The polyurethane composition is formed from the reaction product of at least a prepolymer of {TAIL ~ a polyisocyanate} and {HEAD ~ a polyol}, and a diamine curing agent 
The polyurethane composition is formed from the reaction product of at least a prepolymer of { TAIL ~ a polyisocyanate } and { HEAD ~ a polyol } , and a diamine curing agent
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH