A predetermined amount of the polymer asphalt master batch is blended with {HEAD ~ a predetermined amount} of the asphalt cross linking agent blend to form {TAIL ~ a PMA blend} 
A predetermined amount of the polymer asphalt master batch is blended with { HEAD ~ a predetermined amount } of the asphalt cross linking agent blend to form { TAIL ~ a PMA blend }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL