[Public-List] Custom Gaskets

[Mike Lehman]

I just bought 10 feet of butyl rubber sanitation hose made by Raritan and 
sold at Defender Marine. It is white and claims to have 15 times the odor 
resistance of flexible PVC hose. What I like about it is that it bends a 5" 
radius and does not need to be heated to fit over the fittings. What I did 
not like about it was the price...$ 11.79 per foot.

-----Original Message----- 
From: Kris Coward
Sent: Thursday, December 01, 2011 4:41 PM
To: Alberg 30 Public List -- open to all
Subject: Re: [Public-List] Custom Gaskets


All the black ones are marked butyl now too; I'd guess that in the
intervening years, non-butyl tubes got abandoned in favour of butyl, and
they started adding carbon to the butyl. (I was working in a bike shop
when I noticed that none of the tubes were terribly distiguishable from
the ones that were explicitly marked as butyl).

-Kris

On Thu, Dec 01, 2011 at 04:30:39PM -0500, George Dinwiddie wrote:
> Back in the early 70s when a friend of mine ran a bike shop, butyl tubes 
> (which are cream colored) were relative rare and more expensive. They were 
> great for making slingshots, though, as they are considerably stretchier 
> than others.
>
> George
>
> Sent from a primitive pocket computer. Please assume all errors are due to 
> that.
>
> On Dec 1, 2011, at 16:11, Kris Coward <kris at melon.org> wrote:
>
> > On Thu, Dec 01, 2011 at 04:02:36PM -0500, John Riley wrote:
> >> George Dinwiddie wrote:
> >>> You can also get industrial gasket material by looking under "gaskets"
> >>> in the yellow pages. If you can use scraps, you can probably get it
> >>> pretty cheap.  We've got a strip of 1/8" thick neoprene behind the
> >>> coamings.
> >>>
> >>> - George
> >>>
> >>
> >> Also, a visit to the local tire shop will likely yield some old truck
> >> tire inner tubes...when I tried this, they gave them to me free of
> >> charge, but I had to dig through the pile for what I wanted.  They said
> >> I could take two, and you get a TON of 'gaskets' out of two 18 wheeler
> >> inner tubes.
> >
> > I've also had good luck with bicycle inner tubes as gasket material (and
> > any bike shop will have plenty in the garbage that you can take for
> > free). I've also noticed in the past that the bike inner tubes (and I'm
> > guessing also the truck tubes) are made of butyl rubber, so given
> > butyl's desirability for other sealing jobs, inner tubes should work
> > quite well enough.
> >
> > Cheers,
> > Kris
> >
> > -- 
> > Kris Coward                    http://unripe.melon.org/
> > GPG Fingerprint: 2BF3 957D 310A FEEC 4733  830E 21A4 05C7 1FEB 12B3
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-- 
Kris Coward http://unripe.melon.org/
GPG Fingerprint: 2BF3 957D 310A FEEC 4733  830E 21A4 05C7 1FEB 12B3
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