types of trilaminate

Drysuits, semi-drysuits, wetsuits, undersuits, hoods...what do you want to know?

types of trilaminate

Postby Milky » Thu Jul 24, 2008 8:45 pm

Hey all,

it seems that there r different types of sheel drysuit,eg. trilaminate,rubber,cordura, etc.

can anybody tell the real difference between them? and r there more types of shell drysuit around?

thx 4 d input all.
Alive to Dive
User avatar
Milky
Member
 
Posts: 496
Joined: Tue Apr 10, 2007 12:54 pm
Location: West Auckland

Re: types of trilaminate

Postby Andy » Thu Jul 24, 2008 10:11 pm

Most membrane suits will be trilaminate, though you do find some bilaminate suits and also ones that are straight vulcanised rubber. The Viking suits are good examples of vulcanised rubber.

Trilaminate suits tend to be a butyl rubber, sandwiched between two layers of other material. Butyl rubber is "air tight"", but isn't particular robust (and has some interesting stretch characteristics) so putting it between two other layers protects the integrity of the rubber.

So yeah, you'll see huge variation in "trilaminate" - some will use nylon, some will use polyester and so forth. Each material will come with a different weave. Even the butyl rubber layer will vary in density. All of these things will change the way the suit feels and lasts.

Hammond Drysuits have the details of the materials they use on their website;

http://www.hammond-drysuits.co.uk/infop ... 10&extra=1

So for example, one of the materials they use is 160g/sqm Cordura weave outer, 160g/sqm butyl liner, 70g/sqm polyester inner. Cordura is just nylon, but the weave of the fabric is more resistant to abrasion etc.
Andy
Serial Poster
 
Posts: 4628
Joined: Thu Feb 01, 2007 1:29 pm
Location: Auckland

Re: types of trilaminate

Postby Milky » Thu Jul 24, 2008 10:36 pm

so this vulcanized rubber, how is it differ to trilaminate?

can u use vulcanized rubber for recreational diving?
Alive to Dive
User avatar
Milky
Member
 
Posts: 496
Joined: Tue Apr 10, 2007 12:54 pm
Location: West Auckland

Re: types of trilaminate

Postby silent solutions » Fri Jul 25, 2008 8:52 am

Vulcanized rubber suits are bukly heavy suits that have no give, They are mainly used for commercial and contaminated water diving.Sure you could use them for rec diving but as the saying goes use the right tool for the job.
User avatar
silent solutions
Member
 
Posts: 246
Joined: Mon Feb 05, 2007 7:50 pm

Re: types of trilaminate

Postby Milky » Sun Jul 27, 2008 10:13 am

what about Cordura material? what would u consider as d best maaterial for outter layer of a trilamiante? kevlar maybe?
Alive to Dive
User avatar
Milky
Member
 
Posts: 496
Joined: Tue Apr 10, 2007 12:54 pm
Location: West Auckland

Re: types of trilaminate

Postby Andy » Sun Jul 27, 2008 10:34 am

What do you want the suit to do? I don't think there's any "best" material. The whole thing with trilam suits is that you can get completely different characteristics by selecting the different layers.

But the thing to remember is that they all do the same job. Different manufacturers use different materials for different reasons - just pick a suit you like and go with it.

Why would you want a kevlar suit?? It would be very stiff.
Andy
Serial Poster
 
Posts: 4628
Joined: Thu Feb 01, 2007 1:29 pm
Location: Auckland

Re: types of trilaminate

Postby Milky » Sun Jul 27, 2008 11:07 am

hey thx for pointing that out.

i didn't know that kevlar is stiff, all i know is strong.
Alive to Dive
User avatar
Milky
Member
 
Posts: 496
Joined: Tue Apr 10, 2007 12:54 pm
Location: West Auckland


Return to Wetsuits & Drysuits

Who is online

Users browsing this forum: No registered users and 2 guests

cron