Menards had this XtraBond®250 silicone on sale, 12 bottles for $10. It says that it is FDA approved as food safe, 100% silicone with an acetoxy base but it is mildew resistant. Would this be safe for PDFs? I looked at the MSDS sheet on it but I'm not sure if it would be okay or not, I don't understand what all the information means in relation to the safety for my frogs.

Any help would be much appreciated.