A method of coating an electroplating rack used for supporting non-conductive substrates during a plating process. The method comprises the steps of contacting at least a portion of the electroplating rack with a plastisol composition, the plastisol composition having dispersed therein an effective amount of an additive having the structure: wherein R, R′, R″ and R′″ are either the same or are independently selected from the group consisting of benzyl, substituted benzyl, phenyl or substituted phenyl; or wherein R, R′, R″ and R′″ are either the same or are independently selected from C1-C10 alkyl (either straight or branched chain), benzyl, substituted benzyl, phenyl, or substituted phenyl and M is a divalent metal cation, preferably selected from the group consisting of nickel, copper and zinc; and heating the electroplating rack with the plastisol composition thereon to a suitable temperature and for a sufficient time to cure the plastisol and form a solid ins
