New PVC closure just arrived - Which silicone product?

[Animallover3541]

Can you cite a source for this claim, please?

BTW, it isn't the fact that a sealant is "100% silicone" that makes it safe or unsafe for animal use.

Sorry, I should have clarified that I meant that all of their products now include fungicides instead of just saying that they aren't 100% silicone. Some of them say they are still 100% silicone, but claim to be mold resistant. I'm not sure whether they are just saying all their products are now mold free because it can be hard for mold to grow on silicone or if they actually contain fungicide. Either way, I stopped buying their products just to be safe.

Here's their current product page: https://gesealants.com/fill-in-the-gaps/silicone/