Permatex 81624 Ultra Red High Temp RTV Silicone Gasket Maker 13 oz

The Permatex 81624 Ultra Red High Temperature Gasket Maker is a red RTV silicone gasket maker (also called a formed-in-place gasket sealant) that comes in a 13 oz tube. It can replace many pre-cut gaskets, and it suits high-heat jobs such as exhaust manifolds, headers, turbochargers and slip-fit exhaust parts.

Key Features:

• Withstands intermittent temperatures up to 650°F
• Sensor-safe, non-corrosive RTV silicone formula
• Resists high thermal cycling
• Low-odor formula with strong adhesion and a flexible seal
• Works as a formed-in-place gasket or as a gasket dressing
• 13 oz net content

Ultra Red is a low-odor formulation that Permatex positions as an improvement over its earlier Red RTV. It gives a durable, flexible seal for high-temperature automotive repairs.