Coil ya aluminiyumu isize amabara nayo yitwa Pre-Pained aluminium coil.Nkuko izina ribigaragaza, ni ugushushanya no gusiga amabara hejuru ya aluminium substrate.Bikunze gukoreshwa ni fluorocarubone ibara ryometse kuri aluminium coil na polyester ibara ryuzuye ibara rya aluminium.