PX OPTIMUM BLACK PB

Permatex’s Optimum Black is an advanced maximum flex and oil resistance RTV gasket maker. Optimum Black provides an operating temperature range from -75 to 500 °F. It resists aging, weathering and thermal cycling without hardening, shrinking or cracking Works great on newer lightweight and premium components, as well as oil pans and timing covers OPTIMUM BLACK combines maximum oil resistance with maximum flexibility