Ichi chigadzirwa chinotora akawanda-layer chimiro, ine yakasimba yakakwirira barriers kuita. Zvinhu zviri pakati pebhegi inylon. Iyo ine yakakwira kusimba simba, asi zvakare ine yakanaka yekupisa kupisa, kutonhora kuramba, mafuta kuramba uye organic solvent kuramba, kupfeka kuramba, kwakanakisa puncture kuramba.