What is paint grip / pre-primed substrate vs mill finish?
Paint grip
- A trade name for a galvanized steel with a bonderized coating making it ready to paint
- Advantage / disadvantages
- Most manufacturers only warrant materials they have painted
- Ready for immediate painting
- Improves life expectancy of the paint due to the paint adhesion
- Regional or project specific application
Pre-primed
- A coil of aluminum or steel that is cleaned, pretreated, and ready to be painted
- Advantages / disadvantages
- Pre-primed can be run through the paint line and have two more coats added
- Primer needs to match manufacturer of that color
- ATAS may not follow this strategy due to our varied paint suppliers
Mill finish
- Mill finish is a coil or finished/formed part that needs to be cleaned, primed and then painted
- Advantages / disadvantages
- Can be coil coated or post painted
- Can easily match primers with manufacturers colors
- Panels must be formed with masking to facilitate forming
- Best practice is for trims to be bent before post painting
