Solarez UV Cure Grain Filler & Sealer (4 Oz) Solarez UV Cure Grain Filler & Sealer Cures by chemical reaction and requires less build-up to fill open grain woods. Reacts not by evaporation but by photochemical reaction in seconds, not hours. Less shrinkage than solvent-borne or water-borne evaporatives. Cures exceptionally dry unlike other UV cure resins that cure tacky.