Welcome to ScubaBoard, an online scuba diving forum community where you can join over 205,000 divers diving from around the world. If the topic is related to scuba diving, this is the place to find divers talking about it. To gain full access to ScubaBoard (and make this large box go away) you must register for a free account. As a registered member you will be able to:

  • Participate in over 500 dive topic forums and browse from over 5,500,000 posts.
  • Communicate privately with other divers from around the world.
  • Post your own photos or view from well over 100,000 user submitted images.
  • Gain access to our free classifieds marketplace to buy, sell and trade gear, travel and services.
  • Use the calendar to organize your events and enroll in other members' events.
  • Find a dive buddy or communicate directly with scuba equipment manufacturers.

All this and much more is available to you absolutely free when you register for an account, so sign up today!

NEW for 2014 Access SBlogbook for members. It allows you to directly upload data from your dive computer, validate your logs digitally, link your dives to photos, videos, dive centers (9,000 on file), fishes (14,000 on file) and much more.

If you have any problems with the registration process or your account login, please contact the ScubaBoard Support Team.
Results 1 to 8 of 8

Thread: Help with latex seals on new dry suit

 

 



  1. #1
    Scuba Instructor


    Has not set a "status"
     

    Join Date
    Mar 2006
    Location
    Phoenix, AZ
    Posts
    336
    Dives
    200 - 499

    Help with latex seals on new dry suit

    I just got my new Bare HD Tech Dry dry suit yesterday and pulled it on. It has latex seals on the neck and wrists that fit tight. I'm not sure if I should trim them or strech them. What is the best thing to do in this case since they fit tight? I know that once I trim them there is no going back, so I want to be sure that I'm making the right decision.

  2. #2
    Registered


    Has not set a "status"
     

    ScubaSarus's Avatar
    Join Date
    Jun 2003
    Location
    Connecticut
    Posts
    2,529
    Dives
    200 - 499
    The dive shop should help you out. They will or should know if its too tight or not. If you bought it online you'll need to find an experienced person to help you trim it if needed.
    Point LDS.

    I would not do it youself as Ive seen botched jobs before requiring a new neck seal and nicked neck seal causing a rip when taking it off. Ive also seen over trimming that loosens up in 3 weeks requiring a new seal.

    http://www.direxplorers.com/dir-kit-...-neck-fit.html

  3. #3
    Assimilated Medical Mod


    Counting days to CAVEZZZZ!
     

    TSandM's Avatar
    Join Date
    Jul 2005
    Location
    Woodinville, WA
    Posts
    34,339
    Dives
    1,000 - 2,499
    Photos
    28
    Blog Entries
    1
    Well, I've read people say that latex doesn't stretch, and therefore stretching it isn't useful, but I have put my neck seals over a 7" tank overnight before I cut them. The latex does seem to relax a bit over the first several weeks, so you don't want to cut the seal until it's perfect, but leave it just a tiny bit uncomfortable to begin with.

    Cutting seals is not that difficult. It's best to have an assistant to hold the seal under slight tension, and you need a very sharp cutting instrument. You want as continuous a cut as you can manage, because any abrupt edges will be starting points for later tears. If you are at all unsure about your ability to do it, take it to a shop and pay them. Messing it up can ruin the seal immediately by making it too loose, or shorten the life of the seal significantly.
    "If something goes tits up, don't count on rising to the occasion. You will fall to what you have truly mastered." (PfcAJ)
    My dive journal can be read here, and a current dive blog HERE
    Okay, you've heard all our opinions. Want to know what the science is? http://archive.rubicon-foundation.org/
    www.divematrix.com

  4. #4
    Registered


    Has not set a "status"
     

    BuoyantC's Avatar
    Join Date
    Nov 2003
    Location
    Saipan, MP
    Posts
    479
    I don't know if all latex is equal, but I got a Dacor drysuit a few years ago used and the latex neck seal was a great example of how notto trim. I did a nice straight cut to even it out, and saved the cut piece to see how much it could take before it broke.

    The zig-zag piece varied from 1/16" to about 3/8" wide, and I could stretch this about 2 ft. wide! I showed this numerous times to other divers and it has never broken yet. I use it as a rubberband for some stuff in my dive bag still. I would have never guessed it could be that tough.

    Dennis

  5. #5
    Scuba Instructor


    is.
     

    SDAnderson's Avatar
    Join Date
    Oct 2001
    Location
    On a good day, Lake Michigan
    Dives
    2,500 - 4,999
    Photos
    17
    Latex seals should be cut, neoprene should be stretched. Latex will stretch a little bit, if you give it enough time but not enough to fit properly. Neoprene can be cut if there is too much length to the seals but this is rarely needed. If your local dive shop didn't offer to do this for you when your suit came in, they suck.

    I'd take the suit back to the dive shop and ask them to do it for you. DIY seal trimming requires a sense of adventure, plenty of patience, a big dose of caution, a few tools and if you mess up it's expensive. In other words, if you don't know what you're doing, it's probably better if you let your favorite DSM do it for you.

    You'll need:
    • A couple of very sharp straight-edge blades.
    • A couple of short pieces of PVC pipe - approximately 2.5" and 5" in diameter, depending upon the size of your wrist and neck.
    • A bottle of whiskey.

    How to proceed:
    1. Start with a wrist, they're easier to do. They're also cheaper to replace if you screw up. If your wrist seals are the kind that are closed end, cut the tip off.
    2. Insert the small PVC pipe into the seal and position the seal over the pipe/form, making sure the seal is neatly lined up and even on the form.
    3. Each pass should remove no more than 1/4" of material - you can always take another bit off but once cut, you can't change your mind. Besides, you need the practice, get it on what will become waste material.
    4. Nicks and wobbles are the enemy of a successful cut! Torn seals usually start their run at tiny dings in the cut, so carefully cut the seal in a perfectly even line around the form. Take your time, cut slowly and delicately.
    5. Try the seal on. Wear it for a couple of minutes before you decide to cut again. Seals should be tight but not so much so that they make you turn blue or lose feeling.
    6. Once you have a fit that you like, proceed to the next seal.
    7. The whiskey is used to steady your nerves or to drown your sorrows, or both, as required.

    If you screw it up, kick yourself in the pants for trying something like this based upon what some guy on the internet told you, then take the suit in to your LDS and ask them to fix the mess for you. Bon chance!
    Gone diving.

  6. #6
    Registered


    Has not set a "status"
     

    Tafflad's Avatar
    Join Date
    Nov 2006
    Location
    Wales
    Posts
    230
    Dives
    100 - 199
    I had Latex seals on a suit for first time ... the manufacturer had a size chart, which told you how many 'rings' to cut off.
    I cut one size smaller so I can trim again if necessary.
    I put the wrist seals over a wine bottle and drew a line around the ring where I wanted to cut with a biro - to make it easy to follow.
    Then used a scalpel (Craft replaceable blade type) at followed the pen mark in one smooth gentle cut using blade at obtuse angle rather than just the point.

    Put the neck seal over a glass bowl .. and did same thing.

    Looks perfectly neat, and after a bundle of dives no leaks.
    Only 4.9% of the UK population live in Wales - the rest just wish they did.

  7. #7
    Registered


    Has not set a "status"
     

    *Floater*'s Avatar
    Join Date
    Jan 2005
    Location
    Here, there and everywhere
    Posts
    2,427
    Dives
    100 - 199
    Photos
    23
    I recently had to replace a latex neck seal because it had become too loose over a few years (and I never even trimmed it), so keep that in mind when cutting.

  8. #8
    ScubaBoard Supporter
    Go Red - Support SB!

    Seller of USP PURE
    Talc Products * SB Specials
     

    dave4868's Avatar
    Join Date
    Jan 2007
    Location
    Vero Beach, FL, USA
    Posts
    1,758
    Dives
    500 - 999
    Photos
    212
    Quote Originally Posted by BuoyantC View Post
    I don't know if all latex is equal, but I got a Dacor drysuit a few years ago used and the latex neck seal was a great example of how notto trim. I did a nice straight cut to even it out, and saved the cut piece to see how much it could take before it broke.

    The zig-zag piece varied from 1/16" to about 3/8" wide, and I could stretch this about 2 ft. wide! I showed this numerous times to other divers and it has never broken yet. I use it as a rubberband for some stuff in my dive bag still. I would have never guessed it could be that tough.

    Dennis
    Agree! Latex is amazingly resilient depending on age, thickness, exposure to UV, ozone and oil, etc. I wonder if there are differences in latex quality, but I've only used DUI, so I don't know.

    Like you, to make an old seal less prone to tearing, I've trimmed away some splits or tacky spots and found the trimmed pieces were remarkably strong despite the poor condition and ragged edges. But if I pulled on the weak spot a certain way, it would fail immediately.

    I've been lucky and never ripped a seal yet, but I trim away even tiny weak spots as they get old.

    Dave C

Similar Threads

  1. Stretching Latex Seals
    By Virgil in forum Basic Scuba Discussions
    Replies: 4
    Last Post: July 11th, 2006, 01:00 PM
  2. Repairing Latex seals
    By S. starfish in forum General Scuba Equipment Discussions
    Replies: 5
    Last Post: June 30th, 2006, 03:41 PM
  3. Dry Suit Seals - Latex or Neoprene
    By The Kraken in forum Exposure Suits
    Replies: 20
    Last Post: June 28th, 2005, 01:56 AM
  4. Latex Wrist Seals
    By Barriecuda in forum Exposure Suits
    Replies: 1
    Last Post: September 4th, 2003, 03:38 PM
  5. Latex seals vs. Neoprene seals
    By taat2d in forum Exposure Suits
    Replies: 8
    Last Post: October 29th, 2002, 09:14 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •