Originally Posted by maltMonkey
So how safe is silicone? I couldn't find that blue stuff yet, but I found some Silicone II caulking that is rated up to 400°. I'm a bit hesitant to use it because it says on the label not to use it in aquariums or FDA related applications.....
Don't use it. I was looking at that stuff a couple days ago and was talking to one of the guys at the hardware store about it. He went into depth about it, but basically, don't use it. I think you're best bet would be aquarium safe sealant (silicone). I think I'm going to end up using that, but I'm still trying to find out how much heat it can stand.