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Originally Posted by 92gallonreefer I have seen this on many items before and all i can think of it that it will hold under a marine inviroment but may let off a chemical that is not safe for an aquarium. |
You are dead on the money 92.

They are used on boats and anything else that is exposed to water and also the corrosive salt water that tends to break down other non specified adhesive agents and mediums. This product is fine if used only as an external adhesive for the marine hobbiest and does not come in contact with the water. There's probably just one chemical in there that causes it to be toxic. I'm thinking that Manny might know of an adhesive for this purpose.