igh strength, methacrylate ester acrylic liquid designed for the bonding of cylindrical fitting parts, particularly where low viscosity is required.
LOCTITE® 680 is a green, high strength, methacrylate ester acrylic liquid designed for the bonding of cylindrical fitting parts, particularly where low viscosity is required. The product prevents loosening and leakage from shock and vibration. It provides robust curing performance. It works on active metals (e.g. mild steel) and on passive substrates (e.g. stainless steel and plated surfaces).
| Agency Approvals / Specifications | CFIA Listed, NSF/ANSI 61 |
| Application Method | Pressure |
| Applications | For Loose Fitting Parts, For Slip Fitted Parts, Retaining |
| Color | Green |
| Cure Type | Anaerobic Cure |
| Diametrical Clearance (Maximum) Unit | in. |
| Fixture Time | 4 min. |
| Fixture Time Temperature | 4 °C |
| Full Cure Temperature | 22 °C |
| Full Cure Time | 24 hr. |
| Gap Fill | 0.015 in. |
| Key Characteristics | Fluorescent, Oil Tolerant, Primerless, Strength: High Strength |
| Number of Components | 1 Part |
| Physical Form | Liquid |
| Shear Strength Unit, Steel | psi |
| Shear Strength, Steel | 4000 |
| Specific Gravity | 1.1 g/l |
| Specific Gravity Temperature | 25 °C |
| Substrates | Metal |
| Technology | Acrylic |
| Temperature | -65 - 300 °F |
| Viscosity | 1250 mPa.s (cP) Brookfield |
| Viscosity (#7sp/20/rpm) | 1250 mPa.s (cP) Brookfield |
| Viscosity Temperature | 25 °C |
Malaysia
