Sealant workes? - The Planted Tank Forum
 
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post #1 of 14 (permalink) Old 03-29-2005, 01:48 AM Thread Starter
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Sealant workes?

Does this sealant work for my DIY co2 project? Here's some of the picts of it:







I't used for construction of the interior of the house. If it doesn't work, please tell me what other type of sealant works...thanks

-Jeff

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post #2 of 14 (permalink) Old 03-29-2005, 01:52 AM
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Could you post the ingredient list?

Moved to Tucson.
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post #3 of 14 (permalink) Old 03-29-2005, 02:13 AM Thread Starter
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Sure...They use Calcium Carbonate (471-34-1) Latex Emulsions, Butyl Benzyl, Phthalate (85-68-7), Mineral Spirits (8052-41-3), Titanium Dioxide (13463-67-7), and other additives. It says Siliconized Acrylic Sealant on the tube. If it doesn't work, what else should I use?? Also, where can I get the sealant?


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post #4 of 14 (permalink) Old 03-29-2005, 03:17 AM
 
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I would'nt recommend it for aquarium use. It being an exterior caulking it will certainly contain a fungiside or mildewcide that may leech into the tank.
Look for an aquarium specific caulking. You should be able to find some at your lfs or some local hardware store.
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post #5 of 14 (permalink) Old 03-29-2005, 03:51 AM
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I was thinking pure Silicon, this confirms it: http://www.petsolutions.com/Default....temID=15965003


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post #6 of 14 (permalink) Old 03-29-2005, 03:55 AM Thread Starter
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All right...thanks. I'll look around at my local hardware store for some aquarium silcone.

Thanks

-Jeff

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post #7 of 14 (permalink) Old 03-29-2005, 04:18 AM
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I think it's all the same, nothing sticks to 100% silicone so they don't use any mildew or algaecides. I guess the 100% would have ruled that out anyhow


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post #8 of 14 (permalink) Old 03-29-2005, 04:15 PM
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The stuff you have is definitely not safe. Many aquarium safe brands of silicone don't say so on the label. Some even say "not intended for prolonged underwater use." Ha. Those which explicitly say so usually cost at least twice as much (jerks.)

GE and DAP both make good cheap brands. Usually marked "window and door." Avoid anything for the bathroom or kitchen. Make sure it's silicone II, not I, although sometimes even this is not specified.

NO latex, nothing benzyl or diazolidinyl, phthalates, CaCO3, etc. I suppose inert whiteners/opacifiers like titanium dioxide are OK but what's the point unless you want it white.

Another tip-off for safety is "food safe." If it's 100% silicone and you can find "ASTM Specification C 920, Class 25, Type S, Grade NS" on the label, you're good to go.
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post #9 of 14 (permalink) Old 03-30-2005, 01:46 AM
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First off I don't understand why you need sealant for your DIY CO2 project. I have built several DIY systems and never once used a drop of any kind of sealant.

Second off as long as it's not in contact with the water or DIY mix it will be no problem.
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post #10 of 14 (permalink) Old 03-31-2005, 03:21 AM Thread Starter
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I'm going to use it on my diy co2 I need to make the hole around the tube where it goes into the bottle to be airtight. Thanks for the info guys.

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post #11 of 14 (permalink) Old 03-31-2005, 03:44 AM
 
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You can pick up a small tube of aquarium sealant from most pet stores. The store near me sells small tubes of Allglass sealant for $1.50.
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post #12 of 14 (permalink) Old 03-31-2005, 03:46 AM
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i think you made a mistake Pinchy1, its GE silicone I (ge012A) that can be used for aquariums not GE silicone II. since GE silicone II says not for use in aquariums

125 ga. Pressured co2. T5ho
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post #13 of 14 (permalink) Old 03-31-2005, 04:00 AM
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If u really gotta use silicone....pick one up from petsmart or petco....

but like rex said....if it aint coming into contact with water...why bother...

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post #14 of 14 (permalink) Old 04-01-2005, 01:42 PM
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If you construct the DIY rig correctly you will have no need for sealant. Just drill the hole in the cap smaller than the OD of the tubing. Then cut the tubing at an angle and use pliers to pull it though the hole. I have found that with standard air line tubing an 11/64ths hole works perfectly.
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