula cards so that the plant may take the proper precautions to avoid contamination of subsequent productions which they would not have expected when using the lead-containing pigments. The notation*. "Contains bleeding pigment" should rfbe placed at the end of the "Manufacturing Instructions" section of the formula card, below the line corresponding to the lost raw material used. It wij.1 then be reproduced automatically on the production slips wherever the s3.ipwrit.ing program is in use. FUHsinh ' FOR; Technical .Directors & Lab Mgrs. cc; Plant Managers Furchasing Managers Dr. H. 1. Kiefer,U.C'.R, Mr. I. J. Foote, " Mr. L. Mustier, " Mr. E. J. Romny, " Mr, II. M. Werner, " Mr. R. J. Ilavilnnd, ('ent.rnl Mr. M. W. Malaga, " GLD012193