Ultra® Clear Conversion Varnish Sealer is formulated to be used with Ultra® Clear Conversion Varnish Topcoats. This product features excellent flow, build and sanding properties. Before use it must be catalyzed at a rate of 4 oz. per gallon with M615-701 catalyst. Ultra® Clear Conversion Varnish Sealer is a high solids-low viscosity formula that enables users to achieve the best flow and build without reduction. 550 VOC Compliant