Anyone used this sealant before?
http://www.amazon.com/gp/dp/B00EZB1...&tagbase=dell-metro&tbId=Rn(tirp=;j[4d=`(WOi%
http://www.amazon.com/gp/dp/B00EZB1...&tagbase=dell-metro&tbId=Rn(tirp=;j[4d=`(WOi%
American Sealants Inc.
- Thread starter Tom39
- Start date
Epicreefer
New member
I use it all the time to build 500-1000 gallon tanks, it works well. Make sure to clean your glass well, paper towel soaked with acetone is good, I have heard a lot of bad things about windex...
RocketEngineer
Space is big.
McMaster Carr 7545A472
$9.88 Each for the CORRECT stuff.
$9.88 Each for the CORRECT stuff.
Thanks but the description says "do not use in underwater applications".
RocketEngineer
Space is big.
Its a CYA statement. You need to let it fully cure before exposing any silicone to water or risk contaminating the water. A full week is a good start. I use the sniff test; if it smells, its not cured. Longer is better so don't rush it.
RocketEngineer
Space is big.
If the tanks leak, you need to rebuild them. If they don't you shouldn't be messing with the seals........Why are you resealing?
uncleof6
Active member
There is no silicone, packaged from the ORIGINAL manufacturer, (not repackaged/rebranded) that does not say "not for use under water."
It is not really a CYA thing, as silicone will degrade under constant emersion in water. (Why the tank sealing is two stage process: structural seam, and inner seal that protects the structural seam from damage both mechanical, and chemical breakdown.
The net result of the lawsuits concerning silicone and aquariums was the removal of the wording "aquarium silicone." Only one company was involved in the lawsuit (GE) so the ruling only affected GE. There was no ruling that the words "not for use underwater" be included on the label. "Not for aquarium use" is the CYA statement. The lawsuits only involved one particular formulation of silicone as well: GE012A, which you might be more familiar with as GE Silicone I, Window & Door...(Which is now manufactured by Momentive, who bought out GE Silicones lock, stock, and barrel, a number of years ago.
I don't know much about this ASI stuff, however, the MSDS lists American Sealants Inc. as the supplier, not the manufacturer. What the actual story is on this product, I don't know... I am not saying it is bad, just that I don't know. ...Only two other products (that I am aware of) are taking the risk by using the word "Aquarium" on their product: Dow Corning subsidiery "DAP," and Aqueon/AGA (a Dow Corning product.) There is more to building tanks than the silicone—they are both consumer grade sealants not adhesives; it only takes one "problem child" and those will disappear as well. Dow Corning does make some silicones that are suitable for tank building: DC 795 in particular (GE Silicone II on steroids,) is used widely by large public aquariums.
Pro builders are using The RTV100 series by a large majority. Some smaller builders (still pro) use SCS1200 series...Aqueon/AGA uses RTV108, and their branded silicone is made by Dow Corning... a small percentage use "other."
As RE stated, however, if it ain't broke—don't fix it...
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