Ultra Copper Gasket Maker 3oz Carded Tube

Permatex Ultra Copper Gasket Maker 3oz Carded Tube is a high-temperature RTV silicone sealant designed for critical engine and mechanical applications where copper-reinforced reliability is essential. This gasket maker is ideal for operators maintaining tactical vehicles, field equipment, and industrial machinery that experience thermal stress beyond standard sealant capabilities.

The 3-ounce carded tube format allows for controlled dispensing and precise application, making it suitable for engine block sealing, valve cover gaskets, oil pan work, and transmission housing repairs. Its copper-infused formulation withstands sustained high temperatures while maintaining flexible adhesion to metal substrates, preventing blowout under thermal cycling.

Technicians and equipment maintainers working on small-block, big-block, and diesel platforms rely on this sealant for emergency field repairs and routine maintenance. The compact 3oz tube fits easily into duty bags and mobile tool kits, ensuring accessibility for rapid response maintenance on patrol vehicles, generators, pumps, and engine-driven equipment in demanding environments.