--- I-resins esekwe emanzini ifumana i-traction kumzi mveliso weekhemikhali, ngakumbi kummandla we-resins eyenziweyo kunye ne-fibers. Ezi zinto zenziwe kusetyenziswa amanzi njengesinyibilikisi esiphambili, engaphuhlisi kuphela ukuzinza kokusingqongileyo kodwa ikwaphucula iimpawu zabo zokuqhubeka. Ngokungafaniyo ne-resins esekwe kwisinyibilikisi yesinyibilikisi, i-resins esekwe emanzini inciphisa i-emi