High hydrogen content silicone oil, due to its unique molecular structure and chemical reaction properties, has become a highly efficient waterproofing agent widely used in both industrial and civilian fields. Its waterproofing efficacy stems from its precise mechanism of action and adaptability. 
From a principle perspective, the molecules of high hydrogen content silicone oil are rich in active Si-H bonds. Under the action of a catalyst, they can undergo chemical reactions with polar groups such as hydroxyl groups on the surface of the substrate, forming a strong chemical bond. At the same time, its molecular chains can be arranged directionally, and the silicon-oxygen main chain forms a dense hydrophobic film, like putting on a "protective coat" for the substrate, preventing water molecules from penetrating. This chemical film formation rather than physical adhesion characteristic makes the waterproof effect more durable. 
In application, it is compatible with various substrates. When processing textiles, it can penetrate the interior of the fibers to form a water-repellent layer, retaining the breathability of the fabric while achieving waterproof functionality; in the construction field, it can penetrate the surface of concrete, fill micro-pores and form a hydrophobic structure, enhancing the impermeability and durability of building materials; for leather, paper, and other materials, after treatment, it can significantly enhance their waterproof and moisture-proof performance, prolonging their service life. 
Compared with traditional waterproofing agents, high hydrogen content silicone oil also has advantages such as resistance to high and low temperatures, anti-aging, and no pollution. It can maintain stable waterproof efficacy in harsh environments and has become the preferred material for waterproof treatment. However, it is necessary to control the dosage and reaction conditions to achieve the best waterproof effect.