help about this silicone - The Planted Tank Forum
 
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post #1 of 10 (permalink) Old 07-28-2013, 01:42 PM Thread Starter
Algae Grower
 
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help about this silicone

my tank is 100 gal..

22 inch depth..

4ft length
2ft wide

ive got a few question on the silicone im using..
a bit unsure..

my situation: re-sealing the whole tank..

silicone:

DAP 100% silicone rubber sealant (black) (08642)

http://www.amazon.com/08642-Corning-Silicone-Sealant-10-1-Ounce/dp/B0002YOVFO#productDetails

Windows, Doors, Siding, Vents, Gutters, Molding
indoor/outdoor
long-lasting flexibility
waterproof seal
minimal shrinkage
ASTM C-920, Class 25, Type S, Grade NS

Safe for Food Contact - FDA regulation no.21 CFR 177 2600


my question..

can it withstand the pressure?
ive read, or read too much that i became overbit paranoid on the sealant i will be using..

ive read that, some sealant cant hold above 18inch depth.. etc.. etc..

so.. here i am now..

in case, you have read my tank journal...
i was in the middle of building the tank.. but plagued with leaks..

but now, ive revised the tank.. and is now resealing it..


expert advise needed..

this DAP sealant, bought (4 caulks)
is damn expensive.. already bought it..
its the most reliable looking than the local brands displayed..

and since, im not building a regular small aquarium..
i needed a strong sealant.. so.. i guess, this is the best choice i can get..


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Last edited by yanzco; 07-28-2013 at 02:23 PM. Reason: added info
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post #2 of 10 (permalink) Old 07-29-2013, 10:40 PM Thread Starter
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hmm.. anyone?..


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post #3 of 10 (permalink) Old 07-29-2013, 10:56 PM
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I have no clue about that silicone but people here including myself use GE Silicone I for silicone duty.
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post #4 of 10 (permalink) Old 07-29-2013, 11:11 PM Thread Starter
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yep, i know most of you guys use that brand, but here in my place, theres no GE and other stuff.. just local brands..

this is the most promising available.. so i got no other better choice.. in fact, this one only had a food grade..
the others were cheap construction grade ..
so i just bought 4 of these..


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post #5 of 10 (permalink) Old 07-30-2013, 12:14 AM
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If you read the description on the link you provided it says " cured sealant is mildew resistant" which means it is not aquarium safe ......do not use it! The mildew resistant additives are toxic to fish....and some plants ....
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post #6 of 10 (permalink) Old 07-30-2013, 12:27 AM
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Here are all the chemicals in it
http://www.dap.com/docs/msds/00008642_english.pdf


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post #7 of 10 (permalink) Old 07-30-2013, 02:18 AM Thread Starter
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Quote:
Originally Posted by stealthy hunter View Post
If you read the description on the link you provided it says " cured sealant is mildew resistant" which means it is not aquarium safe ......do not use it! The mildew resistant additives are toxic to fish....and some plants ....
but aint it food grade safe...

the other DAP white / clear has included mildew resistant..
and had no food grade safe..

but this one didnt say anything about it being mildew resistant..
and has food grade safe..


yet, ive heard that as long as its food grade safe. it is absolutely safe for the fishies..


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post #8 of 10 (permalink) Old 07-30-2013, 02:23 AM
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I used dap before on a diy canister and it held.

40B Cold water planted
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post #9 of 10 (permalink) Old 07-30-2013, 05:44 AM
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Quote:
Originally Posted by yanzco View Post
but aint it food grade safe...

the other DAP white / clear has included mildew resistant..
and had no food grade safe..

but this one didnt say anything about it being mildew resistant..
and has food grade safe..


yet, ive heard that as long as its food grade safe. it is absolutely safe for the fishies..
Indeed. Unless you can get ahold of the particular bond strength for your variety, nobody can even guess at whether it's going to be able to hold or not. The alternative is to simply try it. Once it's cured, put your tank outside, filled, and watch for any movement whatsoever in the seams.
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post #10 of 10 (permalink) Old 07-30-2013, 06:08 AM Thread Starter
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i see.. so i guess i have to use it.. good luck to me..

thanks guys


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