IP67 vs IP68: Choosing the Right Waterproof Rating

**The 2-digit IP code** The IP (Ingress Protection) code is defined by IEC 60529. It has two digits: - **First digit (0-6)**: Solid particle protection - 0: No protection - 1-5: Various sized objects - 6: Dust-tight (no ingress of dust) - **Second digit (0-9)**: Water protection - 0: No protection - 1-6: Drip, spray, splash, jet, powerful jet - 7: Temporary immersion (1 m / 30 min) - 8: Continuous immersion (depth and time set by manufacturer) - 9: High-temperature, high-pressure water jets **IP67 = 1 m / 30 min temporary submersion** IP67 is the most common rating for hard cases. It means the case can be dropped in 1 metre of water for up to 30 minutes without water ingress. After that, water may start to enter. Use IP67 for: - Rain and splash - Brief drops in shallow water - Outdoor activities - Most camera and drone cases **IP68 = continuous submersion (typically 5 m / 1 h)** IP68 means the case is sealed for continuous submersion. The exact depth and time are set by the manufacturer, but typical values are 5 m for 1 hour or 10 m for 1 hour. Use IP68 for: - Marine electronics - Dive computers - ROVs and underwater drones - Equipment that may be left in water **IP69K = high-temperature, high-pressure water jets** IP69K is the highest commercial rating. It is for equipment that must survive high-pressure, high-temperature cleaning (e.g., food processing, medical sterilization). Kexin offers IP69K on request. **How to choose** Ask these 4 questions: 1. Will the case be submerged? If yes, for how long? 2. Will it be exposed to high-pressure water jets? 3. What is the temperature range? 4. What certifications do you need? For most camera, drone, and tool cases, IP67 is enough. For marine, diving, and ROV applications, choose IP68. Kexin offers both on the same case platform. Talk to engineering: [email protected] / +86 135 9055 5309.