Silicone hydrophobic powder, generally abbreviated as SHP, is a versatile chemical additive known for its remarkable water-repellent properties. It is a fine, white powder composed of silicone polymer, a synthetic polymer known for its unique combination of flexibility, stability, and resistance to various environmental factors. Therefore, this fine powdered material can be designed to modify the surface characteristics of various substrates, making them highly resistant to water and moisture. Silicone hydrophobic powder is often used in a wide range of industrial applications (tile grout, waterproof mortar, etc.) to provide waterproofing or water-repellent qualities for materials.