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10/12/2017, 03:04 PM | #1 |
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Polyurethane sheet
Hey all, I have some super soft polyurethane sheeting that I’d like to use in my sump under my return pump and skimmer.
My questions are, is it ok to use this in my system? What would it leach into the water? Will it ruin the acrylic that my sump and skimmer are made of? I don’t know exactly what type it is as I get it from work. It’s very soft and is sticky to surfaces. Once you put it down it doesn’t move though it’s very easy to lift it by hand. I believe it is this. We get it from mc master carr. It’s most likely the 3000 series. https://www.mcmaster.com/#standard-p...heets/=19s8t0a |
10/12/2017, 03:09 PM | #2 |
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I couldn’t edit my post.
I believe, It’s the second option down on the left. The super- cushioning. |
10/12/2017, 04:36 PM | #3 |
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I wouldn't trust it, but it's hard to be sure. People have killed tanks by putting a computer mouse pad into the system trying to do what you're doing. A mouse pad is a particularly dangerous idea, but I wouldn't trust any polyurethane. The Wikipedia page has some information in it that illustrates some of the issues.
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Jonathan Bertoni |
10/12/2017, 05:03 PM | #4 |
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Better off with a silicone pad for hot pots @ Bed Bath & Beyond.
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250 gallon mixed reef, 2 Reefbreeder's Photon V 2, Deepwater BLDC 12, DAS EX-3 Skimmer, MTC mini cal, 2-3/4" Sea Swirls, Aquacontroller & 6 Tunze pumps. |
10/12/2017, 05:05 PM | #5 | |
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Quote:
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10/12/2017, 05:57 PM | #6 |
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I don't know enough about the final contents of any polyurethane product to be sure what might happen. They might be safe enough, but I'd wait for some comments from someone with a strong chemistry background before trusting anything, personally.
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Jonathan Bertoni |
10/12/2017, 06:20 PM | #7 |
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I used spray foam in my sump without issue
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Failure isn't an option It's a requirement. 660g 380inwall+280smp/surge S/L/Soft/Maxima/RBTA/Clown/Chromis/Anthias/Tang/Mandarin/Jawfish/Goby/Wrasse/D'back. DIY 12' Skimmer ActuatedSurge ConcreteScape |
10/12/2017, 06:26 PM | #8 |
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Thank you all for the replies.
What’s the opinions on these? They are silicone and just the right diameter for my skimmer. https://www.amazon.com/gp/product/B0...EDZV2SDT&psc=1 |
10/12/2017, 06:33 PM | #9 | |
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Quote:
It's only been in the sump a couple days, After the Irma re-start. So back to the silicone hot pot pads which I'd been using. Edit: Those in your link look better than mine. Thicker and black. Mine are Red,Green,Blue and orange. Last edited by Smokey Stover; 10/12/2017 at 06:39 PM. |
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10/12/2017, 07:37 PM | #10 |
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There are some poly sheets that is Food Safe.. If you know the exact brand of what you have see if you can find msds sheets on them. It will say food or food prep safe if they are OK For the tank. many resins are urethane base products.
NOPE This is not a answer just thoughts
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10/12/2017, 07:51 PM | #11 |
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I agree that food-safe products are likely a good bet.
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Jonathan Bertoni |
10/13/2017, 11:25 AM | #12 |
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from wiki:
"Some noteworthy recent efforts have been dedicated to minimizing the use of isocyanates to synthesize polyurethanes, because the isocyanates raise severe toxicity issues. Non-isocyanate based polyurethanes (NIPUs) have recently been developed as a new class of polyurethane polymers to mitigate health and environmental concerns."
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