3.5 Enamel Sealer 5255 is a quick drying, enamel sealer designed to be applied over properly prepared bare metal or prepainted substrates. 3.5 Enamel Sealer provides good topcoat gloss holdout, adhesion to properly prepared bare metal or prepainted sub-strates, good corrosion resistance over properly prepared steel, and fills minor surface scratches. It can also be used as a shop coatprimer to protect vehicles or parts from the elements upon outside storage