Urupapuro rwo kumanika, ruzwi kandi nka mastique cyangwa damping block, ni ubwoko bwibikoresho bya viscoelastic bifatanye hejuru yimbere yumubiri wikinyabiziga, cyegereye urukuta rwicyuma cyumubiri wikinyabiziga.Ikoreshwa cyane cyane kugabanya urusaku no kunyeganyega, ni ukuvuga ingaruka zo kugabanya.Imodoka zose zifite ibyapa bimanika, nka Benz, BMW nibindi bicuruzwa.Byongeye kandi, izindi mashini zikenera gukurura no kugabanya urusaku, nk'imodoka zo mu kirere n'indege, nazo zikoresha plaque.Rubber ya Butyl ikora icyuma cya aluminiyumu kugirango ikore ibikoresho byo gusibanganya ibinyabiziga, biri mu cyiciro cyo gutembagaza no kwinjiza ibintu.Umutungo muremure wa butyl reberi ituma igabanuka kugirango igabanye imiraba.Mubisanzwe, urupapuro rwicyuma rwibinyabiziga ni ruto, kandi biroroshye kubyara kunyeganyega mugihe utwaye, gutwara umuvuduko mwinshi no kugongana.Nyuma yo kumanura no kuyungurura reberi itonyanga, imiterere yumuraba irahinduka kandi igacika intege, ikagera ku ntego yo kugabanya urusaku.Nibikoresho bikoreshwa cyane Imodoka ikoresha amajwi yimashini.