Ulusi wa ulusi umabwera m'mitundu iwiri yayikulu: Ulusi wopangidwa ndi chingwe chimodzi chosalekeza umadziwika kuti ulusi wa monofilament. Ulusi wa monofilament umagwiritsidwa ntchito kaŵirikaŵiri m’nsalu za m’mafakitale, ulusi wosokera, zingwe zausodzi, ndi zinthu zina zimene zimafunikira mphamvu ndi kulimba.
Multifilament ulusi: Mtundu umenewu umapangidwa ndi ulusi wambiri womwe wapindidwa kapena kusonkhanitsidwa kukhala chingwe chimodzi. Silika, poliyesitala, nayiloni ndi zina mwa zinthu zimene zingagwiritsidwe ntchito popanga ulusi wambirimbiri.

Amagwiritsidwa ntchito pafupipafupi pamafakitale monga zingwe ndi maukonde komanso nsalu monga makapeti, upholstery, ndi zovala.
Poyerekeza ndi ulusi wopota, ulusi wa ulusi umapangitsa kuti ukhale wosalala, umakhala wochepa, komanso umawonjezera mphamvu. Kuphatikiza apo, nthawi zambiri amakhala ndi makulidwe osagwirizana komanso mawonekedwe. Kuphatikiza apo, ulusi wa ulusi ukhoza kupangidwa kuti ukhale ndi makhalidwe ena monga kusinthasintha, kuwotcha chinyezi, kapena kukana moto, zomwe zimawayeneretsa ntchito zosiyanasiyana.