Custom Shop automotive wax and grease remover KW901, 1 Quart — fast‑evaporating panel prep for paint and repair

Custom Shop KW901 is a fast‑acting grease and wax remover formulated to dissolve surface contaminants so painted panels are wiped clean and ready for sanding or topcoat.

Clean, contaminant‑free surfaces are the foundation of any successful auto paint or repair job. KW901 is designed to remove common residues — including grease, wax, tar, adhesive, tree sap and silicones — from painted panels, metal, plastic, epoxy and fiberglass. It evaporates quickly without leaving a film so coatings can bond more reliably, and it’s supplied in a convenient one‑quart can for shop or garage use.

How does KW901 prepare panels before painting?

KW901 breaks down oils and surface deposits that prevent primers and topcoats from adhering properly. Use it after final sanding and before primer or paint to reduce lift, fish eyes and poor adhesion. It dries fast and leaves minimal residues when used with proper wiping technique.

• Dissolves wax, grease, tar and silicone contaminants
• Safe on painted finishes, metals, plastics, epoxy and fiberglass
• Dries quickly — formulated to leave no tacky film
• Use a wet cloth then a separate dry cloth for best removal

When should I use KW901 during the repair process?

Apply KW901 both before bodywork and prior to final painting. After sanding, wipe panels to remove sanding oils and particulate; before paint, use as a final panel wipe to remove fingerprints, shop films and handling residues. It’s also useful between coats if contamination is suspected.

• Prepping panels after sanding and before primer
• Final panel wipe immediately before topcoat application
• Cleaning parts during restoration or assembly stages
• Use between coats if a contamination source appears

What surfaces and jobs is KW901 suitable for?

KW901 works across a wide range of substrates encountered in automotive and restoration work. It is safe for use on cured painted surfaces, bare metal, plastic components, epoxy repairs and fiberglass bodywork. Avoid prolonged exposure on sensitive plastics or decals and always test in an inconspicuous spot when in doubt.

• Painted automotive panels and refinishes
• Metal body panels and structural parts
• Plastic trim, bumpers and housings (test first)
• Epoxy and fiberglass repair areas prior to topcoat

How should I apply KW901 safely and effectively?

For best results, work in a well‑ventilated area and use clean, lint‑free cloths. Wipe the surface with a cloth lightly dampened with KW901, then follow immediately with a separate dry cloth to pick up dissolved contaminants. Replace cloths frequently to avoid re‑depositing removed materials.

• Use a clean wet cloth and a separate dry removal cloth
• Work small areas and replace cloths as they become soiled
• Allow solvent to flash off before priming or painting
• Follow standard shop PPE and ventilation practices

Who is this for: KW901 is made for professional auto body shops, restoration specialists and DIY enthusiasts who need a reliable, fast‑drying panel wipe to clear grease, wax and other surface contaminants. If you want consistent adhesion and a cleaner, more predictable paint result on cars, motorcycles, boats or custom parts, this one‑quart cleaner is formulated for that purpose.