I have a green leather that I want to adhere to a rock. It has only a small amount of the original rock showing, it's pretty much grown over the original rock it was mounted to when it was a frag. I was planning on using the HoldFast or AquaStick putty to adhere it but it looks like it will get some of the epoxy touching at least some of the base. Anyone know if this stuff will cause tissue recession or harm to it?