Permatex Optimum Grey is designed for maximum torque load and vibration resistance; typically used in import vehicles with closer bolt hold spacing. Permatex Optimum Grey gasket maker is the premium option for coolants especially post DEX-COOL. Use Permatex Optimum grey on high vibration and high toque applications such as valve covers, water pump, intake manifold end seals, thermostat housings.Features:
Maximum Rigidity and Maximum Torque Load & Vibration Resistance
Protects against leaks caused by vibration and thermal expansion
