Ġilda tal-EPU jew tista 'ssejħilha drappijiet tal-ġilda PU ħielsa mis-solvent jew ġilda PU mhux solvent u dan il-materjal huwa ġilda sintetika ta' l-eko-favur. The structure of EPU is stable and with 7-15 years hydrolysis resistance and this new material is environmentally friendly.