Anyway, I contacted CTMH, and this is what they said…

“Currently, the company does not replace stamps that tear or break down due to use. While our stamps are durable, some of the thin or delicate designs can be torn, so we advise the Consultants and customers use care when handling the stamps.

To fix your stamp, you can try using Liquid Glass to reattach the torn bits together. Just put a small bit of the Liquid Glass on the torn part, then hold the pieces together and wipe of the excess glue. Keep holding the pieces together for a good two minutes or so, and this may reconnect the stamp pieces. Though this is not a guaranteed or official technique, I have seen many Consultants recommend it.”

So sad…

Apply Liquid Glass to fix the clear stamp.

Clean off the excess glue. And let it dry.

I couldn’t tell from the image if the stamp was ever broken. Left image was stamped before the stamp was damaged.

I was able to clean the fixed stamp on the stamp cleaning pad, and it didn’t come apart. Let’s hope it’ll stay that way for a long time.