Permatex 26240 Red High Strength Thread Sealant 36ml

Product Description

The PERMATEX 26240 is a permanent, high-strength red liquid thread sealant and threadlocker designed for fasteners ranging from 3/8 inches to 1 inch in diameter. It serves a dual purpose: locking threaded fasteners against loosening and sealing cylindrical metal assemblies against leakage. Once cured, the bond is permanent and resistant to oil, heavy shock, vibration, and extreme chemical or environmental exposure. Functional cure is achieved in 20 minutes, with full cure reached at 24 hours. Installed by HVAC technicians, plumbers, mechanics, and millwrights wherever high-load threaded connections require a reliable, non-removable seal.

The 26240 is applied to fasteners before assembly in residential and commercial mechanical systems where vibration, thermal cycling, or chemical exposure would cause conventional fasteners to loosen or leak. It is also used to secure and seal cylindrical press-fit or slip-fit metal assemblies. Common applications include pipe fittings, motor mounts, structural fasteners, and heavy equipment hardware. The 36ml bottle size suits both bench work and field service. Disassembly after cure requires localized heating and hand tools.

Key Features

• Permanent high-strength bond resists loosening from shock and vibration
• Dual-purpose formula locks threaded fasteners and seals cylindrical metal assemblies
• Functional cure in 20 minutes; full cure in 24 hours
• Rated for operating temperatures from -65 degrees F to 300 degrees F
• Oil-resistant formulation suitable for lubricated or contaminated fastener surfaces
• Applies to fastener sizes 3/8 inches to 1 inch

Compatibility

Designed for use on threaded metal fasteners from 3/8 inches to 1 inch in diameter and for sealing cylindrical metal assemblies requiring a permanent, high-strength bond.

Installation Notes

Apply to clean, dry fastener threads before assembly. Power down or depressurize any system before servicing threaded connections. Allow a minimum of 20 minutes for functional cure before applying load, and 24 hours for full cure before returning the assembly to service. Disassembly after full cure requires localized heat and hand tools; do not attempt cold disassembly on permanently locked fasteners.

Technical Specifications

• Strength: High
• Color: Red
• Form: Liquid
• Volume: 36ml
• Fastener Size Range: 3/8 inches to 1 inch
• Functional Cure Time: 20 minutes
• Full Cure Time: 24 hours
• Operating Temperature Range: -65 degrees F to 300 degrees F (-54 degrees C to 149 degrees C)
• Oil Resistant: Yes
• Disassembly: No (permanent bond)
• Container Type: Bottle
• Instructions Included: Yes
• UPC: 686226262400

Standard Information

• Brand: PERMATEX
• Manufacturer Part Number: 26240