anes ▁shown ▁to ▁have ▁trans ient ▁properties ▁and ▁which ▁can ▁thus ▁be ▁re process ed ▁or ▁rec yc led . ▁ ▁F iber - re in for ced ▁materials ▁When ▁comp ounded ▁with ▁fib ers , ▁therm os et ting ▁res ins ▁form ▁fi ber - re in for ced ▁polym er ▁compos ites , ▁which ▁are ▁used ▁in ▁the ▁fabric ation ▁of ▁factory - fin ished ▁struct ural ▁composite ▁O EM ▁or ▁replacement ▁parts , ▁and ▁as ▁site - app lied , ▁c ured ▁and ▁finished ▁composite ▁repair ▁and ▁protection ▁materials . ▁When ▁used ▁as ▁the ▁b inder ▁for ▁aggreg ates ▁and ▁other ▁solid ▁fill ers , ▁they ▁form ▁partic ulate - re in for ced ▁polym er ▁compos ites , ▁which ▁are ▁used ▁for ▁factory - app lied ▁protect ive ▁co ating ▁or ▁component ▁manufact ure , ▁and ▁for ▁site - app lied ▁and ▁c ured ▁construction , ▁or ▁maintenance ▁purposes . ▁ ▁Ex amples ▁ ▁Poly ester ▁res in ▁fi berg lass ▁systems : ▁sheet ▁m old ing ▁comp ounds ▁and ▁bulk ▁m old ing ▁comp ounds ; ▁fil ament ▁w inding ; ▁wet ▁lay - up ▁l am ination ; ▁repair ▁comp ounds ▁and ▁protect ive ▁coat ings . ▁ ▁Poly ure th anes : ▁ins ulating ▁fo ams , ▁mat tr esses , ▁coat ings , ▁ad hes ives , ▁car ▁parts , ▁print ▁roll ers , ▁sh oe ▁sol es , ▁flo oring , ▁synth etic ▁fib ers , ▁etc . ▁Poly ure th ane ▁polym ers