Loctite® 243 lets you lock and seal slightly oily threaded fasteners with confidence; yet, when you need to disassemble the part for service, all you need are basic hand tools. This anaerobic product provides a vibration-proof, shock-proof, leak-proof seal. Loctite® engineers designed it with increased cutting-oil action for application on less active substrates, such as stainless steel and plated surfaces. The formula reduces the migration of the liquid product after application to the substrate. For threaded fasteners M6-M20. NSF/ANSI 61. CFIA Approved.

ABS-approved Loctite® 567 Thread Sealant holds up under temperatures to 204°C (400°F) with excellent solvent resistance. This easy-to-apply white paste is excellent for high-pressure applications: It locks and seals tapered metal, pipe threads and fittings—up to 68.9/Nmm2 (10,000 p.s.i./72 hours). While the seal is tough and durable, you can easily disassemble it with just hand tools. It’s ideal for stainless steel, aluminum, galvanized metal, and other inert metals.

Loctite® 515 is a one-component product that cures in the absence of air and seals close-fitting joints between rigid metal faces and flanges. It will flex with minor flange movements. Loctite® 515 provides resistance to low pressures immediately after the assembly of flanges. It makes flexible gaskets for rigid machined flanges with a gap of less than 1.27mm (0.050"). It flexes when flanges move in service.
Loctite® 515 is typically used as a form-in-place gasket for pumps, thermostats, compressors, transmission housings and axle covers.

Loctite® 648 is designed for bonding cylindrical fitting parts. It requires no mixing, so it is easy to apply. Loctite® 648 cures in the absence of air between close-fitting metal surfaces, preventing loosening and leakage from shock and vibration. Typical applications include holding gears and sprockets onto gearbox shafts, and rotors on electric motor shafts. Loctite® 648 increases the shear strength of cylindrical, non-threaded assemblies.

• An industry standard for assembling press- and slip-fitted parts.
• Fills the “inner space” between components and cures to form a strong precision assembly.
• A retaining compound recommended for continuous working temperatures up to 150°C (300°F).
• Fills gaps up to 0.15mm (0.006") diameter clearance.
• Fixtures in 5 minutes.