The 3M™ Body Schutz Applicator Gun is built specifically to apply textured 3M undercoatings and corrosion inhibitors during collision repair. The durable all metal applicator gun connects easily to a standard air compressor (1/4 in. NPT inlet) and accepts 3M™ Rubberized Body Schutz, and 3M™ Rocker Schutz. A smooth trigger action lets you apply coatings in even layers.