Permatex® OPTIMUM GREY Gasket Maker

Specially formulated to withstand high vibration and high temperatures up to 700°F.

  • High Temp: up to 700°F
  • Maximum Torque Load Resistance
  • Sensor-safe, Low Odor, Non-corrosive
  • Extra Nozzle

OPTIMUM GREY combines maximum torque load and vibration resistance with extreme temperature resistance: -65°F to 700°F (-54°C to 371°C) intermittent, expanding uses and applications.  Designed for high performance and high temperature applications common in import & late model engines and component upgrades.  It is sensor safe, low odor, and non-corrosive.  Also, an extra nozzle is included adding convenience, eliminating the hassle of a clogged nozzle, and allowing multiple uses of each tube without loss of product.  The rigid torque and high temperature feature combination joined with outstanding resistance to oils, coolant, and shop fluids make OPTIMUM GREY one of the most versatile gasket makers available.

OPTIMUM GREY Suggested Applications:

  • High Temp: assemblies where high temperature & high vibration exist.
  • For high performance & premium components.  Newer domestic & import vehicles.

Valve covers, intake manifold end seals, timing covers, water pump and thermostat housings, exhaust manifolds/headers, and slip-fit exhaust parts.

US Item #CDN Item #Container SizeCase
27036N/A3.35 oz tube, 2 nozzles, carded12
US Item #Tech Doc File
27036TDS  SDS  

OPTIMUM GREY Instructions:

  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.

print instruction print

Tech Documents

Type the appropriate five-digit US Or Canadian part number(s) into the field and click on the Search button. If entering more than one five-digit part number, please separate by a comma. For example: 25224,25218,24010,27010