I use Meguiar's products, and they work well (Iron Remover, M122, Ultimate Compound, Ultimate Polish) ....
- Pre-wash / rinse – Foam cannon or hose to loosen dirt.
- Contact wash – Two-bucket method with quality shampoo.
- Decontamination
- Iron remover (highly recommended).
- Tar remover (if needed).
- Clay bar / clay mitt with lubricant.
- Rinse & wash again – Clears clay residue and chemical decon.
- Thoroughly Dry – Microfiber drying towel or blower. Ensure Zed is out of the sun, in a covered area, and cool.
- Panel wipe (M122 Surface Prep or similar) – Removes oils, fillers, residues, ensures bare paint.
- Paint correction / polishing – multi-step (compound → polish). DA polisher recommended
- Final wipe down (M122) – To ensure no polish residue before protection.
- Protection – Ceramic coating.