Spraymax 3680404 3 in 1 Primer Shade Gray is used for repairing small damaged areas/spot repairs and painting parts, as an anti-corrosion primer or primer surfacer. Can be used on galvanized steel, aluminum, steel,  GRP, and polyester surfaces. (Do not coat with polyester or EP-products).

Application Notes:

• Shake can thoroughly for 1-2 minutes
• Apply first coat adjust variator and perform a test spray before applying
• Allow to flash 5-10 minutes
• Apply 2-3 coats
• Sand wet or dry (manually) with 400 grit to 500 grit paper