2K Kwik Prime Gray, 1-Gallon Kwik Prime is a two component primer surfacer that can be applied direct to metal surfaces..It is quick drying and easy to sand wet or dry..Kwik Prime provides corrosion protection along with excellent fill and build properties..This unique primer provides improvements in productivity and reduces cycle times while providing significant labor and material savings..May be tinted. Product Type: Primer. Activator/Hardner used: 6454 6441