I-1) Yeyona nto iphambili yefilimu epholiyimiweyo yobushushu obuphezulu, i-resin, iplastiki yobunjineli njengemibhobho: I-Polyimide, i-polyether imide, i-polyester imide, i-polymaleimide, i-poly aryl amide 2)Yimathiriyeli ye-3,3',4,4'-Tetraaminodiphenyl Etere eyona imonoma yoluhlu lwezinto ezinevumba elimnandi ze-heterocyclic ezimelana nobushushu bepolymeric. 3) Yimpahla yokusebenza okuphezulu kokumelana nobushushu be-epoxy resin, i-polyurethane kunye nezinye izinto ze-polymer kunye ne-agent edibanisayo.