Permatex Ultra Black Hi-Temp RTV Silicone - Gasket Maker 3oz

Permatex Ultra Black Hi-Temp RTV silicone gasket maker in a 3 oz tube, engineered for V-twin motorcycle engine gaskets and sealing surfaces. Fast-curing, sensor-safe formula withstands oil exposure and extreme temperatures from -65°F to 550°F intermittent.

Features

• Fast-curing formula
• Sensor safe and low odor
• Noncorrosive to gasket materials
• Retains high flexibility and oil resistance
• Temperature range -65°F to 550°F intermittent
• Meets OE silicone gasket performance specs

Specifications

• Brand: Permatex
• Manufacturer Part #: 82180
• UPC: 686226821805
• Size: 3 oz
• Weight: 0.27 lbs
• Dimensions: 3.8 in L × 7.95 in W × 1.35 in H

Fitment

For V-twin motorcycle engine gaskets and sealing applications, including Harley-Davidson and Indian Motorcycle models.

Frequently Asked Questions

Will this damage my oxygen sensors?

No — this is sensor-safe formulation and will not harm O2 sensors or other engine electronics.

How long before I can start the engine after applying?

Fast-curing formula sets quickly, but allow adequate cure time per package instructions before running the engine.

Can I use this on transmission and primary gaskets?

Yes — suitable for engine gaskets, transmission seals, and other high-temp V-twin applications up to 550°F intermittent.

Is this noncorrosive to aluminum and steel?

Yes — noncorrosive formulation safe for use on aluminum heads, steel gaskets, and all common engine metals.