TPO roofing liner-fish safe?

[sevank21]

Any one know if it's fish safe? Someone local is selling 45mil TPO liner for real cheap.

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[DBLN8]

TPO is used on a lot of "green roofs" now days but I don't know if that makes it fish safe. I'll be keeping an eye on the responses to this I have access to a roll of TPO and was thinking about using it for a pond liner.

 

[sevank21]

Ya someone local is selling it brand new. It'll cost me $70 for the size I need, other wise "fish safe" liner will cost me near $300.

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[MyGiants]

Did some research on TPO "Thermoplastic Polyolefin".
What I found is Polyolefin is used a lot in food packaging. The only hazard is if its heated or melted it can result in hazardous fumes and/or gases.

http://www.wisegeek.org/what-is-polyolefin.htm

http://www.setonresourcecenter.com/msdshazcom/htdocs/MSDS/MISC/PDF/WCD00106.PDF

 

[sevank21]

Sweet that's great to know

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