Rubber Sheets Resistant to Acid and Alkali, which are not prone to expansion, contraction, softening, or cracking in acidic or alkaline mediums, are primarily made of三元乙丙橡胶（EPDM）. This material features resistance to aging, ozone, and chemical corrosion, maintaining stable performance when in contact with alkaline solutions, diluted acids, and ketones [1]. The working medium includes dilute acids, dilute alkalis, strong acids, strong alkalis, and various chemical substances, with thickness ranging from 1 to 80mm and widths up to 2000mm.