The coating comprises a tough, flexible polyurethane binder and a corrosion inhibiting pigment selected from the group consisting of {HEAD ~ zinc hydroxy phosphite, zinc phosphate, calcium ion} exchanged {TAIL ~ silica}, calcium strontium zinc phosphosilicate 
exchanged
The coating comprises a tough , flexible polyurethane binder and a corrosion inhibiting pigment selected from the group consisting of { HEAD ~ zinc hydroxy phosphite , zinc phosphate , calcium ion } exchanged { TAIL ~ silica } , calcium strontium zinc phosphosilicate
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH