Is a homemade rock backdrop made with non-toxic paint safe for a crested gecko?

[brooke]

I made a fake rock background for my gecko terrarium using a fish safe foam insulation (made for ponds). I tried coating the insulation with silicon as many people online suggested, however I quickly ran out before finishing. Instead of dealing with the silicon I painted the entire backdrop with non-toxic water based paint, coated it with coconut fiber and small rocks. After letting it dry overnight I coated the backdrop with a non-toxic weather proof sealant to resist paint chipping when exposed to moisture. All of the products I used are non-toxic or "fish safe" but I just wanted to make sure that this backdrop would be safe to put in with the crested geckos..

thanks for the help!