MP-550 is a two-part primer that chemically protects against the corrosion process. Recommended for protecting bare metal, galvanized steel and aluminum, MP-550 gives medium film build to help eliminate imperfections and can be lightly sanded.
What: General purpose urethane primer grey color.
Mix: 4:1 with activator.
Application: 2-3 coats with primer gun.
Time: Dry to sand in about 45 - 60 minutes per layer.
Recoat: Topcoat with any Matrix System brand topcoat.