Si loo qiimeeyo tayada substrate-ka loo isticmaalo xaashida birta midabaysan ee qaabaysan, hababka kormeerka ee soo socda waa in la adeegsadaa: Marka hore, hubi in nooca substrate-ku buuxiyo shuruudaha gaarka ah. Waqtigan xaadirka ah, xaashida birta ah ee midabka leh ee tayada sare leh, aluminium-zinc alloy-coated (Al-Zn) ama galvanized (Zn) substrates ayaa ah xulashooyinka la door bidayo: Aluminium-Zinc Coated Substrate: Waxay bixisaa iska caabbinta daxalka sare, taasoo ka dhigaysa mid ku habboon codsiyada dibadda iyo doorashada ugu sareysa ee alaabada dhexe-ilaa-sare. Substrate-Dip Galvanized Substrate: Heer, doorasho kharash-ool ah oo ku habboon buuxinta shuruudaha xaaladaha guud ee shaqada. Substrate-ka-qabow: La'aanta dahaarka ka-hortagga daxalka; sidaas darteed, waxay ku habboon tahay oo keliya deegaanka gudaha ee qalalan, waxaana si adag loo mamnuucay in loo isticmaalo saqafka bannaanka ama codsiyada derbiga dibadda. Alaabooyinka tayada hooseeya waxay inta badan isku dayaan inay ka gudbaan birta qabow-duubay sida birta dahaarka leh ee galvanized ama aluminium-zinc. Tan waxaa lagu ogaan karaa iyadoo la baarayo cidhifyada la jaray ee xaashida: cidhifyada birta qabow-duuban waxay u muuqan doonaan midabka saafiga ah ee birta, halka geesaha galvanized ama aluminium-zinc-ku daboolan ay muujin doonaan daahan alloy silvery-cawlan. Xaqiiji cabbirrada Miisaanka Dahaarka. Miisaanka dahaarka ayaa si toos ah u go'aamiya iska caabbinta daxalka ee substrate-ka. Waxaad codsan kartaa warbixinta kormeerka dahaadhka si aad u xaqiijiso u hoggaansanaanta heerarka ku habboon codsigaaga gaarka ah: