I have a rod that my grandfather used many, many years ago, fiberglass. I've been able to remove the guides, thread, even the ferrules and grip, but now I'm left with a bunch of cement/paint. Is there a way to strip that off without compromising the fiberglass tube itself? Or do I need to remove this phyically, sanding carefully so as to not dig into the fiberglass? I'm sure I could buy a new blank for less effort, but it was my grandfather's rod, and I'd like to re-do it. Thanks.