Water-resistant silica alumina gel is a white solid with excellent water resistance and durability, making it resistant to breakage. It can be used independently in conditions with high levels of free water (liquid water) and achieve low dew points. With low regeneration breakage rates and a long service life, it is often used as a protective layer for regular silica gel and silica-alumina gel. This material is mainly applied in air drying during air separation processes, acetylene adsorption in the preparation of liquid air and liquid oxygen, as well as in drying compressed air and various industrial gases. It also serves as a liquid adsorbent and catalyst carrier in industries such as petrochemicals, power generation, and brewing.