House of Kolor KC20 Post Sanding Cleaner is a professional automotive surface preparation cleaner formulated to remove sanding dust, residue, oils, and light contaminants after sanding and before painting. It helps create a clean surface that promotes superior adhesion for primers, sealers, basecoats, and clear coats while reducing the risk of paint defects. Ideal for collision repair, vehicle restoration, and custom paint projects, KC20 is trusted by professional body shops and automotive painters to deliver consistent, high-quality refinishing results.