Petroleum asphalt, mbishi zvinhu zvakafara, mitengo yakaderera. Zvisinei, mamiriro ekushanda asina kunaka, akaoma kuvimbisa kunaka, kusvibiswa kwakakomba kwezvakatipoteredza.

Coal tar epoxy, iri nyore kushanda, asi yakareba yakavhara layer inorapwa nekukanganisa kwezvakatipoteredza, yakakodzera basa remumunda, inotevera 10 ℃ yakaoma kuvaka.

Anticorrosive kutonhora matepi, nyore kushanda, asi zvishoma zvakanyanya kunamatira, kushomeka kwemvura kuramba, kuderera kwesimba, iyo yakakura kukanganisa kwezvakatipoteredza.

Epoxy powder corrosion, electrostatic spraying, anti-corrosion material nemhando imwe chete yechubhu frit yakanaka, yakasimba bonding, epoxy powder asi mvura haina kunaka (kunyura kwemvura yakakwira, inosvika 0.83%), kugadzira cathodic kudzivirira kunounza mamwe matambudziko. Saiti appliance zvinodiwa, kushanda kwakaoma, kwakaoma kudzora mhando.

3PE shrink zvinhu, kuvhara kwakasimba kwepombi ngura, kusimba kwemagetsi, kushomeka kwemvura kwakasimba, kugadzikana kwemhando, kuvaka kuri nyore, kushanda, uye kusasvibisa nharaunda. PE kunyura kwemvura yakaderera (isingasviki 0.01%), pamwe chete neyakakura simba epoxy, inopisa inonyunguduka inonamira PE yakaderera mvura yekunyura uye yakanaka kuchinjika, yakakwirira kuvimbika kwekuora, iyo yakashata ndeyekuti: Zvichienzaniswa nezvimwe zvekugadzirisa zvinhu zvinodhura zvakadhura.

Zvimiro zvematepi anotonhora uye 3PE shrink mabhendi ndeaya: kune ese marudzi epombi yekupfekedza zvinhu zvemuviri, nepo imwe nzira inoshanda kune imwechete kana padhuze nepombi yekupfekedza muviri wenyama.