Loctite 680 High Strength Retaining Compound 50ml
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High-strength retaining compound — locks bearings, bushings, sleeves and gears on shafts. Cures on mild steel, stainless and plated parts without a primer. Fixtures in about 4 minutes, full cure in 24 hours at 22°C. Loctite 680 is a green, low-viscosity anaerobic retaining compound for close-fitting cylindrical parts, certified to NSF/ANSI 61 for potable water systems up to 82°C. It is not normally recommended for plastics. To take parts apart, heat locally to about 250°C and separate while hot.
Product: Loctite 680 High Strength Retaining Compound. Size: 50 ml. Technology: acrylic, anaerobic. Chemical type: methacrylate ester. Appearance: green liquid, fluorescent under UV light. Components: one component, no mixing. Cure: anaerobic; activator as secondary cure. Viscosity (Brookfield RVT, 25°C): 750–1,750 mPa·s. Compressive shear strength (ISO 10123, steel, 7 days at 22°C): 26 N/mm². Compressive shear strength (stainless steel, 7 days at 22°C): 28 N/mm². Fixture time: 4 minutes. Full cure: 24 hours at 22°C. Approvals: NSF/ANSI Standard 61, potable water systems up to 82°C. Storage: 8°C to 21°C, dry. Consult the Safety Data Sheet before use.
At a glance
| Type | High Strength Retaining Compound |
|---|---|
| Cure | Anaerobic |
| Viscosity | 750–1,750 mPa·s |
| Fixture Time | 4 min |
| Size | 50 ml |
| Colour | Green |
- Bearings — retaining in housings and on shafts
- Bushings and sleeves — locking into housings
- Gears, pulleys and sprockets — slip-fitted onto shafts
- Stainless steel and plated assemblies — cures without primer
Full specifications, applications, features and important limits are in the tabs below.
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