Threadlocker Anaerobic Adhesives

TL22 • TL42 • TL43 • TL62 • TL71 • TL72 • TL77 • TL90

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Directions for Use

3M™ Scotch-Weld™ Threadlocker Anaerobic Adhesives are not recommended for

use on most plastics due to potential cracking of plastic parts. Also, they are not

recommended for use in piping systems that contain pure oxygen or an oxygen-rich

environment, chlorine, or strong oxidizing substances.

For Assembly

1. Ensure parts are clean, dry and free from oil, grease and dirt. For best results,

clean and dry parts with solvent or 3M™ Scotch-Weld™ Activator. (Activator

can also be used on inactive surfaces or to accelerate the cure on active

surfaces.)

2. If not sure of surface type, always use activator. Refer to Material Surface

Activity and Cure Speed section for more information.

3. Shake the adhesive bottle well before use.

4. 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.

5. 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.

6. 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.

7. Assemble the nut/fastener and tighten as required.

8. Allow assemblies to set for sufficient time so that handling strength or full cure

will occur before further processing or testing.

For Disassembly

1. Loosen or remove with regular hand tools.

2. If hand tools do not work due to the assembled parts being well tightened, apply

localized heat (approximately 490°F) to the nut or bolt and disassemble while

parts are still hot. Use extreme caution when working with heat sources (e.g. heat

gun, flames, etc.

Handling Information

Active (Fast)

Inactive (Slow)

Material Surface

Activity and Cure

Speed

• Brass

• Bronze

• Commercial aluminum

• Copper

• Iron

•Kovar

®

• Manganese

• Monel

®

• Nickel

• Anodized aluminum

• Cadmium

• Chemical black oxide

• Galvanized steel

• Gold

• Inconel

®

• Magnesium

• Magnetite steel

• Plated parts

• Pure aluminum

• Silver

• Stainless steel

•Zinc