Loctite 231089 High Strength Threadlocker 10ml

Product Description

The LOCTITE 231089 is a red, high-viscosity, high-strength threadlocking adhesive designed for large fastener applications. Sold in a 10ml bottle, it cures to lock threaded assemblies and prevent loosening, leakage, and corrosion caused by vibration and dynamic loads. The formula is particularly suited for bolts and studs greater than 1 inch in diameter, where gap-filling viscosity is essential for full thread engagement. Licensed trade professionals and maintenance technicians in HVAC, plumbing, electrical, and industrial service use this adhesive during equipment assembly and repair where permanent or semi-permanent fastener retention is required.

This threadlocker is appropriate for use on large-diameter bolts and studs in residential and commercial mechanical systems. It applies to threaded connections where vibration, thermal cycling, or operational stress would otherwise cause fastener migration. The red color provides a visual indicator that a high-strength compound has been applied. Disassembly is possible by heating the fastened assembly to 300 degrees C, making controlled removal achievable in service scenarios without destroying fastener hardware.

Key Features

• High torque strength for permanent-grade fastener retention on large threaded assemblies
• High viscosity formulation fills gaps on coarse and large-pitch threads greater than 1 inch
• Prevents unwanted movement, loosening, leaks, and corrosion in assembled joints
• Controlled disassembly possible by heating parts to 300 degrees C
• Meets military specification MIL-S-46163A Type I Grade L

Compatibility

Designed for use on large bolts and studs greater than 1 inch in diameter where high-strength, high-viscosity threadlocking adhesive is required.

Installation Notes

Clean and degrease all mating thread surfaces before applying the adhesive to ensure proper cure and bond strength. Apply product to the bolt threads prior to assembly and allow adequate cure time before applying load. To disassemble a cured joint, apply localized heat to the fastener assembly before attempting removal — do not attempt mechanical removal of cured joints without heating. Follow the applicable mechanical and safety codes for the system being serviced.

Technical Specifications

• Strength Grade: High Strength
• Viscosity: High
• Color: Red
• Volume: 10ml
• Minimum Fastener Size: Greater than 1 inch
• Disassembly Temperature: 300 degrees C
• Military Specification: MIL-S-46163A Type I Grade L
• Package Weight: 0.046 pounds
• Unit of Measure: Each

Standard Information

• Brand: LOCTITE
• Manufacturer Part Number: 231089