Uru ngwaahịa:
Polyethylene waxnwere ezigbo mma n'isi, etiti na mbubreyo lubrication, ma e jiri ya tụnyere obere polymer wax, ọ nwere mma rheological Njirimara na-eri-irè uru;na waxna-arụ ọrụ nke mgbasa ozi, nguzogide ntu na nkwụsi ike na mkpuchi ntụ ntụ.