Dow Corning 737 neutral cure sealant features a wide variety of uses and a quick cure time. It can be used on a variety of different substrates without requiring a primer. Some surfaces that this aircraft sealant adheres well to include plastics, metals, rubbers, glass and painted surfaces. This sealant cures at room temperature when it is exposed to ambient moisture in the air. It only takes 3 to 6 minutes for the sealant to develop a skin and 14 minutes for the sealant to be tack-free. Handling condition is achieved after just 24 hours of cure time.