1. There is no unified definition of waterproof materials. The continuous update of waterproof technology has also accelerated the diversification of waterproof materials. Generally speaking, it prevents rainwater, groundwater, industrial and civil water supply and drainage, corrosive liquids, moisture in the air, Materials that invade buildings such as steam are basically collectively called waterproof materials.

2. Waterproof coating is also a kind of waterproof material.

3. Waterproof coating refers to a coating that can prevent rain or groundwater from leaking.

4. There are three main types of waterproof materials: waterproof membranes, which are mainly used in engineering construction, such as roofs and exterior walls; polyurethane waterproof materials, which contain volatile toxic gases, have strict construction requirements and are expensive; new polymer cement-based waterproof materials, The material is composed of organic polymer liquid material and inorganic powder. It combines the characteristics of high elasticity of organic materials and good durability of inorganic materials. After coating, it forms a high-strength and tough waterproof coating film, which is a common choice material for home defense.

5. Waterproof coating can be divided into emulsion type, solvent type, reactive type and modified asphalt according to coating state and form.