Has anyone ever made up an extension pipe for applying expanding foam in hard to reach areas? I need a ~50cm reach and was thinking some PVC tubing might do the job, or perhaps some plastic plumbing pipe that I've got hanging around if I can get ensure a good seal against the canister.

Any suggestions/experiences?

On Sunday, 4 November 2018 17:37:35 UTC, Mathew Newton wrote:
Has anyone ever made up an extension pipe for applying expanding foam in hard to reach areas? I need a ~50cm reach and was thinking some PVC tubing might do the job, or perhaps some plastic plumbing pipe that I've got hanging around if I can get ensure a good seal against the canister.

Any suggestions/experiences?

I have done it, no problem. I had a bit of flexible plastic tube. You need a good seal onto the can tube of course, I used electrical tape.
You waste a bit of foam of course

On 04/11/18 17:37, Mathew Newton wrote:
Has anyone ever made up an extension pipe for applying expanding foam in hard to reach areas? I need a ~50cm reach and was thinking some PVC tubing might do the job, or perhaps some plastic plumbing pipe that I've got hanging around if I can get ensure a good seal against the canister.

Any suggestions/experiences?


You can, but 2 problems:

1) The foam will keep coming out after the valve is closed as you now
have a tube full.

2) Said tube tends to bung up in short order. For a very quick one off,
it will work. For a long run of work, it will be a pain (I've tried).

You can get long reach guns with the valve at the tip, but the longer
they get the harder it gets to source.

Here's a 2ft one, if you're not in a hurry (US) - 3ft ones exist too.

If it's a one off short use, this (whilst suffering from the problem
above) will get you by:

https://www.amazon.co.uk/Professiona.../dp/B00H49UIL6

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On Sunday, 4 November 2018 17:37:35 UTC, Mathew Newton wrote:
Has anyone ever made up an extension pipe for applying expanding foam in hard to reach areas? I need a ~50cm reach and was thinking some PVC tubing might do the job, or perhaps some plastic plumbing pipe that I've got hanging around if I can get ensure a good seal against the canister.

Any suggestions/experiences?

I went to a toy shop & got a flag & used the plastic tube. For one bit I needed a little more length so wound some packing tape round the end. Worked fine. Cost 50p.


NT

Mathew Newton writes:

Has anyone ever made up an extension pipe for applying
expanding foam in hard to reach areas? I need a ~50cm reach
and was thinking some PVC tubing might do the job, or
perhaps some plastic plumbing pipe that I've got hanging
around if I can get ensure a good seal against the canister.

Any suggestions/experiences?

I used a length of silicone rubber pipe (Œ€8mm or so) that I had
lying around after a plumber left it. I operated the can while a
friend operated the business end. As to experience: the first
time we started it went OK for a minute or two, then the pipe
popped off the end of the gun and splattered us both with foam.
She wasnt pleased. So use of a pipe clip or tape is
recommended.

--
Jón Fairbairn
http://www.chaos.org.uk/~jf/Stuff-I-dont-want.html (updated 2014-04-05)