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Old 12-01-2007, 09:48 PM   #1
 
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Default PVC/polyolefin

I'm currently embarking on a project/business effort which will involve the use of either heat shrinkable PVC tubing or heat shrinkable polyolefin tubing. However, I am not sure which one would be best.

Therefore, I have a few questions and would greatly appreciate it if you guys could help me out.

1) According to the research I've done on this topic, PVC has better clarity, colorability, UV resistance, chemical resistance, and is less expensive while polyolefin has a wider operating temperature range and an extended shelf life. But are there any physical differences (thickness, surface texture, etc.) between PVC tubing and polyolefin tubing?

2) Aside from the ones listed above, can you think of any more pros and cons of each type of tubing?

3) When doing the heat shrinking, would either one be toxic in any way?
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Old 12-01-2007, 09:55 PM   #2
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Generally when we buy heat shrink we do not know or care what the material is, as long as it is an insulator, proper size and is for use in a wet location approved for the use.
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Old 12-01-2007, 09:56 PM   #3
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Default Good evening

Quote:
Originally Posted by Elizabeth View Post
I'm currently embarking on a project/business effort which will involve the use of either heat shrinkable PVC tubing or heat shrinkable polyolefin tubing.
Elizabeth, May I ask what the application is?
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Old 12-01-2007, 11:29 PM   #4
 
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The tubing will not be used as an insulator necessarily (which is why I'm not concerned so much about the chemical aspects/reactions of each type of material but rather interested in knowing the physical differences). Instead, it will be used to wrap around wooden dowels, similar to how it appears in the picture below:



Thanks for the responses thus far.
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Old 12-02-2007, 10:08 AM   #5
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Elizabeth. I only use heat shrink as supplied over the counter at an electrical distributors. It moulds well around odd shapes and wears well. Keeps its colour too. Other than that I would not know of any chemical or disparate differences between types. get whatever is cheapest and practicable.
Have you considered dipping your dowels in a bath of uPVC or coloured Latex? May save you some time and money in the long run.

Frank

Last edited by frank; 12-03-2007 at 03:18 PM.
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