MOLYKOTE® CU-7439 Plus

MOLYKOTE® CU-7439 Plus Paste is a high-performance mineral oil-based anti-seize compound formulated with copper powder solid lubricants and advanced corrosion inhibitors for extreme-temperature fastener applications. This NLGI Grade 0-1 paste provides exceptional protection against thread galling, seizure, and corrosion on threaded connections repeatedly exposed to thermal cycling between -30°C and 650°C (-22°F to 1202°F). The distinctive copper color enables easy visual identification during assembly operations and quality control inspections, ensuring proper application on critical high-temperature fasteners.

Engineered specifically for automotive exhaust systems, turbocharger installations, industrial furnace components, and heavy equipment subjected to extreme heat and corrosive environments, MOLYKOTE® CU-7439 Plus prevents the catastrophic thread seizure that leads to broken studs, stripped threads, and costly component replacement during disassembly. The paste’s superior adhesion characteristics resist washout from steam, hot water, and pressure washing, maintaining lubrication integrity in marine, agricultural, and industrial applications where moisture and thermal stress combine to accelerate fastener corrosion. The formulation ensures easy bolt removal even after extended exposure to high temperatures and corrosive conditions, reducing maintenance downtime and eliminating the need for destructive extraction methods.