Expanding foam background question

I'm making a background for my crested geckos tank and I have silicone that I was using in my bathroom but I wasn't sure if it's safe to put in his tank it's called true seal 100 it says it's 100% acetoxy silicone NSF it says mold resistant... I know the ge 1 brand works so I don't mind buying that at all I just have this on hand and was wondering. I've looked online for an hour and haven't found anything


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I would not recommend it, it sounds like it has mold inhibitor. You would find it difficult to grow plants for sure, not wild about potential health concerns for the inhabitants either. You can order silicone from NEHERP and know that it is safe