The PC Products PPM-50 dispensing gun is designed to hold 50-ml PC Products epoxy cartridges and can be used with any sealant or adhesive with a coordinating cartridge size. The gun is made from steel for strength and durability. It has a thumb-release trigger for controlled application and a built-in ladder hook for hanging the gun when not in use. Protective Coating Company manufactures products to repair and restore various materials, including wood and concrete. The company, founded in 1954, is headquartered in Allentown, PA.