Blue Threadlocker 36ml Bottle

The Blue Threadlocker 36ml Bottle by PERMATEX is an essential maintenance product for law enforcement, military, and tactical professionals who demand reliability from their equipment. Threadlocking compounds prevent fasteners from loosening due to vibration, temperature cycling, and operational stress—critical concerns for firearms, optics mounts, rail systems, and tactical gear where component failure can compromise mission success. This medium-strength formula is designed for general-purpose locking applications across a wide range of fastener sizes and materials commonly encountered in field operations and equipment maintenance.

PERMATEX Blue Threadlocker is a medium-strength anaerobic adhesive that cures in the absence of air when applied between fastener threads, creating a permanent mechanical lock without requiring removal of the component. The formula allows disassembly with standard hand tools if future service becomes necessary, making it ideal for field-deployed equipment that may require routine maintenance or repair cycles. The 36ml bottle size provides adequate coverage for multiple applications, remaining serviceable in tactical environments where space and weight are premium considerations, and the compact dimensions facilitate storage in maintenance kits and tactical bags.

Operators working with AR-15 platforms, pistol-mounted accessories, scope rings, and modular tactical systems benefit most from this threadlocker, as these systems experience continuous micro-movements under recoil and handling stress. Apply sparingly to fastener threads before assembly—the compound spreads throughout the thread interface when torqued, requiring only a small amount per application. Compatible with steel, aluminum, brass, and most fastener materials found in standard tactical configurations; verify with PERMATEX documentation for exotic coatings or specialized metals. Store in a cool environment and ensure cap is tightly sealed to prevent premature curing and maintain shelf life across deployment cycles.