Document ba8mRXX71mMxeKKNpmz2q0qzg

For Attention Cofyto The RUBEROID Co. SOUTH BOUND BROOK. N. J. Hr. Herbert JLbrahaa, President - K. T. Dau Jone 22, 1?L8 Itossrs. Coen nd High CiLSTLITS - IBSDUTDC (SENT / * / Rrfrrrnce iiijUN 2318 \ Far poor information I am attaching herewith a copy of Mr. Gordon1 s letter dated June 21. . Our experiments indicate that a satisfactory CalaHite ineulatlng Cement can he node from 119-B foraala dry scrap, finely pulverized and sized with 55i of 71 asbestos fiber. Oor experiments show that neither TV (0-0-1-15) nor TB (0-0-0-16) will sake a satisfactory cement in eachlistion with Calsilite. The work indicates that at least a 7X fiber (0-0-2-12;) Bust be used to get satisfactory application and aiaisua shrinkage results. If approziaately 16 tons of Calsilite waste are available per nonth, about 20 tone of 71 fiber would be required to work it 19 into esaeat. CZlilX Att. C. K. EESET 1 MICH01070