Document R4BxKnExQXEpmraj0kaNq5eB

cc: V. J. Labrecque ^ S. M. Lillis J. A. Johnson March 6, 1969 Mr. Van Sebastian Sftlth & Kanzler Company Iklk Bast Linden Avenue Linden, Sew Jersey 07036 Dear Taut Confirming oar telephone converaation of March 3, 1969, we have agreed to tfaa following experiment on 6222 in .058"/.O66w gauges Add Butyl Zimate, 1.0 phr to three batches Add Butyl Ziaate, 1.5 phr to three batches You will be sending samples to us for evaluation. Samples of material made with extra Methyl Toads were examined and show m improvement In tensile strength when compared with standard production sample, <1100 pal increased to 1300 psi). Samples aade with increased binder showed no improvement in fleariMlity characteristics. Congratulations on the new daughter. I was glad to hear about her and that she and yonr wife are doing well. Very truly yours, VX0108 OASKST DIVISION O&MA OOfifOSATiOH Carl I. Hayden Materials Development Laboratory pt VPD-153-0002545