Guhitamo impapuro zo gusohora cyangwa firime substrate no kurekura bigira ingaruka zitaziguye mububiko no gukuramo imikorere ya PTFE yubushyuhe bwo hejuru. Iyi ngingo igereranya PET na kraft impapuro substrates hamwe na silicone na fluorine yo kurekura, byerekana uburyo bwiza bwo guhuza ibishishwa bya zeru bisigaye kandi byizewe igihe kirekire.