Krylon Primers suitable for various surfaces before use of Krylon spray finishes or other spray paints. For superior results use primers where extra adhesion may be required. Krylon Plastic primer can be used as a prep coat underneath Krylon Fusion or other aerosol lines. Other primers can also be used on plastic but must leave extra curing time for superior adhesion. Must apply to clean non greasy surfaces for adequate adhesion and maximum durability.