DFM Course 13 – Waterproofing

Next up in the Design for Manufacturing course, Bill Drislane (VP of Manufacturing and Engineering) is going to talk about waterproofing and sealing. A lot of clients have come to Dragon Innovation with a wrist mounted widget gadget and they all wanted it to be waterproofed. The entrepreneurs at least wanted the gadget to be waterproofed for showering but a few wanted customers to be able to swim with it.

Waterproofing is harder than most people would imagine. The Dragon team was able to get the Pebble watch waterproofed to 5 atmospheres and it was a lot of work. Pebble has about five buttons that operate their pushers so there is a stainless steel shaft that has to slide through a seal. Those are always the hardest to seal especially if you’re operating the button in the water as it might drive water through the seal.

You also have other issues like controls across the boundary, charging contacts that have to be waterproofed, and joints within the different parts of the housing. For something like the Pebble watch, you have the crystal to the top housing and then the top housing to the main housing for the battery contact and so on. It’s a very demanding process.

You can watch the full lecture and view the accompanying slides below:


  • Phillip Luebke commented on January 15, 2015 Reply

    Thanks! Good quick overview of the challenges faced in waterproofing devices.

  • royhousingsolutions commented on April 24, 2015 Reply

    In India it is a frustrating issue faced by many construction agents. Quite a resourceful insight in dealing with it. thank you!

  • polyurea su yalıtımı commented on October 6, 2015 Reply

    Thanks for sharing

  • nayana commented on December 22, 2015 Reply

    Hii…informative post thanks. I enjoyed the way you set up the information Waterproofing

  • David - Walshmfg.com commented on January 14, 2016 Reply

    Pebble is great. Waterproofing feature always amaze me, especially in bigger products such as smartphones. It’s so great with so many ports it has and much bigger screen, those smartphones still can offers waterproofing feature which really works.

  • GetCourses commented on February 10, 2016 Reply

    Waterproofing is harder than most people would imagine.

  • Truworth Homes commented on March 29, 2018 Reply

    Nice Information! Really reliable!

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