[OT] Sorta OT - plastic tube for electronics housings

D

Den

Guest
It's a bit OT but most of us here have dealt with this sort of thing so I
thought I'd try my luck again . . . . . . .


I'm looking for somewhere to buy rigid plastic tubing to house a pcb for a
low volume "cottage industry" product. Electrical conduit & irrigation pipe
are almost ideal but the plastic is inconsistent in its makeup, colour and
finish.


What I'm looking for is:

* ID around 16mm, OD 18mm --> 20mm
* Need 5m or so
* PVC referred but polycarbonate or maybe acetal could be ok, but needs to
be white or light grey or cream colour
* Outside use, 0C-55C temps, indirect sunlight, would need to last a couple
of years


Dotmar & the local plastic suppliers don't seem to have anything. RS &
similar don't have anything. I'd rather source tube than buy rod/bar and
bore it out, but I'll do that if I have to.

Any suggestions alternatives or some potential Australian sources?

Thanks
 
"Den" <Invalid@someemail.com> wrote in message
news:48e0d7e1$0$22539$5a62ac22@per-qv1-newsreader-01.iinet.net.au...
It's a bit OT but most of us here have dealt with this sort of thing so I
thought I'd try my luck again . . . . . . .


I'm looking for somewhere to buy rigid plastic tubing to house a pcb for a
low volume "cottage industry" product. Electrical conduit & irrigation
pipe are almost ideal but the plastic is inconsistent in its makeup,
colour and finish.


What I'm looking for is:

* ID around 16mm, OD 18mm --> 20mm
* Need 5m or so
* PVC referred but polycarbonate or maybe acetal could be ok, but needs to
be white or light grey or cream colour
* Outside use, 0C-55C temps, indirect sunlight, would need to last a
couple of years


Dotmar & the local plastic suppliers don't seem to have anything. RS &
similar don't have anything. I'd rather source tube than buy rod/bar and
bore it out, but I'll do that if I have to.

Any suggestions alternatives or some potential Australian sources?

Thanks
Click to expand...

Wouldn't rigid plastic conduit do, or even water pipe? I'm sure I've seen
both in white in the UK and 20 mm is a popular OD for conduit and fittings -
can't think of a reason why they shouldn't be available elsewhere (except
perhaps national building/wiring regs).

Chris
 
"christofire" <christofire@btinternet.com> wrote in message
news:M-ydnYl-o5ZMv3zVnZ2dnUVZ8tfinZ2d@bt.com...
"Den" <Invalid@someemail.com> wrote in message
news:48e0d7e1$0$22539$5a62ac22@per-qv1-newsreader-01.iinet.net.au...

It's a bit OT but most of us here have dealt with this sort of thing so I
thought I'd try my luck again . . . . . . .


I'm looking for somewhere to buy rigid plastic tubing to house a pcb for
a low volume "cottage industry" product. Electrical conduit & irrigation
pipe are almost ideal but the plastic is inconsistent in its makeup,
colour and finish.


What I'm looking for is:

* ID around 16mm, OD 18mm --> 20mm
* Need 5m or so
* PVC referred but polycarbonate or maybe acetal could be ok, but needs
to be white or light grey or cream colour
* Outside use, 0C-55C temps, indirect sunlight, would need to last a
couple of years


Dotmar & the local plastic suppliers don't seem to have anything. RS &
similar don't have anything. I'd rather source tube than buy rod/bar and
bore it out, but I'll do that if I have to.

Any suggestions alternatives or some potential Australian sources?

Thanks


Wouldn't rigid plastic conduit do, or even water pipe? I'm sure I've seen
both in white in the UK and 20 mm is a popular OD for conduit and
fittings - can't think of a reason why they shouldn't be available
elsewhere (except perhaps national building/wiring regs).
Click to expand...
Oops - missed 'inconsistent in its makeup, colour and finish'.

> Chris
 
"christofire" <christofire@btinternet.com> wrote in message
news:f7udnR2KJbwtuHzVnZ2dnUVZ8sXinZ2d@bt.com...
"christofire" <christofire@btinternet.com> wrote in message
news:M-ydnYl-o5ZMv3zVnZ2dnUVZ8tfinZ2d@bt.com...

"Den" <Invalid@someemail.com> wrote in message
news:48e0d7e1$0$22539$5a62ac22@per-qv1-newsreader-01.iinet.net.au...

It's a bit OT but most of us here have dealt with this sort of thing so
I thought I'd try my luck again . . . . . . .


I'm looking for somewhere to buy rigid plastic tubing to house a pcb for
a low volume "cottage industry" product. Electrical conduit & irrigation
pipe are almost ideal but the plastic is inconsistent in its makeup,
colour and finish.


What I'm looking for is:

* ID around 16mm, OD 18mm --> 20mm
* Need 5m or so
* PVC referred but polycarbonate or maybe acetal could be ok, but needs
to be white or light grey or cream colour
* Outside use, 0C-55C temps, indirect sunlight, would need to last a
couple of years


Dotmar & the local plastic suppliers don't seem to have anything. RS &
similar don't have anything. I'd rather source tube than buy rod/bar and
bore it out, but I'll do that if I have to.

Any suggestions alternatives or some potential Australian sources?

Thanks


Wouldn't rigid plastic conduit do, or even water pipe? I'm sure I've
seen both in white in the UK and 20 mm is a popular OD for conduit and
fittings - can't think of a reason why they shouldn't be available
elsewhere (except perhaps national building/wiring regs).

Oops - missed 'inconsistent in its makeup, colour and finish'.

Chris
Click to expand...
Yeah - other than it's colour flaws etc it's pretty much perfect - and very
inexpensive.
cheers.
 
Den wrote:
I'm looking for somewhere to buy rigid plastic tubing to house a pcb for
a low volume "cottage industry" product. Electrical conduit & irrigation
pipe are almost ideal but the plastic is inconsistent in its makeup,
colour and finish.
Yeah - other than it's colour flaws etc it's pretty much perfect - and very
inexpensive.
Click to expand...
Have you looked at PVC water pipe? It's white (so more consistent naturally),
and made for a more demanding job (retaining pressure long-term) so perhaps
more reliable in makeup.

The underground-rated orange electrical tubing is most more consistent, even
though you didn't want that colour. I've used Clipsal electrical j-boxes for
a similar type of product, but the orange colour was a distinct advantage to
me.

You could try to call Clipsal anyhow - perhaps if you source your conduit
from a single, local, quality company, you'll get a consistent result? Better
than buying at Bunnings anyhow.

Clifford Heath.
 
"Clifford Heath" <no@spam.please.net> wrote in message
news:48e21576$0$4452$afc38c87@news.optusnet.com.au...
Den wrote:
I'm looking for somewhere to buy rigid plastic tubing to house a pcb
for a low volume "cottage industry" product. Electrical conduit &
irrigation pipe are almost ideal but the plastic is inconsistent in
its makeup, colour and finish.
Yeah - other than it's colour flaws etc it's pretty much perfect - and
very inexpensive.

Have you looked at PVC water pipe? It's white (so more consistent
naturally),
and made for a more demanding job (retaining pressure long-term) so
perhaps
more reliable in makeup.

The underground-rated orange electrical tubing is most more consistent,
even
though you didn't want that colour. I've used Clipsal electrical j-boxes
for
a similar type of product, but the orange colour was a distinct advantage
to
me.

You could try to call Clipsal anyhow - perhaps if you source your conduit
from a single, local, quality company, you'll get a consistent result?
Better
than buying at Bunnings anyhow.

Clifford Heath.
Click to expand...

Good idea, I might visit the local L&H and see if they stock better quality
conduit, maybe the irrigation places may have better quality water pipe as
well. The Bunning conduit & water pipe has gone the way of most of their
stock - cheap & nasty.
Thanks.
 
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