Bare metal surfaces should be cleaned with NS50 PreClean. This is an alkaline water-based cleaner that will remove contaminants and activate the surface for a good bond.
Plastics, polymers, paints, glass and ceramics can be cleaned using isopropyl alcohol. In all cases, the surface should be completely dry and free of lint or particles prior to coating.
Lint free or clean-room wipers are recommended when cleaning.