Secure, reliable, and built for performance. LOCTITE® 518 is your go-to solution for creating strong, long-lasting seals on rigid metal flanges. Whether in automotive, manufacturing, or heavy machinery applications, it delivers the dependable performance that industries trust.
Why Choose LOCTITE® 518?
Formulated for medium-strength sealing, LOCTITE® 518 is designed to cure without air when applied between close-fitting metal surfaces. Its semi-flexible, gel-type consistency fills gaps up to 0.25 mm and adapts perfectly to flange irregularities. This creates a durable, chemical-resistant seal that won’t tear, decay, or suffer compression set—ensuring your equipment stays protected.
Key Benefits
- Versatile & Reliable – Works on cast iron, steel, and aluminum flanges.
- Contamination Tolerant – Cures even on slightly oily or dirty surfaces.
- Easy Disassembly – Parts can be separated even after prolonged use.
- Inventory Savings – Eliminates the need for large stocks of cut gaskets.
- Low-Pressure Instant Seal – Seals immediately upon assembly.
- High-Pressure Resistance – Maintains integrity once fully cured.
- Cost-Effective – Reduces manual assembly steps and speeds up production.
- Certified Quality – NSF P1 Reg. No.: 123758.
Typical Applications
Ideal for sealing close-fitting joints between rigid metal faces and flanges, and for creating in-place gaskets on rigid flanged connections such as transmissions, motor housings, and more.
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