High Temperature Instant Gasket Sealant Black
Granville High Temperature Black Instant Gasket Sealant 200ml
Professional-grade silicone sealant for high-heat applications.
Granville High Temperature Black Instant Gasket Sealant is a high-performance RTV silicone designed to form a flexible, durable, and oil-resistant seal in high-temperature environments. Ideal for engine assembly, exhaust systems, sumps, and valve covers, it replaces traditional pre-cut gaskets with a reliable, long-lasting seal that resists cracking, shrinking, and vibration.
Capable of withstanding extreme temperatures, this sealant remains flexible and provides superior adhesion to metal, glass, ceramics, and most plastics — making it perfect for automotive, industrial, and engineering use.
Key Features
- High Temperature Resistance: Withstands continuous heat up to +300°C (and short-term peaks beyond).
- Flexible RTV Silicone: Maintains elasticity and durability under vibration and pressure.
- Oil & Fluid Resistant: Ideal for use with oil, water, and coolant contact areas.
- Instant Gasket Formation: Replaces traditional pre-formed gaskets.
- Excellent Adhesion: Bonds securely to metal, glass, ceramics, and plastics.
- Easy to Apply: Smooth application and clean finish.
Applications
Engine sumps, valve covers, and timing covers
Exhaust manifolds and systems
Gearboxes, water pumps, and thermostat housings
Industrial sealing and general maintenance
Size: 200ml
Colour: Black
Temperature Range: Up to 300°C continuous
Type: RTV Silicone Sealant
Manufacturer: Granville (UK)