Clay bars
When to clay after washing, which lubricant to use, and when a piece must be discarded.
What is a clay bar?
A clay bar is a clay-like detailing tool used with its specified lubricant to mechanically remove contamination bonded to the paint surface after washing. It does not repair scratches or damage within the paint.
First wash away loose dirt, then inspect for remaining bonded contamination. Visible deposits and a rough feel are clues, but not every rough surface has contamination that clay can remove.
Ask whether there is contamination left to remove. You can skip clay on an already clean, smooth surface. Do not choose it automatically just because polishing is planned.
When to consider it—and when to stop
- Bonded contamination remains after washing: consider clay after checking the contamination, surface and product's allowed uses.
- The surface is clean and smooth: claying is not compulsory. Check the preparation needed for the next care step.
- Clay catches, fine marks appear or gloss changes: stop and reassess lubrication, the clay's working face and paint condition. Do not keep rubbing.
- Matte paint, film or a sensitive finish: check the surface and product care instructions instead of treating it like ordinary glossy paint.
Do not drag clay over dry bird droppings. Contamination that needs softening and washing should be removed that way first.
Use the specified lubricant on a small area
- Wash and confirm suitability. Remove loose dirt and grit. Check that the surface is allowed and do not begin on hot paint.
- Prepare a clean piece and specified lubricant. Form a clean, flat working face. Follow the product's lubricant and dilution requirements; do not substitute an arbitrary shampoo or quick detailer.
- Check gently on a small area. Keep the surface and clay adequately lubricated. Do not increase pressure if it catches. Follow the product's guidance on movement and working area.
- Inspect the working face frequently. Do not drag a dirty face across the paint. Fold and knead to expose a clean face; replace the piece if that is no longer possible.
- Remove residue and reinspect. Clean off lubricant as directed. If roughness or marks remain, reassess contamination and paint condition instead of repeating blindly.
Reuse and disposal
Discard a piece dropped on the ground. Do not wash it or cut away its outer layer and reuse it. Dividing the bar beforehand and keeping spare pieces clean can reduce the amount lost if one falls.
Even without a drop, replace a piece if kneading cannot produce a clean, flat face or if foreign material remains visible. Judge the current face rather than a fixed number of cars. Do not transfer clay-bar disposal rules to synthetic clay mitts or towels; follow their own cleaning and replacement instructions.
Iron removal and polishing are separate decisions
An iron remover and a clay bar are different tools. Decide whether iron treatment is needed. If used, complete the required rinsing and residue removal, then assess whether suitable bonded contamination remains. Do not mix iron remover and clay lubricant yourself.
Claying does not automatically mean every car needs abrasive polishing. Inspect the finish of a small area first and choose further work based on remaining marks and the finish you want. When preparing for a coating, also follow that coating's preparation instructions.