Exterior 450 is a clear-drying finish suitable for exterior surfaces, including fences, patio furniture, garage doors, entrance doors and windows. Exterior 450 has UV absorbers to stabilize the finish and built-in mildewcide to retard mold and mildew.
All wood projects require preparation sanding. If you skip this critical step, your finish may fail.
Preparation for Raw Wood ProjectsSee our video: How to Prep Sand Raw Wood
General Finishes Exterior 450 Topcoat Application Steps
Cure TimeWater-based finishes cure and harden for full use after 21 days in ideal conditions. Avoid placing heavy objects on surfaces that have not completely cured. Treat gently, and do not clean with commercial products during the curing period.
WARNING: We do not recommend Exterior 450 stains or topcoats for exotic woods, ipe, teak or other dense, oily woods.
NOTE: Exterior 450 is designed to let the water permeate the finish; as it dries, the water releases back out to allow the finish to tighten down again. Temporary cloudiness may occur as the finish dries.
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