3M Scotch-Weld instant adhesive CA9 is a high strength cyanoacrylate adhesive that cures slower than many cyanoacrylates at room temperature. The longer set rate allows more time for proper alignment of parts before bonding takes place. It has excellent adhesion to many metals, plastics and rubbers and produces bonds with more shock and impact resistance than many typical cyanoacrylate adhesives. Meets CID A-A-3097, Type II, Class 3. - 3M Scotch-Weld instant adhesive CA9 is a medium viscosity instant adhesive. Our CA9 instant adhesive is formulated to be slow setting for more complicated assemblies. Once applied, the glue has fast handling time and cure to keep jobs moving quickly.