Nubwoko bwa rosin pentaerythritol resin yabugenewe kubwinganda zishyushye zishushe.Ifite ibyiza byamabara yoroheje, koroshya cyane, ubukonje bwinshi no kurwanya ubushyuhe bwiza.By'umwihariko bikwiranye na EVA ishyushye yometse hamwe nubushyuhe bushyushye hamwe nizindi nganda.