3M TL77 Rite-Lok Threadlocker

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Description for 3M TL77 Rite-Lok Threadlocker

A one component anaerobic adhesive that cure and seal threaded assemblies is a permanent, high strength, high viscosity threadlocker designed to work well with larger diameter (up to 11 /2") and coarse threaded parts.

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Application Type	Bond, Seal, Threadlocker
1 Part or 2 Part	1 Part
Material Form	Liquid (before cure)
Substrate	Commercial aluminum (Active Fast cure) , Copper (Active Fast cure) , Brass (Active Fast cure) , Bronze (Active Fast cure) , Iron (Active Fast cure) , Kovar (Active Fast cure) , Manganese (Active Fast cure) , Monel (Active Fast cure) , Nickel (Active Fast cure) , Anodized Aluminum (Inactive Slow cure), Cadmium (Inactive Slow cure), Chemical black oxide (Inactive Slow cure), Galvanized steel (Inactive Slow cure), Gold (Inactive Slow cure), Inconel (Inactive Slow cure), Magnesium (Inactive Slow cure), Magnetite Steel (Inactive Slow cure), Plated parts (Inactive Slow cure), Silver (Inactive Slow cure), Stainless Steel (Inactive Slow cure), Zinc (Inactive Slow cure), Galvanized steel (Inactive Slow cure), Pure aluminum (Inactive Slow cure)
Manufacturer	3M
Chemistry	Dimethacrylate
Cure Method	Anaerobic
Cure Temperature (°C)	20 to 25
Cure Time (min)	1,440, 1,440
Viscosity (cPs)	High, 6,000 to 8,000
Fluorescent	Fluorescence
Color	Red
Torque (psi)	150 to 35 (in.lb), 150 to 500 (in.lb)
High Temperature Resistance (°C)	149
Low Temperature Resistance (°C)	-54
Key Specifications	Mil-Spec (United States Military Standard): MIL-S-46163A

Best Practices for 3M TL77 Rite-Lok Threadlocker

*See Terms of Use Below

Surface Preparation

Ensure parts are clean, dry and free from oil, grease and dirt. For best results, clean and dry parts with solvent or 3MTM Scotch-WeldTM Activator. (Activator can also be used on inactive surfaces or to accelerate the cure on active surfaces.)

If not sure of surface type, always use activator.
Application

Shake the adhesive bottle well before use.

Avoid touching the metal surfaces with the bottle tip since the metal ions may react with the adhesive upon contact and eventually may clog the bottle tip.

Apply adhesive onto the threaded part where the contact area will be in the final assembly. For larger parts, use more adhesive and rotate the threaded part to spread adhesive evenly around contact area.

For through holes, apply several drops of adhesive onto the bolt at the nut engagement area. For blind holes, apply several drops of the adhesive down the internal threads to the bottom of the hole.
Curing

Allow assemblies to set for sufficient time so that handling strength or full cure will occur before further processing or testing.

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Technical Data

Overview

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Specifications

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Best Practices

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Comparable Materials

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