Permatex Ultra Red RTV Silicone Gasket Maker | 3 oz

Permatex Ultra Red RTV Silicone Gasket Maker 3 oz for High-Temperature Engine Repairs & Gasket Sealing

The Permatex® Ultra Red® RTV Silicone Gasket Maker is a premium high-temperature gasket maker engineered for demanding automotive, heavy-duty diesel, industrial, agricultural, and performance engine applications. Designed to withstand extreme heat and vibration, this sensor-safe RTV silicone creates reliable, leak-resistant seals that outperform many conventional cut gaskets.

Ideal for sealing valve covers, oil pans, timing covers, thermostat housings, differential covers, transmission pans, water pumps, and other flanged connections, Ultra Red offers superior flexibility, excellent oil resistance, and long-lasting durability. Its high-temperature formulation makes it an excellent choice for diesel engine repairs, fleet maintenance, and performance applications where dependable sealing is essential.

Whether you're servicing a Detroit Diesel DD15, Cummins X15, Paccar MX-13, Caterpillar, or other heavy-duty diesel engine, Permatex Ultra Red helps create durable seals that stand up to demanding operating conditions.

Key Features

• Premium high-temperature RTV silicone gasket maker
• Maximum temperature resistance up to 650°F (intermittent)
• Sensor-safe and non-corrosive formula
• Excellent resistance to engine oil, coolant, and vibration
• Forms reliable replacement gaskets for many applications
• Superior flexibility to resist cracking and shrinking
• Fast curing and easy application
• Ideal for automotive, diesel, industrial, and fleet maintenance
• Made in the USA

Specifications

• Brand: Permatex®
• Product: Ultra Red® RTV Silicone Gasket Maker
• Container Size: 3 oz Tube
• Color: Red
• Type: High-Temperature RTV Silicone
• Maximum Intermittent Temperature: 650°F (343°C)
• Sensor Safe: Yes
• Condition: New
• Made In: USA

Recommended Applications

• Valve Covers
• Oil Pans
• Timing Covers
• Thermostat Housings
• Water Pumps
• Transmission Pans
• Differential Covers
• Engine Front Covers
• Heavy-Duty Diesel Engine Repairs
• Fleet Maintenance
• Industrial Equipment
• Automotive Engine Repairs

Performance Benefits

• ✔ Creates durable, leak-resistant seals
• ✔ Withstands high engine operating temperatures
• ✔ Resists oil, coolant, and vibration
• ✔ Eliminates the need for many traditional paper gaskets
• ✔ Helps reduce leaks and future maintenance
• ✔ Trusted by professional technicians worldwide

Why Choose Permatex Ultra Red?

Permatex Ultra Red RTV Silicone Gasket Maker is trusted by professional technicians for sealing high-temperature engine components where durability and reliability are critical. Its advanced RTV silicone formulation provides dependable sealing performance in demanding heavy-duty diesel, automotive, and industrial applications.