Diamond789: Hi lucidfjb,I break my fingernails all of the time working on fossils to remove them from solid rock,how do you use filters for repair ??. Welcome to the thread !
Just tear off a piece big enough to cover the split in all directions, brush some crazy glue over the split, and stick on the paper. After it dries, I top it off with a clear top coat. The piece of filter (or teabag) gives it extra holding power - more than just the glue alone. Thanks for asking. And thanks for the welcome!