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 silica, {TAIL ~ 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 silica , { TAIL ~ 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 OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL