Description
LOCTITE 518 is a medium-strength, general purpose gasketing product with excellent contamination tolerance. Ideal for use on casted iron, steel and aluminum flanges.
LOCTITE® 518 cures when confined in the absence of air between close-fitting metal surfaces. It is an anaerobic gasketing material designed for use on rigid iron, aluminum, and steel flanged mating surfaces. LOCTITE 518 fills gaps up to 0.25mm and forms a flexible, chemical-resistant seal that will not tear or decay. Parts disassemble easily, even after extended service. Typical applications include sealing close-fitting joints between rigid metal faces and flanges. It is also used as a formed-in-place gasket on rigid flanged connections, e.g. transmissions and motor housings.
- Semi-flexible, medium-strength anaerobic flange gasket
- For active and inactive rigid metal flanges
- Cures through minor surface contamination
- Adapts to flange surface irregularities and gaps up to 0.25 mm
- Gel-type consistency
- Seals instantly against low pressure
- Reduces inventory costs – no need for large inventory of cut gaskets
- Resists high pressure when fully cured
- No compression set or misaligned gaskets
- Easy to automate
- Reduces process costs – eliminates manual assembly of conventional gaskets
- NSF P1 Reg. No. 123758
| Application Method | Dispense System, Manual |
| Applications | Rigid Assembly Gasketing, Sealing |
| Color | Red |
| Cure Type | Anaerobic Cure |
| Fixture Time, Steel | 25.0 min. |
| Gap Fill, Unprimed | 0.25 mm |
| Key Characteristics | Fluorescent, For machined, rigid flanges, Immediate Low Pressure Sealing, Strength: Medium Strength, Surface Contamination-Tolerant, Thixotropic |
| Operating Temperature | -55.0 – 150.0 °C (-65.0 – 300.0 °F ) |
| Physical Form | Gel |
| Specific Gravity, @ 25.0 °C | 1.1 |
| Substrates | Metal: Aluminum, Metal: Iron – Cast Iron, Metal: Passive Metal, Metal: Steel |
| Technology | Acrylic |
| Viscosity | 750000.0 mPa·s (cP) |
