Permatex Thread Lockers, Sealants & Lubricants

For over a century, Permatex has been the trusted name in automotive chemical solutions, and their thread lockers, sealants, and lubricants represent some of the most essential products in any technician's arsenal. Whether you're securing critical fasteners, sealing hydraulic fittings, or protecting threads from corrosion and seizure, Permatex delivers engineered solutions that perform reliably under the harshest conditions.

Thread Locker Technology That Works

Permatex threadlockers span from medium-strength blue formulas ideal for 1/4" to 3/4" nut and bolt applications, eliminating the need for lock washers while preventing loosening from vibration, to high-strength options for permanent installations. The innovative Orange Threadlocker hybrid formula combines red threadlocker strength with blue threadlocker removability, making it ideal for modern engine bays with lightweight components and high vibration applications while remaining removable with hand tools when extra force is applied. Available in both liquid and gel formulations, these products cure as thermoset plastics that lock fasteners securely while protecting threads from corrosion.

Revolutionary Seal & Lock Thread Compound

Permatex developed a revolutionary hybrid product that combines the power of a thread sealant and threadlocker into one, offering functionality that competing products cannot match. The Seal & Lock compound delivers an airtight, watertight seal up to 1000 PSI while withstanding extreme temperatures from -60°F to 300°F, and rapidly cures to handle up to 10,000 PSI for heavy-duty applications like stainless steel fittings, oil lines, and fuel systems. This innovation addresses the challenge mechanics face when they need both sealing and locking in a single application.

High-Temperature Thread Sealants

Permatex high-temperature thread sealants resist leakage, vibration loosening, moisture, hydraulic fluids and diesel fuels while lubricating threads for easy assembly and disassembly, and won't shred or wear like Teflon tape. With a temperature range of -65°F to 400°F and PTFE content, these sealants work on threaded metal fittings throughout hydraulic, pneumatic, fuel, and cooling systems. Parts can be repositioned up to 4 hours after application, providing flexibility during installation.

Anti-Seize Lubricants and Specialty Solutions

Permatex Anti-Seize Lubricant operates across a temperature range of -60°F to 1600°F and prevents galling, corrosion, and seizing on exhaust bolts, slip joints, and spark plugs. The extensive product line includes PTFE-enhanced thread sealants, pneumatic/hydraulic formulations, RTV silicone gasket makers, and specialized marine-grade solutions. Each product is formulated for specific applications, ensuring optimal performance whether you're working on differential drain plugs, oil pressure sensors, brake fittings, or fuel system connections. With engineered chemistry that delivers professional results for both DIY enthusiasts and professional technicians, Permatex thread lockers, sealants, and lubricants provide the reliability modern vehicles demand.