Zinc-alum Tank are equipped with Internal Liner, the liner is the part which work likes internal Membrane to protect water to be in direct contact with the metal sheets. Due to this feature the internal liner membrane offers versatile characteristic to offer a tank to be Food grade/Non-food grade.
The Internal Liner material is available in a range of 550 GSM to 1360 GSM.
Also, there are a number of Liner material used depending on the application and requirement of clients, some of them are PVC, HDPE, PE etc.