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General Finishes 450 Exterior Waterbased Topcoat

Exterior 450 Topcoat a clear-drying finish suitable for vertical exterior surfaces, such as fences, patio furniture, garage doors and entrance doors. It is not recommended as a deck finish.


Exterior 450 is fortified with UV absorbers to stabilize and protect the integrity the finish*, and built-in mildewcides to slow mold and mildew growth. It performs well as a clear coat or as an optional topcoat over darker colors General Finishes Milk Paint. Do not use over light or white paints as yellowing may occur. *The UV additive in 450 Clear will protect the integrity of the film, but will not prevent the wood from changing color from sunlight. 

General Finishes 450 Exterior Waterbased Topcoat

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  • Make sure you give this product a good stir before using.  It will appear milky when wet but will dry clear.