Urethane Supply Company's Insta-Weld Activator causes instant curing of Insta-Weld adhesives and other cycnoacrylate adhesives. Activator may be used before or after adhesive is applied. This is our "Fast" speed activator and cures the adhesive in about five seconds. One of the drawbacks of all this speed is that you might get some "blooming" of the adhesive when it cures. If you need less "blooming", get the Regular Insta-Weld Acrivator. Packaged in an 8 fl. oz.(236 ml) plastic bottle and a sprayer is included.