3M™ Scotch-Weld™ Activator AC649

Typical Physical Properties (continued)

Property

Values

Speci c Gravity

0.79 g/mL

Appearance

Liquid

Handling/Application Information

Directions for Use

Not recommended for 3M™ Gasket Makers due to up to 20% loss in strength.

1. Ensure parts are clean, dry and free from oil and grease.

2. Apply to one or both bonbon surfaces.*

~3. Allow parts to dry completely (30-60 seconds). Activator-coated parts may be held up to their on-part life but

surface contamination must be avoided.

4. Apply a 3MTM Scotch-Weld™ Anaerobic Adhesive to one or both parts making sure there is su cient product

coverage.

5. Assemble immediately, moving surfaces back and forth to ensure full distribution of the adhesive.

6. Secure the assembly until xtured.

*When using solvents and/or aerosols, extinguish all ignition sources, including pilot lights, and follow the

manufacturer’s precautions and directions for use.

Caution: Never mix adhesives and activator/primer liquids together.

Storage and Shelf Life

Store product in cool, dry area out of direct sunlight.

Product retains its performance and properties for 21 months from date of manufacture when stored at 60° to 80°F

(16° to 27°C) in the original unopened container.

References

Property

Values

3m.com Product Page

https://www.3m.com/3M/en_US/company-us/all-

3m-products/~/3M-Scotch-Weld-Anaerobic-

Activator-AC649?N=5002385+3293241324&rt=rud

Safety Data Sheet (SDS)

https://www.3m.com/3M/en_US/company-us/SDS-

search/results/?

gsaAction=msdsSRA&msdsLocale=en_US&co=ptn&q=AC649