iyo inogona kugadzirisa masterbatch uye hupfu hwemavara kune mavara akasiyana-siyana maererano nezvinodiwa nemutengi wechigadzirwa, kuitira kuti ugadzire mavara akasiyana-siyana emucheka wakadhayiwa, uye kutsanya kwemavara kunosvika 4-4.5 giredhi, ine maburi mashoma.