| abstract |
A nitrile rubber-metal laminated gasket material comprising a surface-treating agent layer, an adhesive layer, and a rubber layer, which are sequentially laminated on a metal plate, wherein the surface-treating agent layer is formed using a surface-treating agent that is free from chromium and comprises of (A) a urethane resin or phenolic resin, (B) a silicon-containing compound, and (C) a fluorine-free zirconium compound or fluorine-free titanium compound as essential components. The nitrile rubber-metal laminated gasket material has excellent LLC resistance and oil resistance under high temperature, although it uses a surface-treating agent for metal, which is free from chromium and fluorine. |