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Which synthetic resins are suitable for fabrication of plumbing components e.g pipe sections, metering?
I'm trying to find an easy way to mold/house/en-case a custom designed data logger.
I'm trying to avoid the complexities of molding HDPE or fibre glass reinforced plastics

EDIT: The logger monitors piped water for pressure, temperature & possibly flow rates, implying that . I'd also like to use it outdoors so it would be nice if the housing likes UV rays.

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closed as off-topic by mdma Aug 4 '13 at 18:00

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Did you intend this question for the home improvement site instead of the homebrewing site? –  BostonJohn Aug 2 '13 at 18:24
    
@BostonJohn I was looking for a suitable SE site and chose to post at the chemistry.SE & diy.SE sites also. The diy.SE site (home improvement) turned out to be a wrong choice :) –  Moje Aug 3 '13 at 13:08
    
This question appears to be off-topic because it is about moulding/plumbing/plastics. –  mdma Aug 4 '13 at 18:00

1 Answer 1

up vote 3 down vote accepted

I'm guessing you are talking about making a data logger to monitor fermentation temps, mash temps, etc. Your question is quite vague and you need to clarify it to get better answers. What temps are you talking about, environmental conditions, etc. What parts are going to contact the beer/wort? A drawing would help.

I've used weatherproof electrical boxes to house electronics. Several websites, like http://www.buyfittingsonline.com/ sell stainless fittings that you can use for tubing or enclosing temp probes. I use high temp food grade silicone tubing in my rig along with stainless steel.

For sealing purposes or molding parts to hold electronics, you can use Sugru (https://sugru.com/about), which should handle most of your needs. It works like putty, cures overnight, handles high and low temps, and bonds pretty well to most surfaces. It remains somewhat flexible (like silicone) which may be good or bad based on your specific use. Be careful in that Sugru has a short shelf life (must use in 6 months) and is not certified food-safe, although its properties seem to indicate that it should be. Their website says:

Once cured, sugru is inert, but people can be allergic to anything, so we have to tell you to be careful. sugru isn't certified as food safe yet, but we're working on it. For now, please resist the urge to eat it.

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How well does sugru and putty handle UV rays or sunlight? –  Moje Aug 3 '13 at 17:07
    
See sugru.com/pdfs/tds.pdf They rate it as 'Excellent' on Ozone/UV-Resistance. Putty is something else entirely - you'd have to look up specifics for whatever putty you are talking about. I may have confused you when I said it 'works like putty' - in that context I mean that it has the consistency of putty while you are forming it until it cures. –  Steven Bone Aug 6 '13 at 21:26

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