Custom Shop KW901 Restoration Grease, Wax & Silicone Remover — 1 Gallon, Fast-Evaporating Paint Prep Cleaner

KW901 is a fast-acting grease, wax and silicone remover formulated to strip contaminants and leave painted, metal, plastic, epoxy and fiberglass surfaces clean and ready for paint.

Preparing a surface correctly before painting is one of the most important steps to ensure strong adhesion and a smooth finish. Custom Shop's KW901 Restoration cleaner is made for professional shops and serious DIYers who need a reliable panel wipe that dissolves tar, wax, adhesive residue, tree sap and silicones without leaving a film. Packaged in a one-gallon can, KW901 works quickly, evaporates clean, and supports consistent results whether you are doing bodywork, sanding, or final wipe-downs before topcoat application.

How does KW901 remove wax, grease and tar effectively?

KW901 uses solvents chosen to soften and lift common surface contaminants so they can be wiped away instead of being spread. The formula breaks the bond between contaminant and substrate, allowing a lint-free cloth to pick up residues, not smear them across the panel.

• Formulated to dissolve wax, grease, tar, adhesives, tree sap and silicones
• Quick-acting solvents that loosen contaminants for efficient wiping
• Evaporates cleanly to avoid residue that interferes with adhesion

Will this product work on different automotive materials?

Yes — KW901 is safe and effective on a range of surfaces commonly found in automotive work. It’s suitable for use on painted finishes, bare metal, plastics, epoxy coatings and fiberglass when used as directed.

• Safe for painted surfaces before and after sanding
• Compatible with metal, plastic, epoxy and fiberglass substrates
• Intended as a prep step prior to primer or topcoat application

How should I use KW901 for best results during painting prep?

For optimal results, work in a well-ventilated area and use separate clean cloths for applying and removing the product. Apply a moderate amount, allow it to act briefly to loosen contaminants, then wipe with a dry lint-free cloth until the surface appears clean and dry.

• Use a separate wet cloth for application and a separate dry cloth for removal
• Wipe in one direction to avoid recontamination of the panel
• Allow surface to fully evaporate before sanding or applying primer/topcoat

Is KW901 suitable for professional restoration shops and home projects?

KW901 was developed to meet the needs of both professional auto body shops and dedicated DIY restorers. It delivers consistent cleaning performance so paint adhesion and finish quality are easier to achieve.

• One-gallon size for frequent shop use or multiple project panels
• Formulated and produced in the USA by Restoration Shop / Custom Shop
• Designed to reduce static and remove silicone contamination before painting

Who is this for: KW901 is aimed at body shops, restoration specialists, collision repair technicians and experienced DIY auto painters who require a dependable, fast-acting panel wipe to remove wax, grease, tar and silicone residues before primer and topcoat. If you need a product that dries clean, works across multiple substrates and supports repeatable professional results, this one-gallon cleaner is sized and formulated for regular prep-room use.