A learning experience…
So, I’m obviously an idiot with a lot to learn. Unfortunately, I’m also a stubborn old fart with a tendency towards curmudgeonism once I get an idea stuck in my head and sometimes post sharp-tongued replies when frustrated. I apologize to anyone who may have read my reply yesterday before I cooled down and came to my senses and deleted said reply. I especially apologize to Brian.
So, since I was sorely confused about how neoprene works, I decided to stop confusing myself even more with my dizzying Google researches. I happened to be at LL Bean yesterday looking at winter coats (for non-paddling activities). Chasing after my 2-year-old daughter through the fishing gear section, I noticed they had neoprene gloves on display. I couldn’t resist the temptation to put my “understanding” of neoprene to the test. I tried on several pairs in different sizes, picked out a nice tight-fitting pair that still allowed movement and blood flow, and checked out. (Didn’t actually get what I came for… a winter coat!)
Once I got home last night, I hurried to test these gloves out. I dumped all the ice from the ice maker into a large stock pot in the kitchen sink (it was time to clean out the ice maker anyway). I filled up the pot and gave the water a few minutes to get nice and chilly. Pulling on my new neoprene gloves, I dunked my hands into the water being careful not to go so deep that the water came up over the cuffs.
Holding my hands underwater, within 5 seconds I could feel ice-cold water start to infiltrate the insides. I squeezed my hands into fists and released several times and could feel even more water start to squish in. I could feel water accumulating inside the gloves, especially in the palms of my hands where there was a loose fold when my hands were balled into fists.
At this point, I was starting to get kind of peeved. I had actually been hoping to be proved wrong; that neoprene really is waterproof and my “understanding” of how it works was totally wrong. Instead, it seemed as if the experiment was proving my point. Unfortunately, in the frustration of the moment, I decided to pull off the gloves, run upstairs to my computer, and fire off a hasty reply to Brian in my best 5-year-old “neener neener neener” impersonation. Later in the evening, after much contemplation, I thought better of the situation and decided to delete my comment. (I’m sheepishly hopeful that not too many people actually read it,)
It started to occur to me that there has to be something else going on with my experiment; something more than just me being right. Because, I’ll admit it, I’m rarely EVER right! So, I grabbed the gloves to examine them more closely. Noticing the tightly-sewn seams on the back of the hands and in between the fingers, I wondered if maybe the gloves were simply leaking through the seams rather than the neoprene itself. To test this, I folded the cuff of one of the gloves back over itself to form a cup of sorts, at a spot where it was solid neoprene; no seams. I then filled this “cup” with water and let it set. After awhile, I came back to find the “cup” empty. I felt around the inside of the folded area to see if the water had leaked through. Nope, it seemed to be dry. Where did the water go? Then I noticed on the outside of the glove where the water had been, the glove appeared to be damp farther up the glove. It appears the water wicked up into the material, but never leaked through it. So, this seems to be showing me that neoprene probably is waterproof, but that it may also absorb some water.
Still wondering about the seams, I decided to fill the inside of the glove up with water. Holding the glove upside down and full of water, I immediately saw water starting to leak through at several points. AH HA! So it WAS the seams! Well, now don’t I just feel like an idiot?!?! I think I’m starting to actually understand how neoprene works, for real this time!
Okay, so neoprene itself is waterproof and will keep you dry and insulate you. However, depending on the quality of the neoprene garment, water may be able to infiltrate at weak points, such as seams. A properly-fitted neoprene garment (read as very, very tight) will apply lots of compression and help keep the infiltrating water at bay. Any water that does happen to infiltrate will be warmed by your body heat. As long as water is not constantly flushing in/out of the neoprene garment, this thin layer of water should stay trapped and kept warm by your body heat. Am I starting to get this? At least a little bit?
If I’ve got this right, and it’s the seams on my gloves that are failing and letting water in, I’m kind of upset. Now I have these “waterproof” neoprene gloves with craptastically-leaky seams. How do I go about fixing these? Back to Google! So, I search and search and search some more. From what I found, I could seal the seams with a number of different products. It appears that AquaSeal is a popular product for just this type of thing, along some other wetsuit-specific repair products. Unfortunately, dive shops aren’t all that plentiful near me. I also read a few posts stating that liquid electrical tape could also be used to seal seams. Now, big-box home improvement stores are all over the place near me. And as it turns out, I needed to hit one up for some replacement fluorescent bulbs for the kitchen lighting fixture anyway. So, I picked up a bottle of this liquid goo and am itching to give it a go once my gloves dry out.