Two-Bucket Wash Kit

One bucket of soapy water, one of clean rinse water, each with a grit guard at the bottom (to trap the dirt you scrub off). Dip the mitt in soap, wash a panel, rinse the mitt in the rinse bucket (the dirt drops to the guard), reload in soap. The wash water stays clean; the dirt never goes back on the paint. It is the swirl-prevention foundation.

It sprays a thick layer of foam that dwells on the paint, lifting the loose dirt before you touch it with the mitt — the pre-soak that reduces the scratching the mitt would otherwise do. Less dirt on the paint when the mitt arrives means fewer swirls. A pressure washer and a foam cannon are the modern wash upgrade.

The fibers trap dirt away from the paint surface, where a cotton towel would drag the dirt across it (the swirls). Plush microfiber mitts and towels are softer and safer than any alternative. Wash them separately (no fabric softener — it ruins the grip) and dry on low. A clean microfiber is the detailer's religion.

Hot paint and hot water dry the soap and the water onto the surface before you can rinse or dry — water spots (mineral etching) and soap film bake in. Wash in the shade or the early morning, keep the paint cool, and work panel by panel so nothing dries on it. The sun is the detailer's enemy; the shade is the shop.