Waliwo ebika bya kapiira bingi ku katale, gamba nga kapiira ak’obutonde, styrene-butadiene rubber, butyl rubber, nitrile rubber, butadiene rubber ne recycled rubber, n’ebirala Ebika bya kapiira eby’enjawulo bikola ebintu bya kapiira eby’enjawulo, mu nkola y’okufulumya ebintu ebikolebwa mu kapiira, gamba ng’okukozesa obubi ebintu ebiyamba kijja kuleeta okufiirwa okuteetaagisa ku kapiira ebitongole ebikola emirimu. Ennaku ntono emabega, kasitoma yajja okubuuza lwaki okukola ebintu bya kapiira nga bifuuyira bbululu, ekiva ku kulonda obubi kapiira oba enkola etali ntuufu, bayinginiya baffe bwe batyo okwanjula eri bakasitoma, bbululu w’okufuuyira okwa bulijjo okusinga kuva ku asidi omungi, waliwo emisango egiwerako.

1, plasticizer: plasticizer eyongerwako mu kukola ebintu bya kapiira ebiddamu okukozesebwa ebadde oxidized nga tannatabula, kale mu vulcanized rubber ejja kufuuyira bbululu; amafuta amanene aromatic hydrocarbon softening oil (nga rubber softening oil, n’ebirala) agattako ekisusse era kyangu okufuula ebintu ebikolebwa mu kapiira okufuuyira bbululu.

2, carbon black: mu kukola carbon black carbon black mu molekyu ennene eza hydrocarbons eziwunya teziyokebwa mu bujjuvu, okugula carbon black bwetyo eyongerwa ku bikolebwa mu kapiira kapiira kijja kuba kyangu okufuuyira bbululu.

3, antioxidant: mu kukola ebintu bya kapiira okugattako n’okukozesa antioxidant okusinziira ku kigerageranyo kya kapiira ne langi y’ebintu ebikolebwa mu kapiira, antioxidant okwongera langi enzirugavu ennyo nakyo kijja kuleetera ebintu bya kapiira okufuuyira bbululu, kale omuwendo ogusaanira ogw’ekiziyiza obuwuka.

4, ebbugumu lya vulcanization: olw’ebintu ebikolebwa mu kapiira okugattako ebirungo ebya bbululu ebyangu, ng’oggyeeko ebbugumu ly’okutabula liri waggulu nnyo, kyangu okufuula ebintu ebifuuyira vulcanized okufuuyira bbululu.

5, okutabula kapiira uneven: mu kwongerako ebintu ebiyamba okutabula olw’obutabula obutafaanagana bwa kapiira nga bigattiddwa wamu n’obungi bw’ebintu ebimu ebiyamba biba waggulu nnyo kijja kuleetera kungulu kw’ebintu ebiyambako okufuuyira bbululu.

Weewale ebintu ebikolebwa mu kapiira okufuuyira omusota gw’enkuba: enkola ya carbon black okubeera entuufu nayo; enkola ya vulcanization okubeera esukkiridde katono, gezaako okussaamu giriisi entono, resin, stearic acid, n’ebirala.