Water repellent water repellent product is a non-toxic, harmless, environmental protection product. When the spray brush is on the surface of the object, it can infiltrate into the object quickly, and produce dehydration hinge, reaction and conjunctiva with its interior, forming reaction tension. This kind of tension causes the object to form an interface protective layer of water repellent effect of lotus leaf, which is breathable, hydrophobic and waterproof. The moisture in the inner layer can radiate outwards, while the external rainwater will not flow into or penetrate into the inner layer, just like the rainwater falling on the lotus leaf, without leakage or trace. Not only impervious and leakproof, but also moisture-proof, mildew proof, acid and alkali resistant, corrosion resistant, high and low temperature resistant, color retaining, anti-aging, anti powdering and so on.