High-Strength Marine Threadlocker & Sealant

Keep critical fasteners locked and sealed against the harshest marine environments with our industrial-grade threadlocker and sealant compound. Specifically formulated for shipboard use, this anaerobic adhesive cures between metal threads to prevent loosening from vibration, shock, and thermal cycling. Whether you're securing engine mounts, pump housings, or deck hardware, this threadlocker delivers dependable holding strength while resisting saltwater, fuel, and hydraulic fluids.

Designed for the professional ship chandler and marine maintenance crew, this product serves dual purpose as a jointing compound for close-fitting metal surfaces. It fills microscopic gaps to create a tight seal against leaks, making it an essential addition to any vessel's maintenance kit. Available in a convenient tube for precise application, it simplifies routine repair and overhaul operations at sea or in port.

Key Features

Technical Specifications

PropertyValue
Product TypeAnaerobic Threadlocker & Jointing Compound
ColorRed (high strength)
Viscosity (cP)1,200 - 2,500 (thixotropic)
Gap Fill (max)0.015 in (0.38 mm)
Temperature Range-65°F to 300°F (-54°C to 149°C)
Curing Time (fixture)10-20 minutes at 75°F (24°C)
Full Cure24 hours
Torque Strength (breakaway)20-30 N·m (for M10 steel)
Shear Strength (axial)12-15 N/mm²
Primer RequiredRecommended for inactive or passive surfaces
Storage Life24 months below 80°F (27°C)
Sealant/Locking FunctionSeals threads, prevents loosening, resists leaking
Chemical ResistanceExcellent against saltwater, diesel, gasoline, oils, hydraulic fluids
Packaging Size50 ml tube

Frequently Asked Questions

What is the difference between threadlocker and thread sealant?

Threadlocker is designed to prevent screws and bolts from loosening due to vibration, while thread sealant prevents fluid and gas leaks through threaded joints. Our marine threadlocker combines both properties, offering locking strength and sealing capability for diverse shipboard applications.

How do I apply the threadlocker to marine fasteners?

Clean the threads with a degreaser and let dry. Apply a few drops of the compound onto the male threads, ensuring full coverage. Assemble the parts and torque to specification. The product cures anaerobically (without air) in the thread gap. For larger thread sizes, apply to both male and female threads.

Can this threadlocker be removed for maintenance?

Yes, high-strength formulations can be disassembled using hand tools plus localized heating (approximately 500°F/260°C) for larger bolts. After removal, clean the threads and reapply fresh compound before reassembly.

Is this product suitable for underwater or wet applications?

It performs well in wet environments after full cure, but surfaces must be free of oil, grease, and heavy corrosion during application. It is not recommended for direct underwater application because the curing process requires metal contact and absence of air. Use a marine-grade primer for active surfaces.

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