PVC glue drying time - The Planted Tank Forum
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post #1 of 13 (permalink) Old 01-29-2016, 05:50 PM Thread Starter
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PVC glue drying time

So I used 'Christy's red hot blue glue' to assemble parts for a water changing tool. It says to leave the joints undisturbed for at least 10 mins, it's been over 30 but the glue still smells.
(It's supposed to reach full strength in 24 hours.)
I'm a little concerned about using it to add water to the tank since it still smells so strongly. What do you think? Wait until the smell dissipates?

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post #2 of 13 (permalink) Old 01-29-2016, 06:06 PM
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I think I'd wait till the smell is gone. The smell is usually the solvents fuming off. Is the joint set up so you can't move it or is it just the smell you are worried about? Just wondering if you used a primer first. The description I read says it's not necessary for pressurized systems under 4" but that may result in a slower set up time. I've never used a PVC glue without primer. Usually it sets up so fast that you had better have things lined up right because after a couple of seconds you are not going to move it.

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post #3 of 13 (permalink) Old 01-29-2016, 06:18 PM Thread Starter
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I think I'd wait till the smell is gone. The smell is usually the solvents fuming off. Is the joint set up so you can't move it or is it just the smell you are worried about? Just wondering if you used a primer first. The description I read says it's not necessary for pressurized systems under 4" but that may result in a slower set up time. I've never used a PVC glue without primer. Usually it sets up so fast that you had better have things lined up right because after a couple of seconds you are not going to move it.
I didn't use a primer bc of that under 4" part that you read.
The joints are totally set, though. It was just the smell I was worried about.
Maybe I'll try flushing it with some water to see if that makes it go away faster. I'm impatient! Lol

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post #4 of 13 (permalink) Old 01-29-2016, 06:23 PM
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Typically these kinds of things just off gas for a while.
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post #5 of 13 (permalink) Old 01-29-2016, 06:27 PM Thread Starter
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Typically these kinds of things just off gas for a while.
Is it okay to use to put water into a tank, then?

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post #6 of 13 (permalink) Old 01-29-2016, 06:49 PM
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I would not. Depends on how you feel about any fish you have, though. But If there is something volatile in the smell, once in the tank water, there is little way to recover. Growing plants is one hobby that certainly teaches us the value of patience! Hurry today and you may have to spend a lot of time getting new fish next week?
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post #7 of 13 (permalink) Old 01-29-2016, 06:57 PM Thread Starter
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I would not. Depends on how you feel about any fish you have, though. But If there is something volatile in the smell, once in the tank water, there is little way to recover. Growing plants is one hobby that certainly teaches us the value of patience! Hurry today and you may have to spend a lot of time getting new fish next week?
Sigh. So true!
Guess now I don't have any excuses to avoid the stuff I'm supposed to be doing...

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post #8 of 13 (permalink) Old 01-29-2016, 07:24 PM
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The stuff is used for drinking water so it can't be that bad.

The reef guys seem pretty blase about cure times and say ~15 minutes on the short end.
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post #9 of 13 (permalink) Old 01-29-2016, 08:13 PM
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When I plumb up stuff around the house I hit it with full pressure after about 15 minutes. Yes. The water does smell for a bit but it clears pretty quick. I'm still alive. I've got 4 thumbs and glow in the dark but what the heck.
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post #10 of 13 (permalink) Old 01-29-2016, 08:17 PM Thread Starter
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I've got 4 thumbs and glow in the dark but what the heck.
Good party trick!

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post #11 of 13 (permalink) Old 01-29-2016, 08:29 PM
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I hope you got a good quality PVC weld glue.
I like using Tangit, the type used for pressured hoses like in swimming pool pump systems.

Handy stuff to have around the house, if you have small children prone to breaking plastic toys too.

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post #12 of 13 (permalink) Old 01-29-2016, 08:35 PM
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I hope you got a good quality PVC weld glue.
I like using Tangit, the type used for pressured hoses like in swimming pool pump systems.

Handy stuff to have around the house, if you have small children prone to breaking plastic toys too.
I've not found that it matters much with PVC glues here in the States. Most of the BBS in my area carry the Oatey brand.

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post #13 of 13 (permalink) Old 01-29-2016, 10:12 PM
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Part of my thinking on the cement is that I have had it in my eyes. When doing waterline repairs on a community system we sometimes had to do the work while things were wet and that is not a good way to go about getting a good seal but then you do what you have to do to get the water back on. Just because you are a volunteer and donating the time, does not mean the neighbors don't pitch a fit!
So you stick it back together and it doesn't hold and blows water all over. That water and cement burns like fire in my eyes so I can only guess what it would be like for a fish swimming in it. I've got a feeling it would make chlorine look like a piece of cake so I just don't risk it.
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