Rubber: Butyl (IIR) Low Compression Set and Low Moisture/Gas Permeability 65 to 75 Type A Hardness for Seals in Desiccated or Other Systems Requiring Resistance to Gas and/or Water Vapor Permeation
橡胶:丁基(IIR)低压缩永久变形和低水分/气体渗透性65至75 A类硬度 适用于干燥或其他要求抗气体和/或水蒸气渗透的系统中的密封件
This specification covers a butyl rubber in the form of molded rings, compression seals, O-ring cord, and molded-in-place gaskets for aeronautical and aerospace applications. For sheet, strip, tubing, extrusions, and molded shapes use AMS3941 specification.