Rubber sheet that is resistant to expansion, contraction, softening, or cracking in acidic or alkaline media.

Acid and alkali-resistant rubber sheet refers to rubber plates that are not easily expanded, contracted, softened, or cracked in acidic or alkaline media, primarily made of三元乙丙橡胶（EPDM）. This material possesses properties of resistance to aging, ozone, and chemical corrosion, and can maintain stable performance when in contact with alkaline solutions, diluted acids, and ketones [1]. Its working medium includes dilute acids, dilute alkalis, strong acids, strong alkalis, and other chemical substances, with thickness ranging from 1 to 80mm and width up to 2000mm.