| Wash Material |
Industry term for cloth used for cleaning in a friction wash. |
| Water Hardness |
Soluble metal salts, (principally those of calcium and magnesium, and sometimes iron and manganese) that when present in water in sufficient amounts create cleaning problems. These metal salts remain on a vehicle after the water evaporates leaving white spots. |
| Wax Arch |
Device for applying wax to a vehicle's top and sides as it passes through a wash bay. |
| Weep System |
A system using dripping water to prevent freezing in hoses in cold climates. |
| Wetting Agent |
A substance that reduces the surface tension of a liquid, causing the liquid to spread across or penetrate more easily the surface of a solid. |
| Wheel and Tire Chemical Prep Applicator |
Device for spraying cleaning solution onto wheels and tires. |
| Wraparound Washers |
Rotating brushes attached to knuckling arms for cleaning the front, sides and rear of vehicles. |