Drysuit seals, to cut or not
#1
Posted 01 February 2005 - 06:08 AM
Neck seals have rings and some think they are to be trimmed off one at a time to fit.
The stretching schools say to put the neck seal over a coffee can for six hours if it too tight. And then a tank if the coffee can doesn't help.
The question is "To cut or not?"
Mike
#2
Posted 01 February 2005 - 08:01 AM
DSSW,
WWW™
#3
Posted 01 February 2005 - 08:51 AM
Obviously a little at a time if it's Latex with rings on it..
That's what the rings are for, as a guide.
And since I don't want to get jumped on, DUI brags about how their seal "doesn't stretch" and believe the others are mfg'd the same way.. not to stretch.. wouldn't last long if they were stretchable.
Having said that, I've tried the same thing with a neck seal, putting on a alum 80 tank for 2 days and it seemed to stretch a little... and then back to size... but still needed to trim first.
Trimming is not easy.. therefore the rings.
You can't just put it in a paper cutter (as I have done) to get a clean cut straight accross. You have to follow a curve and that's what the rings are for.
Cut on the top side of the ridge to keep that ridge as a stronger rim. No NICKS.. as they form the best chance for your next tear... so cut with care.. and heheh, don't cut too much...
If you eyes bulge, face red and puffy, cut down to the next ring. It doesn't have to be that tight. The cold water will cause shrinkage (body) so you need to have it tight. Cutting too much and you get to buy another seal.
I prefer the stronger heavier "military?" seals as they don't "seem"? to tear as easily... probably just an assumption on my part.
The thicker neoprene seals can be made smaller by sending back to the shop. They don't have to replace it, they just cut down the seam and reglue... I'm talking about the Hi-Tides setups... not something you'd want to try, but it's quick and simple for them to do it..
Finally, I had the DUI Rings installed and like the ability to change them out if there is a tear. Expensive, but did tear on on a Canada trip and ruined the dives.
Keep in mind you need to have a back up set to make it work it's magic... ie. replace them on the spot. A little hard to get used to the stiff ring when putting on and off, but not a real problem...
Hope that helps..
#4
Posted 01 February 2005 - 09:34 AM
So if you have Latex, you have to cut. Just, as mentioned, be very careful not to leave nicks, because that'll be where they tear.
#5
Posted 01 February 2005 - 09:50 AM
I cut my seals to fit when I first got my suit and have had no issues with them. They fit great and no leaks!
Oh, and I know this may sound silly, but some divers have done this: do not attempt to trim your seals with the seals stretched out, they can split and run. Apparently the dive shop owner I purchased my suit said he deals with this issue more often than you would think, people attempting to trim the seal while it's on a coffee can or some other similar object. And as Frank noted, you cannot trim it by cutting it straight across. Even doubling it up is not recommended. Just start in one spot with very very sharp scissors and follow the ring avoiding nicks that could split when putting on the suit.
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#6
Posted 01 February 2005 - 12:56 PM
Is this what you're talking about?Obviously a little at a time if it's Latex with rings on it..
That's what the rings are for, as a guide.
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#7
Posted 01 February 2005 - 02:57 PM
The only time I have seen the "coffee" can method for neck seals and "pork & beans" cans for wrist seals is for those divers with neoprene seals. I don't know if it really works as I don't dive neoprene seals...
I have neoprene seals and it does work. It is even suggested in the manufacturer's book for my suit...(High Tide).
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#8
Posted 01 February 2005 - 06:14 PM
I wondered about that, so now I know! Thanks WW!I have neoprene seals and it does work. It is even suggested in the manufacturer's book for my suit...(High Tide).
Once in a while, it is good to step back, take a breath, and remember to be humble. You'll never know it all - ScubaDadMiami. If you aren't afraid of dying, there is nothing you can't achieve - Lao-tzu. One dog barks at something, the rest bark at him - Chinese Proverb.
#9
Posted 01 February 2005 - 06:44 PM
#10
Posted 01 February 2005 - 07:20 PM
Once in a while, it is good to step back, take a breath, and remember to be humble. You'll never know it all - ScubaDadMiami. If you aren't afraid of dying, there is nothing you can't achieve - Lao-tzu. One dog barks at something, the rest bark at him - Chinese Proverb.
#11
Posted 01 February 2005 - 11:09 PM
Sounds like when I came up after tearing my suit open on a corner of a wreck's pilothouse. There was no doubt that I used to be in the submarine service and that we weren't always the "Silent Service." Water flooding into "that area" was definitely not a pleasant experience when it was 41 degrees.I do understand them to be more comfortable. Some of my DMs have gotten bad rashes after long weekends from their latex seals. I'll just never shake that flood. It was the WORST. It's a hilarious story, but the most uncomfortable experience. On of the guys I was diving with was another DM of mine and former Navy. He said when I surfaced he heard worse things out of my mouth than he did while on active duty....
I prefer latex seals myself. I have to order larger seals with a medium suit because the @#@!$ things take off circulation to my hands and head otherwise (and my overall build is smaller), but I have helped people roll in their neoprene seals before. I'll keep my properly fitting latex seals.
#12
Posted 01 February 2005 - 11:23 PM
They're more pliable, thiner and prone to tearing a little easier than Neo, but Neo is more comfortable, IMNSHO, but stiffer.
I like the DUI as it's roll-upable for packing as the Hi-Tide isn't so much as it'll start to crease.. so it's pretty much a mattter of choice.
I like them both, seals and all.. now diving with the neo (Hi-Tide) and keep the DUI as a backup... weighting is a little different, but usually offset with the undergarments so balances out..
Seal wise, Neo seems to be the easiest to deal with.. no worry about nicks, durable but thick...
Heheh... Ya Jamie, those are the rings.. of fire...
#13
Posted 02 February 2005 - 12:21 AM
Next suit, I will go with zip seals. If I have to trim, I won't be so fearful.
I would at least try stretching before trimming. If it doesn't work, then you have to go for it. If it does, you won't ever have to figure out afterward that you trimmed just a little too much.
"For the diligent diver, closed circuit rebreathers are actually safer than open circuit scuba." Tom Mount
#14
Posted 02 February 2005 - 06:18 AM
My last dry suit had neo seals and they fit me well out of the box. Neck seal always felt a little tight at first. They worked OK, however if I got into a situation such as helping with OW checkout dives where my head was constantly on a swivel the neck seal did leak some, and my shirt sleeves got somewhat damp at cuffs. Never major flooding.
I just got a new suit OS Systems, with latex seals, Wrists feel great, neck seal is causing some eye bulge.
I heard as the above advice points out to stretch out the neo seals and cut the latex. The guy I bought the new suit from says never cut the latex seals, and the instructions that came with the suit from OS Systems says to use the can method and stretch the seals if they are to tight.
Mike
#15
Posted 02 February 2005 - 08:32 AM
It could be what with new materials and all..
Neo: Leaking, my Neo did the same thing, burps... when in different angles, was constantly having to put in air... sent it back for the mfg to tighten up which they did. It's an apparently easy process for them as they don't have to replace the seals, neck or wrist, just cut them length wise and reglue... now works fine.. just have them measure again and they should be able to do it...
Latex: If that's what the mfg recommends then by all means try it... DUI makes those ring for the intent purpose of cutting. They absolutely state that Stretching, a common thought, DOES NOT Work... so go figure... probably new materials and the mfg should know what works and what doesn't...
Good luck, I use an alum 80 when I tried it... a little lube/powder to make it slip on better but check with the mfg to see what they recommend... after all, they're the ones that will repair/replace it if it doesn't work eh??? Eye bulge
is NOT good... heheh
Dive safe...
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