Question on heat shrink and outdoor use

[Z-man]

I wondering where I can get some information on heat shrink.
Need to know how if it contains any UV stabilised compounds, so that it can
withstand exposure to sunlight for exteternal applications?

Anyone used it outdoors and can coment on it's condition after 1 year or
more?

 

[John_H]

Z-man wrote:

I wondering where I can get some information on heat shrink.
Need to know how if it contains any UV stabilised compounds, so that it can
withstand exposure to sunlight for exteternal applications?

Anyone used it outdoors and can coment on it's condition after 1 year or
more?

I've been using the run of the mill stuff from WES or Jaycar around
solar panels and fence energisers for years without problems (inland
tropics to boot). In my experience the insulation on the cable, of
which there's a huge variation between manufacturers, is more likely
to fail first. I always use a heat gun to shrink it rather than a
flame.

There's also one for waterproof joints which has a gel like sealing
layer on the inside. I can't point you to a supplier but it comes in
the joining kits for most makes of submersible pumps (supplied as
standard with the pumps). I've never quite trusted it and prefer to
use the Scotchbrite joiners instead but plenty do use it, apparently
without undue problems.

--
John H

Hotmail is a spam trap, wbuauneirl@ovtcbaq.pbz will reach me if you apply ROT13.

 

[John Tserkezis]

John_H wrote:

There's also one for waterproof joints which has a gel like sealing
layer on the inside. I can't point you to a supplier but it comes in
the joining kits for most makes of submersible pumps (supplied as
standard with the pumps). I've never quite trusted it and prefer to
use the Scotchbrite joiners instead but plenty do use it, apparently
without undue problems.

We use it all the time. You need to get it hot though, otherwise the "glue"
on the inside won't flow and adhere to the surfaces. If you just heat it
enough to shrink it, it won't be enough.

A dedicated hot air blower is a must for this. Hair dryers and flames will
not do the job. Hair dryers don't get hot enough, and flames will cook the
heatshrink before getting it hot enough.

Once it's on properly though, it's a right b**ch to get off again. You need
the services of a sharp stanley blade and pliers.

Available from RS/Farnell etc if you're happy to pay their prices.

--
Linux Registered User # 302622 <http://counter.li.org>

 

[Z-man]

"John_H" <john4271@hotmail.com> wrote in message
news:qfob00h2o22vgr9dctd83dupue6fb3f599@4ax.com...

Z-man wrote:

I wondering where I can get some information on heat shrink.
Need to know how if it contains any UV stabilised compounds, so that it
can
withstand exposure to sunlight for exteternal applications?

Anyone used it outdoors and can coment on it's condition after 1 year or
more?

I've been using the run of the mill stuff from WES or Jaycar around
solar panels and fence energisers for years without problems (inland
tropics to boot). In my experience the insulation on the cable, of
which there's a huge variation between manufacturers, is more likely
to fail first. I always use a heat gun to shrink it rather than a
flame.

There's also one for waterproof joints which has a gel like sealing
layer on the inside. I can't point you to a supplier but it comes in
the joining kits for most makes of submersible pumps (supplied as
standard with the pumps). I've never quite trusted it and prefer to
use the Scotchbrite joiners instead but plenty do use it, apparently
without undue problems.

--
John H

Hotmail is a spam trap, wbuauneirl@ovtcbaq.pbz will reach me if you apply
ROT13.

Thanks for the input John.



I purchased the heat shrink from Jaycar.



Believe it or not I'm actually using it to refurbish some external trim on
the car.

It came up really well but I'm concerned that it won't remain that way for
long because I've been told it has no or little UV resistance. I have
discovered there are other heat shrink tubing products available, which are
made from PTFE, etc, that offer UV protection. I found this information
after searching the Internet but am unable to locate any.



I currently work in IT industry but have worked in the electronics industry
of several years as a TV technician and in the AV industry also so I've used
heat shrink many times before, just not for the purpose mentioned above. I
too use a heat gun as it's much quicker and easier than any other method
I've tried.



The tubing you refer to with the adhesive internal lining can be purchase
from RS component and probably Farnell. I've used it several times but it's
much more expensive. RS and Farnell aren't the cheapest places to purchase
stuff but they do have quite a variety.



It will be interesting to see how the trim I've refurbished will handle the
test of time.



John L

 

[Vermin]

On Wed, 14 Jan 2004 23:28:59 GMT, "Z-man" <Z-man@yahoo.com.au> wrote:

I wondering where I can get some information on heat shrink.
Need to know how if it contains any UV stabilised compounds, so that it can
withstand exposure to sunlight for exteternal applications?

Anyone used it outdoors and can coment on it's condition after 1 year or
more?

Give Cables Plus a call http://www.cablesplus.com.au/ they should be
able to help.

V.

 

[Miclin Baxter]

I use the heatshrink with what they call 'mastic' on the inside under water
at reasonably great depths to 1,000 metres
I do put on two overlapping layers, the first one 100mm total length and the
second one 150mm. Never ever had a problem.
I use the Mil Spec stuff from Farnell above ground on solar panels and never
had an issue.

--


"John_H" <john4271@hotmail.com> wrote in message
news:qfob00h2o22vgr9dctd83dupue6fb3f599@4ax.com...

I've been using the run of the mill stuff from WES or Jaycar around
solar panels and fence energisers for years without problems (inland
tropics to boot). In my experience the insulation on the cable, of
which there's a huge variation between manufacturers, is more likely
to fail first. I always use a heat gun to shrink it rather than a
flame.

There's also one for waterproof joints which has a gel like sealing
layer on the inside. I can't point you to a supplier but it comes in
the joining kits for most makes of submersible pumps (supplied as
standard with the pumps). I've never quite trusted it and prefer to
use the Scotchbrite joiners instead but plenty do use it, apparently
without undue problems.

--
John H

Hotmail is a spam trap, wbuauneirl@ovtcbaq.pbz will reach me if you apply
ROT13.