PPC Phix Corrosion Treatment, Rust Remover, Pre-paint Primer, and Zinc Phosphate Metal Etch Conditioner 20 Oz PPC Phix Corrosion Treatment: Dissolves rust fast without harming paint, fiberglass, chrome or rubber. Pre-paint Primer: Conditions metal, increases paint adhesion, and eliminates the need for etching primers. Master formulated with Zinc Phosphate, the rust killer. Safe: Biodegradable, non toxic, non flammable, non hazardous. Effective: Guaranteed to work with any paint system, eliminate time consuming painting steps.