PRODUCT ADVISORY: Volcanic Ashfall
Volcanic ashfall is made up of minerals and glass fragments. It is advisable to hose off the particles with tap water spray (not power spray). Regular waterless cleaning is not advisable under this scenario.
After you completely rinse-off your car, apply Quickie Waterless Carwash or any reputable car wax brand with HIGH-ALKALINITY for surface lubrication and an extra layer of acid protection. DRY IT OFF with a towel ASAP.
I repeat. DRY YOUR CAR with a towel after cleaning. Volcanic ash becomes highly acidic (100 times more acidic than acid rain) when mixed with water.