Can I use aquarium sealant to seal PVC? - The Planted Tank Forum
 
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post #1 of 11 (permalink) Old 03-26-2008, 03:04 PM Thread Starter
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Can I use aquarium sealant to seal PVC?

I am going to build a rex reactor and I was wondering if aquarium sealant is pvc safe? I already have some. This reactor will be submersed in the back of my aquapod.
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post #2 of 11 (permalink) Old 03-26-2008, 03:22 PM
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If you didn't say that the reactor would be submersed, I'd be telling you to avoid trying. Silicone is pvc safe, but probably not the best idea. PVC cement actually welds the pieces together. Give it a try and tell us how it works for you.

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post #3 of 11 (permalink) Old 03-26-2008, 03:28 PM Thread Starter
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Is PVC cement safe to use if I will be submersing the reactor?
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post #4 of 11 (permalink) Old 03-26-2008, 04:16 PM
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PVC Cement is used in the plumbing to your tap, it wouldn't be any more harmful there than in your reactor. It is generally accepted as harmless after it cures and is flushed with water for several minutes.
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post #5 of 11 (permalink) Old 03-26-2008, 04:34 PM
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Yeah, I thought the same thing but water thats come in contact with it is supposed to still be safe to drink/bathe in so you would be good to go.
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post #6 of 11 (permalink) Old 03-26-2008, 05:22 PM
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I agree PVC cement is better, I have used both cement and silicone on the same piece of equipment and the silicone is somewhat loose and moveable. The areas that are cemented will not come apart unless I cut them.
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post #7 of 11 (permalink) Old 03-26-2008, 06:01 PM Thread Starter
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Thanks for the help.

Is there any specific brand of PVC cement that I should use?
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post #8 of 11 (permalink) Old 03-26-2008, 06:57 PM
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Quote:
Originally Posted by Contrast View Post
Thanks for the help.

Is there any specific brand of PVC cement that I should use?
PVC cement is pvc cement. Make sure to prime the pieces before applying the cement. I use the clear primer, but you can use acetone too. Same thing for the most part. You just want to get it clean.

Once the reactor is constructed let it cure for 24 to 36 hours to allow the fumes to dissapate.

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post #9 of 11 (permalink) Old 07-04-2008, 12:36 AM
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i didnt prime any of my surfaces..is this going to be a problem?

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post #10 of 11 (permalink) Old 07-04-2008, 01:36 AM
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it probly will not make the bonds as strong as they could be. if you wana be a 100% sure about the cement being safe use the gorila clue brand it is MTBE and BTEX free unlike the other brands. i know this because the NYSDEC requires us to use it for groundwater monitoring wells
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post #11 of 11 (permalink) Old 07-04-2008, 01:40 AM
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drat this is after ive already done the work...oh well..

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