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Valorem VSS-303/304 Surfacer Sealer LV (low VOC) is a high-solids urethane surfacer and sealer. Depending on the mixing ratio used, VSS Surfacer Sealer LV can be either used as a high build sanding surfacer or wet-on-wet primer sealer. VSS Surfacer Sealer LV is available in white and black which may be intermixed for fast topcoat coverage and versatility. VSS Surfacer Sealer LV provides a smooth and stable substrate, with exceptional coverage and holdout, for a first-rate refinish appearance.