Live data from Hacker News

Waterproof anything with a spray

designtaxi.com

11–20 of 53 posts

Re: Waterproof anything with a spray

#11
post #10

Any health issues studies on this? Can't imagine it being good to get a coating on your internals.

Forget about coating your internals. What about this: You spray it on your clothes, put them on, this thing gets on your skin, and blocks all of your pores. Isn't that kind of a healthy hazard?

Re: Waterproof anything with a spray

#12
I remember reading about similar technology before at least twice here on HN; it was 'glass in spray' then[1]. It was supposed to be here soon and revolutionize everything. I hope that this time it will actually become available to buy.

[1] I think this one: http://www.smartplanet.com/blog/smart-takes/-8216liquid-glas...

Re: Waterproof anything with a spray

#13
Not to "rain" on their parade (heh), but the ability to pass water vapor effectively while also remaining hydrophobic for water droplets, and doing that for a long time on surfaces that are exposed to constant wear, is sort of the holy grail of the outdoor gear industry.

The company's page for their product (http://www.neverwet.com/product-characteristics.php) doesn't mention breathability. Considering that breathability would be a feature that would make them the next Gore-Tex, I'd expect them to trumpet it pretty loudly.

There are already pretty decent spray-on coatings for outerwear, they just don't last very long in the fabric and have to be re-applied after a few uses.

I used to work for Northern Mountain Supply back when they were a sort-of big deal.

Re: Waterproof anything with a spray

#14

Not to "rain" on their parade (heh), but the ability to pass water vapor effectively while also remaining hydrophobic for water droplets, and doing that for a long time on surfaces that are exposed to constant wear, is sort of the holy grail of the outdoor gear industry. The company's page for their product ( http://www.neverwet.com/product-characteristics.php ) doesn't mention breathability. Considering that breatha…

I'd like to see what happens when you flex the material a few dozen times and then reapply water. That shoe demo doesn't mean a thing if you can't walk in the shoe.

These types of coatings also tend to fail miserably under salt water conditions.

Re: Waterproof anything with a spray

#15

Not to "rain" on their parade (heh), but the ability to pass water vapor effectively while also remaining hydrophobic for water droplets, and doing that for a long time on surfaces that are exposed to constant wear, is sort of the holy grail of the outdoor gear industry. The company's page for their product ( http://www.neverwet.com/product-characteristics.php ) doesn't mention breathability. Considering that breatha…

I love the graph on that page, where 160-175 "degrees of hydrophobicity" are illustrated as a huge, exponential increase over 110 degrees. To me, more than the breathability or durability or whatever other technical issues, that graph is a huge red flag that this is 90% marketing, 10% engineering.

Re: Waterproof anything with a spray

#19

Not to "rain" on their parade (heh), but the ability to pass water vapor effectively while also remaining hydrophobic for water droplets, and doing that for a long time on surfaces that are exposed to constant wear, is sort of the holy grail of the outdoor gear industry. The company's page for their product ( http://www.neverwet.com/product-characteristics.php ) doesn't mention breathability. Considering that breatha…

I love the graph on that page, where 160-175 "degrees of hydrophobicity" are illustrated as a huge, exponential increase over 110 degrees. To me, more than the breathability or durability or whatever other technical issues, that graph is a huge red flag that this is 90% marketing, 10% engineering.

The scaling, though not noted seems to be about 10 degrees per line. Which means the 160-175 is actually shy of where it should be (about 5 lines up from the 110). That bar actually shows it's at 150 degrees, which must mean their marketing is actually very conservative if we are to make grand judgement calls from one graph on a company's page. ;)

Re: Waterproof anything with a spray

#20
post #2

Wow, this is incredible. Assuming it isn't crazy expensive, I'd put this on everything from my car to my walls. I do kind of wonder how you'd wash clothes coated in this, though. It would be kind of tricky if dirt can get into the fibers but water can't. Edit: Also, I would love to prank a bartender at my local watering hole by spraying this on his bar rag when he's not looking :)

This stuff may not be safe for humans, especially as it degrades and flakes off. I don't really want my kids breathing it in.
Post reply on HN