POR-15 Rubberized Under Coating spray is a flexible, paintable, textured black coating. It is the only rubberized undercoating for cars with POR-15 Rust Preventive technology and will protect against moisture, salt, chemicals, dust, heat, and cold. This rubberized paint for metal is an excellent moisture barrier for application over auto body repairs and creates an effective sound barrier that reduces vibration and deadens sound in wheel wells, quarter panels, fenders and under carriages. This undercoating spray paint provides superior adhesion to both painted and unpainted surfaces. POR-15 Rubberized Under Coating has superior resistance to road salt and will resist chipping and abrasions. May be used to insulate against engine and muffler noise, protects against dust penetration, and exhaust fumes. POR-15 Rubberized Under Coating spray can be applied directly over POR-15 Rust Preventive Coating for the toughest rust, corrosion and moisture barrier possible along with excellent sound and vibration deadening. POR-15 Rubberized Under Coating Directions