Ifu ya PVC: polivinili shloridi mu duce duto, ikorwa muri vinili shloridi mu mazi hamwe na potasiyumu persulifate. Ni polimeri mbisi ivangwa n’ibituma idononekara bikanyuranamo n’ibindi byongerwamo kugira ngo hakorwe imiyoboro, amabati n’ibyuma byoroshye bya PVC.