Insta-Cure has a water-thin viscosity that wicks deep into joints by capillary action and cures in a matter of a few seconds.Insta-Cure+ is a higher viscosity CA for loose fitting joints in which the adhesive must bridge gaps. Normally, the thicker CA is applied to one surface and then the parts are held tightly together for about 5 to 15 seconds Maxi-Cure extra thick CA is the best CA for most plastics, including GE's Lexan MAXI-CURE is the best choice for plastic model assembly. When used with INSTA-SET, it works better than any putty for modifying or filling voids