IP67 Waterproof Coating via Vacuum Deposition is a technology that combines physical structural protection with a nano-scale surface coating to safeguard electronic products against water and dust. · IP67: This is an International Protection rating. IP stands for "Ingress Protection". The first digit 6 denotes complete protection against dust (dust-tight). The second digit 7 means the device can be immersed in water up to 1 meter deep for 30 minutes without harmful effects. · Vacuum Deposition / Plating: This is a process conducted in a high-vacuum chamber where specific materials (e.g., nano-grade waterproofing agents) are vaporized through physical methods (like evaporation or sputtering) and then condense uniformly onto the surface and internal crevices of the product, forming an ultra-thin protective film. This film does not alter the product's appearance or structure but effectively repels water, preventing it from entering in liquid form. · Combined Effect: This technology first relies on the product's physical structure (e.g., gaskets, precision housing) for basic protection. The vacuum deposition process then adds an "invisible" barrier at the component level. This coating makes the circuit board non-wetting, meaning that even if minor moisture penetrates the housing due to pressure differences, it will not cause a short circuit. Together, they achieve the IP67 rating. In summary: IP67 vacuum deposition is a non-intrusive protection method. It applies a nano-scale hydrophobic film onto the internal circuitry of an electronic device, supplementing its physical structure to achieve protection against dust and temporary immersion.