Slurry famfo polyurethane spares aka yi da Polyurethane (PU a takaice), kuma suna da mafi yi fiye da na halitta roba spares a cikin slurry sufuri, musamman a cikin m yanayi tare da lalata da abrasive.

Idan aka kwatanta da kayan roba na halitta, kayan PU yana da waɗannan fa'idodi:

Faɗin taurin- gaɓar A 10 - gaɓar D 64;

Kyakkyawan juriya na lalacewa tare da tsawon rayuwar aiki;

Kyakkyawan juriya na hydrolysis, mai, acid da alkali juriya;

Kyakkyawan sassaucin ra'ayi, juriya mai tasiri da damuwa;

Low gogayya coefficient

An tabbatar da cewa rayuwar aiki naPUya fi tsayi fiye da kayan Rubber don sau 3 ~ 5, wanda ya rage yawan sauyawa da al'amurran da suka shafi yayin yin famfo.