For exterior, use Metallic sealer.

Use only in well ventilated areas. Ensure surface is clean and dry. Shake can well before use and between applications. Several thin coats are recommended rather than one heavy coat. The use of a Plasti-kote primer is recommended on bare surfaces. Before applying spray on an inconspicuous area to ensure compatibility and suitability. Use Metallic Sealer (628) to seal and protect the surface if the object will be handled frequently or is positioned outside.