Tepi ya duct, wotchedwansotepi ya bakha, ndi nsalu-kapena scrim-back-backed pressure-sensitive tepi, nthawi zambiri yokutidwa ndi polyethylene.Pali mitundu yosiyanasiyana yomanga yomwe imagwiritsa ntchito zomangira ndi zomatira zosiyanasiyana, komanso mawuwo'tape tape' nthawi zambiri amagwiritsidwa ntchito kutanthauza mitundu yonse ya matepi ansalu amitundu yosiyanasiyana.