Impact-Resistant Epoxies

Five epoxy-based adhesives join the Scotch-Weld 72xx B/A Series.
Feb. 9, 2006

The two-component adhesives bond numerous materials, cure at room temperature, and resist chemicals. Scotch-Weld 7240 B/A FR (flame-retardant) structural adhesive bonds steel, aluminum, or fiber-reinforced-composite materials such as SMC or pultrudates. The high-strength, halogen-free product has a working time of 45 min and gets hard to the touch after about 5 hr. Scotch Weld 7260 B/A retains its strength at high temperatures and resists aging. It adheres metals and other surfaces, can be worked for up to 8 hr, and gets hard to the touch after 18 hr. Scotch-Weld 7260 B/A NS (Non Sag), a nonflowing adhesive works on vertical surfaces and fills gaps. When used as reinforcing filler, it resists high pressures. For rapid setting, there are two fast-cure options Scotch-Weld 7260 B/A FC (fast cure) and 7260 B/A FC NS.

3M Engineered Adhesives Div., 3M Center, St. Paul, MN 55144, (888) 364-3577, 3m.com

About the Author

Sign up for Machine Design eNewsletters
Get the latest news and updates.

Voice Your Opinion!

To join the conversation, and become an exclusive member of Machine Design, create an account today!