AC649 3M | Alldatasheet
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Technical content
October, 2015 3M™ Scotch-Weld™ Activator AC649 Product Description 3M™ Scotch-Weld™ Activator AC649 is a general-purpose surface activator that cure anaerobic adhesives on inactive or very cold surfaces. For normal active surface, 3M TM Scotch-Weld TM Anaerobic Activator accelerate both xture and cure times signicantly. Product Features
- Used for anaerobic adhesives to accelerate the cure of the material at lower temperatures or for inactive surfaces.
- Accelerates cure on normal, active surfaces.
- Can be pre-applied in advance and has an on-part life of 30 days.
- Aids the successful bonding of parts with larger bond gaps
3M™ Scotch-Weld™ Activator AC649 Technical Information Note The following technical information and data should be considered representative or typical only and should not be used for specication purposes. Typical Uncured Physical Properties Property Values Notes Color Green Colors may vary from nearly white to yellow/amber. Adhesive performance is not aected by color variation. On-Part Life 30 day Viscosity 2 cP Typical Mixed Physical Properties Cure Speed: Typical Physical Properties Table continued on next page Property Values Solvent Resistance Acetone
3M™ Scotch-Weld™ Activator AC649 Typical Physical Properties (continued) Property Values Specic 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 sucient 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
3M™ Scotch-Weld™ Activator AC649 Precautionary Information Information Refer to Product Label and Material Safety Data Sheet for health and safety information before using this product. For additional health and safety information, call 1-800-364-3577 or 651-737-6501. Technical Information: The technical information, guidance, and other statements contained in this document or otherwise provided by 3M are based upon records, tests, or experience that 3M believes to be reliable, but the accuracy, completeness, and representative nature of such information is not guaranteed. Such information is intended for people with knowledge and technical skills sucient to assess and apply their own informed judgment to the information. No license under any 3M or third party intellectual property rights is granted or implied with this information. Product Selection and Use: Many factors beyond 3M’s control and uniquely within user’s knowledge and control can aect the use and performance of a 3M product in a particular application. As a result, customer is solely responsible for evaluating the product and determining whether it is appropriate and suitable for customer’s application, including conducting a workplace hazard assessment and reviewing all applicable regulations and standards (e.g., OSHA, ANSI, etc.). Failure to properly evaluate, select, and use a 3M product and appropriate safety products, or to meet all applicable safety regulations, may result in injury, sickness, death, and/or harm to property. Warranty, Limited Remedy, and Disclaimer: Unless a dierent warranty is specically stated on the applicable 3M product packaging or product literature (in which case such warranty governs), 3M warrants that each 3M product meets the applicable 3M product specication at the time 3M ships the product. 3M MAKES NO OTHER WARRANTIES OR CONDITIONS, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OR CONDITION OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR ARISING OUT OF A COURSE OF DEALING, CUSTOM, OR USAGE OF TRADE. If a 3M product does not conform to this warranty, then the sole and exclusive remedy is, at 3M’s option, replacement of the 3M product or refund of the purchase price. Limitation of Liability: Except for the limited remedy stated above, and except to the extent prohibited by law, 3M will not be liable for any loss or damage arising from or related to the 3M product, whether direct, indirect, special, incidental, or consequential (including, but not limited to, lost prots or business opportunity), regardless of the legal or equitable theory asserted, including, but not limited to, warranty, contract, negligence, or strict liability.
3M™ Scotch-Weld™ Activator AC649 3M United States 3M Center St. Paul, MN 55144-1000 800-362-3550 www.3M.com Please recycle. © 3M 2021. All Rights Reserved. The brands listed above are trademarks of 3M