CHASSISCOAT BLACK is a permanent black coating developed for application over painted and unpainted surfaces. Apply over POR-15 Rust Preventive Paint for the toughest, most permanent protection against rust and corrosion ever developed. CHASSISCOAT BLACK is non-porous and will not crack, chip, or peel when properly applied according to directions. It has amazing scratch and abrasion resistance and is similar in strength to regular POR-15 Rust Preventive Coatings. CHASSISCOAT BLACK is not sensitive to ultra-violet light and may be exposed to sunlight without damaging consequences. CHASSISCOAT BLACK has excellent adhesion characteristics and may be applied over POR-15 Rust Preventive Paint months or years later with proper preparation.