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jmiller
User Rank
Platinum
Re: Excellent Application!
jmiller   1/30/2013 9:47:40 PM
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I suppose there's a difference between water proof and water resistant.  I know there's a difference between fire proof and fire resistant.  And it has to do with self extinguishing compared to the inability to catch on fire.  In both cases it's intersesting how marketing words sometimes sound similar to what we want, but in the end it's just real close.

jmiller
User Rank
Platinum
Re: Excellent Application!
jmiller   1/30/2013 9:44:45 PM
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I do too. But Will I still be able to open up the back so I can pull out the battery when it locks up?

Tim
User Rank
Platinum
Re: Excellent Application!
Tim   1/30/2013 9:41:40 PM
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I guess that this is the difference between water resistant and water proof. I have had a few watches that could have benefited from this technology.

Charles Murray
User Rank
Blogger
Re: Excellent Application!
Charles Murray   1/30/2013 6:17:15 PM
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I would define immersion as being under water for a few seconds. Dropping it in a bath tub full of water or in the toilet (as one reader described) would be an example. Can this technology withstand that? My guess would be no, because any connection to the outside world would take in water. Right?

NadineJ
User Rank
Platinum
Re: Excellent Application!
NadineJ   1/30/2013 5:38:51 PM
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Yes, Dave Palmer, I agree.  I wasn't suggesting that this process could be marketed as "anti-cancer".  I was putting the idea out there.  It's a market that's waiting for the right product/attention. 

The evidence isn't as weak as those in CE claim though.  I'm sure it's not just cell phones placed in bras that has caused increased breast cancer in very young women.  What I listended to on Pacifca radio was very compelling and gave good evidence that cell phones aren't entirely benign.

But, is there anything that's completely safe today?

Ann R. Thryft
User Rank
Blogger
Re: Excellent Application!
Ann R. Thryft   1/30/2013 3:18:13 PM
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This coating is applied via a plasma-enhanced vapor deposition process. Similar processes are used in semiconductor manufacturing.

yalc
User Rank
Iron
Waterproofing for Existing Devices
yalc   1/30/2013 2:55:48 PM
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This process is already available for existing devices.  See http://www.popsci.com/bown/2012/product/liquipel or liquipel.com.  I'm not affiliated.

SparkyWatt
User Rank
Platinum
Re: Excellent Application!
SparkyWatt   1/30/2013 1:35:23 PM
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Something that is molecularly bonded can't be peeled off, but ordinary wear takes the surface off anything.  How many computer keys have you seen that have become smooth and shiny with age?  I am sure that a plastic layer a few nanometers thick is not going to survive any process that takes micrometers off its substrate.  Ordinary wear will take this stuff off in very short order.  The only things that will remain protected are those that are not subject to wear.

Of course, that is much of the inside of any device.

What does this stuff do to battery contacts and pushbuttons?  Is it thin enough to keep its interference to a few milliohms?

D. Sherman
User Rank
Gold
Re: Interesting but?
D. Sherman   1/30/2013 1:32:32 PM
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I agree with every word of what eafpres wrote. They lost me when they claimed that the coating can never wear off and that it doesn't change the electrical properties of anything. All coatings wear off unless they're extremely hard (e.g. diamaond or SiC), in which case they're hard to deposit, hard to bond, and too brittle for use on even slightly flexible substrates. As for not changing the electrical properties, that means that the coating must "know", based on where it lands, whether it ought to be an insulator or a conductor. That, of course, is impossible.

Furthermore, once moisture gets inside an electronic device, it takes a very long time to get out. That gives it plenty of time to work mischief while it's in there. To really waterproof a camera or cell phone, it's necessary to keep water from getting in. If merely coating the PCBs was sufficient, there are plenty of good conformal coatings that will do that.

My impression is that what happened here is some chemist developed a neat way to put thin hydrophobic coatings on lots of materials, and then let his marketing guy loose with the idea. The marketing guy thought to himself "what's a large market of products that are familiar to the general public that could benefit from waterproofing?", and of course his answer was "cell phones". Unfortunately he knows nothing about electronics or even about manufacturing processes.

Jennifer Campbell
User Rank
Gold
Re: Excellent Application!
Jennifer Campbell   1/30/2013 1:27:36 PM
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This is a great idea - I'm surprised it hasn't come to market sooner. I, for one, could have used this a few years back, when my phone was drowned by the vigorous waves of the Atlantic ocean - blanket too close to the shoreline .... do the math. Of course, it will really be imressive when the technology is made and can be applied to your existing cell phone. Ann, any word from the company on that development?

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