Is neoprene really waterproof?
Posted by: Waterbird on Nov-13-12 8:43 PM (EST) Category: unassigned
I thought it was. I find my Chota mukluks are waterproof for a few minutes. If I stand in the water longer than a few minutes, I start to feel a minute amount of water seeping through.
Is it coming through a hole or a seam, or does it seep through the neoprene itself with longer immersion?
Boots are a few years old. I never noticed this problem before, but I never stood in the water for very long until recently.
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Posted by: rpg51 on Nov-13-12 8:57 PM (EST)
the material is waterproof.
what about neoprene skirts|
Posted by: rickdoner on Nov-17-12 11:19 AM (EST)
I have what I thought was a good snapdragon skirt. But in rough water, in fact, even in smooth water, I end up with water in my cockpit. I had the boat (Impex Force Cat 3) checked out, and I think it's ok. So, is it possible that water just soaks through the neoprene
Posted by: jerrysmith on Nov-13-12 8:58 PM (EST)
Neoprene boots are waterproof.
If you feel it's soaking through along a|
Posted by: g2d on Nov-13-12 9:09 PM (EST)
seam, you can use SeamGrip, runny cousin of Aquaseal. It is thinner and is designed for soaking into and waterproofing tent seams.
I had to seal portions of the seams ...|
Posted by: guideboatguy on Nov-13-12 11:59 PM (EST)
... on the neoprene portions of my Gore-Tex Chota boots, and just recently discovered that I need to do the same on my all-neoprene Chotas. Both were waterproof when new, but after many years of use the seams must have gotten a little "looser". A slight bit of leakage through seams when new would not surprise me at all though. Find the exact location of the leak by filling them with water and observing where the water oozes through, and fix it. It wouldn't hurt to seal more seam area than you think you need.
seal the seams|
Posted by: nermal on Nov-14-12 8:53 AM (EST)
An unfortunate common problem with Chota's, they'll start to leak along the seams.
Same with gloves|
Posted by: Jaybabina on Nov-14-12 9:18 AM (EST)
I never had a neoprene glove that didn't leak after a few paddles. I always have to seal the seams with Aquaseal. Even brand new they sometimes leak. I guess getting an edge to edge seal with thin neoprene is not easy?
Typical for you !|
Posted by: Roanguy on Nov-14-12 9:06 AM (EST)
You were recently proclaiming that the Choata's "kept your feet warm and dry", and were telling another poster to get them.
I've had my Chotas for years and they |
Posted by: string on Nov-14-12 11:05 AM (EST)
Maybe he has...|
Posted by: kayamedic on Nov-14-12 11:25 AM (EST)
Good point KM. I am fortunate to live |
Posted by: string on Nov-15-12 11:20 PM (EST)
where I only have to dig my Chotas out a couple of times a year.
String, I probably dig mine out|
Posted by: sissy103 on Nov-16-12 7:41 AM (EST)
more frequently than you do. It's a short season down here, but I don't like cold feet.
I have used them for several years|
Posted by: Waterbird on Nov-24-12 9:05 PM (EST)
I only noticed the leaking very recently. I still love these boots.
Posted by: magooch on Nov-14-12 12:22 PM (EST)
I have stood in the water for some time and never gotten a hint of a leak with my Chota mukluks. Do both of your boots leak, or just one. If only one, I would suspect a leaky seam, or maybe a leak in the sole.
Posted by: goobs on Nov-14-12 2:08 PM (EST)
Well, not "all" neoprene footwear|
Posted by: guideboatguy on Nov-14-12 3:20 PM (EST)
It sounds like you are talking about waders with stocking feet, designed to go inside boots (that's my take on your use of the term "compression failure"). Paddling boots have no such issues, since the neoprene never gets "squashed" that way. Paddling boots have a structural sole which bears your weight, rather than neoprene fabric.
Posted by: suiram on Nov-14-12 3:24 PM (EST)
is best described as closed cell rubber foam - or small cavities formed by gas bubbles in rubber.
Yes, neoprene is waterproof|
Posted by: pikabike on Nov-15-12 12:08 AM (EST)
It is, basically, rubber. Where leakage occurs the neoprene has been broken, either through a tear or from stitching that was not seam-sealed well or became separated.
Yes, but ...|
Posted by: Dr_Disco on Nov-16-12 12:18 AM (EST)
Neoprene has been gradually improved over time. Anything you buy now is almost certainly waterproof. Something that is older may or may not be waterproof. Depends on how old it is. When I began windsurfing (in the dark ages), which was before I began kayaking, neoprene was not completely waterproof. Since the OP said the neoprene was older it may not be the seams. But seam leaks should be examined first.
Interesting range of replies|
Posted by: Waterbird on Nov-16-12 7:11 PM (EST)
Yes, no, and maybe!
Posted by: guideboatguy on Nov-16-12 7:46 PM (EST)
Depends on the application|
Posted by: Dr_Disco on Nov-16-12 9:37 PM (EST)
Older wetsuits were not "waterproof" but the theory was that the water that seeped through would prevent further water from getting in and your body would warm the water that was there and form a kind of barrier. I don't know if that was the real principle or not but I did windsurf in cold wind/water in comfort. The booties that we wore were of the same material. I am certain that material is better today (I have surfing wetsuits that are very good at keeping me warm). But it can't hurt to ask when the foot ware was made.
Depends on how you define "waterproof"|
Posted by: Waterbird on Nov-17-12 9:42 AM (EST)
Replies have pointed out that it depends on the age of the material and other factors. Suiram's reply was especially interesting because it mentions the specific structure of the material, which can break down over time.
holes from stitching are not waterproof|
Posted by: paddlemore on Nov-16-12 9:44 PM (EST)
Neoprene is waterproof, but the holes from stitching garment panels together are not waterproof (unless they are sealed). Using aquaseal or seam grip will fill the holes and make them waterproof.
It also depends on the thickness|
Posted by: bnystrom on Nov-17-12 9:01 AM (EST)
The thinned the neoprene is, the more likely it is to have leaks and develop them over time. 2mm and thinner neoprene will generally either leak immediately or develop leaks pretty quickly in use.
My waders are neoprene & waterproof|
Posted by: FrankNC on Nov-17-12 11:22 PM (EST)
Well one pair is anyway. With waders it is just a matter of time until you have to patch something. Waders live a hard life stumbling through cold rocky water and thorny brushes on shore.
Posted by: LeeG on Nov-18-12 1:06 PM (EST)
Holes in neoprene make the construction not waterproof.
here's a dumb question from me:|
Posted by: slushpaddler on Nov-27-12 12:27 PM (EST)
I don't doubt it's waterproof. But why then can I wring it out?
Posted by: mintjulep on Nov-27-12 12:47 PM (EST)
Because when closed cell neoprene foam is used as a wet suit or spray skirt fabric it is typically faced with Nylon or Polyester cloth. Most of what you are wringing out is water that is held by the facing. A bit more from the bubbles that are open to the surface.
thank you, from the physics-challenged|
Posted by: slushpaddler on Nov-27-12 3:36 PM (EST)
That does make sense.