A highly durable, solvent-borne, highly translucent satin woodstain from Sikkens. Cetol Filter 7 is a highly translucent satin exterior woodstain for windows and doors. It can be used as a maintenance coat for existing woodstain systems or over a base stain of Cetol HLS on new or bare timbers. Its advanced UV light absorbers provide superior protection from the damaging effects of sunlight on timber. For use on exterior softwood and hardwood joinery, windows and doors, but not suitable for decking or other areas subject to high levels of abrasion.A highly durable, solvent-borne, highly translucent satin woodstain from Sikkens, light oak in colour. Cetol Filter 7 is a highly translucent satin exterior woodstain for windows and doors. The can be used as a maintenance coat for existing woodstain systems or over a base stain of Cetol HLS on new or bare timbers. Its advanced UV light absorbers provide superior protection from the damaging effects of sunlight on timber. For use on exterior s