Permatex 85409 Ultra Rubber Gasket Sealant and Dressing, 1 oz. tube Non-hardening, soft-setting formula makes gasket repositioning quick and easy Condition gaskets for longer life and seal potential leak paths Provides outstanding oil and fluid resistance Temperature range -65F - 400F Suggested Applications:Designed for use on all cut and formed rubber gaskets, but also great to condition and extend the life of composite, paper and cork gaskets