Zep Blue Marvel is a concentrated, high-foaming car wash detergent designed for exceptional performance in brush-type car and truck wash facilities or manual application. This environmentally preferred formula penetrates and loosens road film, salt deposits, and heavy soils. Perfect for use on Trucks, Semi-trucks, cars, & motorcycles. Its thick foam ensures complete coverage, excellent lubricity, and easy rinsing for streak-free results. Perfect for professional and self-serve applications, Zep Blue Marvel delivers a brilliant clean without harsh chemicals like phosphates or chlorine bleach.