Permatex® Ultra Red® Gasket Maker


Permatex’s Ultra Red RTV Gasket Maker is designed to meet the needs of high temperature repairs. This OEM specified gasket maker is sensor-safe, low odor, non-corrosive, and meets performance specs of OE silicone gaskets. This advanced formula is resistance to high temperature and high adhesion while also remaining resistant to oils and common shop fluids.

Applications: Header,  Exhaust Manifold, Turbocharge, Slip-fit Exhaust


  1. For best results, surfaces should be clean and dry.

  2. Cut nozzle and apply a continuous 1/16" to 1/4" (2 to 6mm) bead of silicone to one surface, surrounding all bolt holes. Assemble parts immediately while silicone is still wet. Finger tighten until material begins to squeeze out around flange.

  3. Let dry for one hour then tighten to torque specifications.

  4. Allow 24 hours to fully cure before filling with fluids or returning to service.

  5. Replace cap after use.

NOTE: Not recommended for use on head gaskets or parts in contact with gasoline.
US Part Number Canada Part Number Container Size Pack
81630 N/A 3.35 oz. Tube 12