- Prevents nuts and bolts from loosening with vibration
- Fills and seals threads completely to help prevent corrosion, rust, and leaks
- Eliminates the need for lock washers and other locking components
- Engineered for use on larger bolt sizes and coarse threaded parts
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Adhesive Type
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Anaerobic
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Applications
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Small Joint Assembly
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Brand
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Scotch-Weld™
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Breakaway Torque Strength
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220 to 350 Pound
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Flashpoint
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>=212 Degree Fahrenheit
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Full Cure Time
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24 Hours @ 72 F (22 C)
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Industries
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Appliance, Construction, Electronics, General Industrial, Metalworking, Military and Government, MRO, Signage, Specialty Vehicle, Transportation, Woodworking
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Maximum Operating Temperature (Celsius)
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149 °C
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Maximum Operating Temperature (Fahrenheit)
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300 °F
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Physical Form
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Liquid
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Prevailing Torque Strength
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220 to 350 Pound
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Product Colour
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Red
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Product Form
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Bottle
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Product Type
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Thread locker
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Removability
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Permanent
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Shelf Life in Months (from date of manufacture)
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12
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Storage Temperature
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72 F (22 C)
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Substrate
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Metal (Unpainted)
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Substrate 1
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Metal (Unpainted)
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Substrate 2
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Metal (Unpainted)
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Units per Case
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10, 2
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Viscosity
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Self-Leveling
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Viscosity Range (cps) at Room Temperature
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6,000-8,000
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- Prevents nuts and bolts from loosening with vibration
- Fills and seals threads completely to help prevent corrosion, rust, and leaks
- Eliminates the need for lock washers and other locking components
- Engineered for use on larger bolt sizes and coarse threaded parts
- Long open time anaerobic adhesive cures quickly
- Helps keep production equipment up and running
3M™ Scotch-Weld™ Threadlocker TL77 provides vibration, corrosion, and shock resistance for fasteners in assembled form. This red anaerobic adhesive is dispensed as a single-component, medium viscosity product. This high removal torque anaerobic adhesive offers a long open time and cures quickly in the absence of air when parts are assembled.
Our 3M™ Scotch-Weld™ Threadlocker TL77 hardens and seals threaded assemblies to resist vibration and prevent loosening or leakage of secured fasteners. Applying this adhesive to fasteners before tightening, helps seal out moisture and prevents corrosion. Application is fast and easy with just a targeted squeeze of the bottle. Engineered for use on larger bolt sizes and coarse threaded parts, the anaerobic formulation begins to cure quickly into a polymer that seals, secures, and retains. An activator can be used for even faster cure or larger gap sizes. The high-strength adhesive is only removable through high heat application. Our 3M™ Scotch-Weld™ Threadlocker TL77 is effective for locking, vibration resistance, sealing, and bonding threaded assemblies. Places where it is useful include machine tool access bolts, hydraulic system bolts, gear box/driveshaft bolts, bearing cover cap screws, countersunk screws, and conveyor roller bolts.
Suggested Applications
- Threadlocking of larger screws, bolts and nuts, and coarse threaded parts
- Designed to cure and seal threaded assembles for a wide range of applications
