Smoother, More Efficient Sealer ApplicationJobs Designed specifically for use with 3M™ Urethane Seam Sealer cartridges, the 3M™ Single Component Cartridge Applicator Gun is simply the right tool for sealing voids, gaps and seams in vehicle panels. This pneumatic applicator gun is sized to hold 10.5-oz. (310 mL) cartridges of single component 3M Urethane Seam Sealers. A secure fitting at the inlet readily accepts standard air fittings. Easy trigger-pull action provides control for smooth, effective seam sealer application. Collar twists off for easy cartridge changeouts. For best operation use with an air regulator at 20 to 30 PSI inlet pressure. This applicator gun is part of a single component cartridge application system that creates shop efficiency during application of sealers and other materials. It also helps technicians apply more smoothly, reducing rework. The Science of Working Together from 3M 3M believes that the best way to get the job done right is to let all of your tools and materials work together. The Single Component Cartridge Applicator Gun is just one example of that – designed to precisely fit our seam sealer cartridges, and to help provide the best tool of all: a system that works. Just another way that 3M applies science to make life easier for operators in collision repair.