DIY Urethane Foam Filter Dividers - The Planted Tank Forum
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  • 2 Post By Bandit1200
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post #1 of 6 (permalink) Old 05-31-2016, 12:22 AM Thread Starter
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DIY Urethane Foam Filter Dividers

Hello everyone, My first post since joining months ago. I purchased a 2' x 3'- 2" thick piece of cushion foam today from Walmart. I have been looking for dividers on the internet and most people say go with Swiss Tropicals filter foam. I looked up the pricing and for about the same size piece I'm looking at about 80 bucks for a similar size give or take including shipping. The piece I bought was $15.

So my questions. Has anyone used 100% urethane as a divider? Is it toxic or not worth it? Every time I google: "Urethane" foam filter online is just shows me info about polyurethane. Thank you for your time.

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post #2 of 6 (permalink) Old 05-31-2016, 03:17 PM
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If you google "urethane foam vs polyurethane" you'll actually come up with a lot of hits. This is probably all that you need though.
"Polyurethane has been tested and is found that it is not toxic to handle the products in normal conditions. Urethane is acutely toxic to smaller animals like rats and rabbits. The compound does not have any odor but a bitter taste. Some people get nausea after consuming medicines with urethane content in it. If urethane is applied on the skin or administered orally, it is reported to have caused cancer in the smaller animals."
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post #3 of 6 (permalink) Old 06-01-2016, 05:42 PM
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Also, a lot of the cushion foams have various flame retardant chemicals in them. I have some of the poret foam from swiss tropicals, its good stuff, you can rinse it out pretty effectively; it should last years.
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post #4 of 6 (permalink) Old 06-01-2016, 05:59 PM
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I always use generic Chinese poret foam or aquarium foam found online. No issues thus far. I've also used all sorts of filter refill foams and even automotive filter foam replacement foam without issue.

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post #5 of 6 (permalink) Old 06-02-2016, 06:38 PM Thread Starter
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Thank you for all the replies. I will definitely return the urethane foam. Any chance you have the company name for the company that sells the chinese poret foam Freemananana?
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post #6 of 6 (permalink) Old 06-03-2016, 12:11 AM
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Another thing to consider is what type of cell is that foam, open or closed cell. If it is closed cell ( I think it is) you'd have a real hard time getting it down in the water. All of our aquarium type foams are open cell foam.
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