Epoxy Fast Dry 2.1 low voc DTM Primer & Sealer Gray Gallon Kit, SMR-260G/261 Easy 4:1 mix primer with optional 5-10% reduction with 0 voc reducer (SMR-0075) Can be used as a primer and a sealer Great adhesion to Steel, Aluminum, Fiberglass, Body fillers and Existing finishes Lays down super smooth at 4:1 or with optional 5-10% 0 voc reducer (SMR-0075) Excellent adhesion and corrosion resistance