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Zep Powder Formula 4358 is a heavy-duty car and truck wash that easily removes the heaviest accumulations of road film and soils. 4358 is formulated with a balanced blend of premium synthetic detergents, water softeners, soil emulsifiers, and alkaline builders, which makes the soap suitable for fine car surfaces or diesel-stained trucks and trailers.
Zep Formula 4358 can be used manually or in a high-pressure wash system.
Fast-acting and free-rinsing in both hard and soft water, Formula 4385 is an active detergent that contains no inert materials. All detergents used in 4358 are 100% biodegradable and allows for spot-free, easy rinsing. Non-irritating & scented.