PVC hais kuj yog ib hom yas hais. Cov yas hais txog cov yas yas, uas feem ntau muab faib ua ntau dua 200 yam thiab ntau txhiab hom raug faib ua ob pawg. PVC hais txog cov yas uas ua los ntawm pvc! PVC yog polyvinyl chloride yas nrog cov xim ci, tiv taus xeb, ua haujlwm ntev. Txij li qee cov khoom siv tshuaj lom neeg xws li cov yas yas thiab cov tshuaj tiv thaiv kev laus tau ntxiv rau hauv cov txheej txheem tsim khoom, PVC feem ntau tsis khaws zaub mov thiab tshuaj.

Chlorinated paraffin tsis zoo hauv cov cua sov ruaj khov, thiab nws tau decomposed los ntawm cua sov kom tso cov pa roj carbon dioxide, thiab cov xim dhau los ua daj, uas ua rau cov xim ntawm cov khoom siv polyethylene kom tob dua, thiab cov khoom siv dag zog thiab cov khoom siv hluav taws xob rwb thaiv tsev raug txo.

 HYW-1 hom tshuaj chlorinated paraffin, cua sov ua kom sov, ua kom muaj cua sov ruaj khov, ua haujlwm tau zoo nrog chlorinated paraffin thiab PVC, HYW-zoo, tsis muaj kev cuam tshuam rau PVC txheej txheem txheej txheem, tsis muaj kev puas tsuaj rau kev ua tiav ntawm PVC tiav.