Document Qkra9L61aVM3J3mwN7E65Kpy5

GENERAL DISCUSSION OF PRESENTED TOPICS Q. What was the Du Pont standard that listed all of the asbestos-containing cements ? A. Cements SN-500M. Q, What has Johns-Manville been doing in the area of research? I certainly don't ejqpect them to be going out of the insulation business. A. Johns-Manville has been very quiet about this. We know they are trying to develop an asbestos-free product but we've heard some adverse results of these materials in shipment. I might mention that all of the asbestosfree calcium silicates we've sees so far by appearance and we can general characteristics are somewhat less than the previous asbestos- v bearing calcium silicates. They have lost aonething. We're going to have to learn to live with it. I don't know other than J-M's Thermo 12 which is & calcium silicate type insulation if they're using a glass fiber binder. They male no prediction other than the end of 1972. In other products, X don't know what they're heading into. Q. is Johns-Manville doing anything in the way of research on better engineering controlsT A. In their aim shops, I know nothing about. I can only asstaae thay'd have to be, because of the volume of asbeatoe they beadle for many products other than just thermal Insulation. q. These substitutes, during fabrication or whatever, produce flbrcue materials that satisfy the geometry of this regulation. Will they be DUP 0902072