Insta-Cure+ is a higher-viscosity (gap-filling) cyanoacrylate adhesive for loose-fitting joints where the glue must bridge gaps. Apply to one surface and hold parts together for about 5 to 15 seconds; full strength is reached in roughly three hours. Bonds balsa and hard woods, glass, metal, fiberglass, ceramics, hard plastics, and rubber, and is well suited to laminating.