{TAIL ~ The method} typically involves dissolving polyisobutylene in a solvent such as hexane to form a tackifier solution, soaking the substrate in the tackifier to produce {HEAD ~ a preform}, and then drying the preform to produce the cleaning medium 
{ TAIL ~ The method } typically involves dissolving polyisobutylene in a solvent such as hexane to form a tackifier solution , soaking the substrate in the tackifier to produce { HEAD ~ a preform } , and then drying the preform to produce the cleaning medium
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH 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 OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH