The Park Tool ASC-1 Anti-Seize Compound Grease 4 oz is a specialized lubricant formulated to prevent galling, corrosion, and metal-to-metal seizure between threaded and press-fit bike components. Whether you’re working on bottom brackets, pedals, headset cups, seatposts, or any other hardware that sees frequent installation and removal, this anti-seize compound helps ensure parts come apart cleanly without damage — even after long periods or exposure to harsh conditions.

Engineered with a blend of corrosion inhibitors and high-temperature stable additives, the ASC-1 compound withstands strong clamping forces and environmental factors that can cause threads to bind or surfaces to fuse over time. Its paste texture stays where you apply it, making installation tidier and more reliable than liquid oils. Using anti-seize on critical junctions reduces the risk of stuck components and helps maintain proper torque values without surprise resistance.

Ideal for both home mechanics and professional techs, Park Tool’s anti-seize compound adds confidence to assembly tasks where disassembly down the road is expected. A little goes a long way — just apply a thin, even coat to threads or contact surfaces before assembly for long-term protection and smoother service in future maintenance sessions.