Flexbar Rocksett Muzzle Adhesive — 1 oz High-Temp Thread Lock for Muzzle Brakes & Suppressors

Flexbar Rocksett™ Muzzle Adhesive is a ready-to-use, high-temperature thread adhesive designed to lock muzzle brakes, compensators, and suppressors securely without heat, mixing, or priming.

Rocksett™ is a single-component adhesive formulated for firearms applications where threads and assemblies face extreme heat and vibration. Offered in a convenient 1 oz bottle, it bonds and stabilizes muzzle devices to prevent loosening under recoil while remaining removable with a hot water soak. This product is engineered to handle intense temperatures up to 2000° Fahrenheit and cures at room temperature, making it practical for gunsmiths, armorers, and hobbyists alike.

How does Rocksett™ perform under high temperatures?

Rocksett™ is formulated for environments where muzzle devices and suppressors can become extremely hot. It withstands flash and continuous heat without softening, helping maintain thread integrity during firing sessions.

• Rated heat resistance up to 2000° F for brief exposure.
• Stable at elevated temperatures encountered near muzzles and gas systems.
• Resists heat-related creep and loosening better than many general-purpose adhesives.

Will I need special tools, heat, or primers to use it?

No special preparation is required: Rocksett™ arrives ready to apply. The one-component formula eliminates mixing and priming steps, and it cures without added heat, simplifying installation on the bench or in the field.

• Apply directly from the bottle to clean threads—no mixing or primer.
• Cures at room temperature; no external heat source needed.
• Compatible with standard gunsmithing tools for installation and torqueing.

How removable is the bond when disassembly is needed?

While Rocksett™ creates a secure, vibration-resistant joint, it is designed to be serviceable. Disassembly is possible by soaking the affected assembly in hot water, which softens the adhesive for easier rotation and removal.

• Removable by hot water soak—no harsh chemical solvents typically required.
• Allows maintenance or part replacement without damaging threads when done properly.
• Provides a balance between permanent locking adhesives and temporary thread compounds.

What applications are best suited for this product?

Rocksett™ is ideal where heat, vibration, and thread security are concerns. It’s optimized for attaching muzzle brakes, recoil compensators, and suppressors, but can be useful for other high-heat threaded assemblies.

• Muzzle brakes, compensators, and threaded suppressors.
• High-vibration or high-heat gun components near the muzzle.
• Situations where a strong, serviceable adhesive is preferred over mechanical locking methods.

Who is this for: Rocksett™ Muzzle Adhesive suits gunsmiths, range technicians, competitive shooters, and firearm enthusiasts who need a dependable thread-locking solution that endures intense heat and recoil yet remains removable for maintenance. If you assemble or service muzzle devices and want a no-fuss, high-temp adhesive that reduces the risk of parts working loose, this product offers a practical balance of strength, heat resistance, and serviceability.