LOCTITE 518 FLANGE SEALANT 50ML

Create strong, flexible, and leak-free seals with Loctite® 518, the trusted medium-strength anaerobic flange sealant for machined, rigid metal surfaces. Designed for use on aluminium, cast iron, and steel, this versatile gasket maker fills gaps up to 0.25 mm, curing in the absence of air between close-fitting metal parts to form a durable, chemical- and solvent-resistant seal.

Loctite 518 replaces traditional paper, cork, or rubber gaskets, ensuring a perfect seal that resists vibration, pressure, and heat cycling without tearing or shrinking. Once cured, it provides a blowout-resistant seal that remains flexible for long-term performance, while still allowing for easy disassembly when required.

Ideal for flanged connections, transmissions, motor housings, pumps, and compressors, Loctite 518 performs reliably even on slightly contaminated or imperfect surfaces, making it a workshop essential for both automotive and industrial applications.

Key Features:

• Medium-strength anaerobic flange sealant for rigid metal assemblies

• Designed for aluminium, cast iron, and steel surfaces

• Fills gaps up to 0.25 mm for precision sealing

• Forms flexible, chemical-resistant seals that won’t tear or decay

• Resists vibration and blowout once cured

• Cures through minor surface contamination

• Replaces traditional cut gaskets – reduces inventory and waste

• Allows easy disassembly for servicing

• Colour: Red

Specifications:

• Brand: Loctite®

• Model: 518

• Type: Flange Sealant (Anaerobic Gasket Maker)

• Colour: Red

• Size: 50 mL

• Strength: Medium

• Gap Fill: Up to 0.25 mm

• Temperature Range: –55°C to +150°C

• Applications: Transmissions, motor housings, pumps, compressors, gearboxes

Reliable, clean, and long-lasting — Loctite® 518 provides a professional-grade, form-in-place seal for rigid metal flanges that won’t let you down.