Horizontal vacuum chemical vapor deposition machine is a coating equipment used for waterproof protection of electronic products. Chemical vapor deposition (CVD) is a process of depositing a 0.1-100um film coating on the surface of a product by means of sublimation pyrolysis of a compound (long-chain polymer material) containing membrane elements in the vacuum reaction chamber where product is placed. After the coating, the electronics will have high-dielectric strength and excellent resistance to high and low temperature(-100-200 degree C), anti-corrosion, acid and alkali resistant, lubricating, resistant to dust, moisture and rust.