Hi: I've been looking for a Bell Magic and found a 2004, it's Kevlar and I'm guessing it has a gel coat because it's the Almond color? I have not seen it yet but the owner mentioned that it has it's share of bottom scratches. I was wondering if I could snap a 4" waterline and coat the bottom with epoxy and graphite powder? Is the epoxy compatible with the gel coat material?
THANKS!!!

You can put epoxy over gel coat, but gel coat on an epoxy finish is problematic.

On the other hand, maybe just leave it alone.

I used epoxy to repair my Magic 20+ years ago. It has held up well and is structurally sound. The only problem is with time the epoxy has turned a dirty milky color. If you are using epoxy to make it look good it will for a while then it will slowly turn ugly.

Both stems are beat up pretty badly so since I would be repairing the stems I thought I'd spruce up the bottom as well. Thanks for the info!

Epoxy and graphite would be the way to go. I’d even add black epoxy dye. A few drops goes a long way.

Prep wise I wouldn’t sand any finer than 150 grit. Clean it thoroughly with alcohol, and then when you think its clean, clean it again.

Brush it on, even it out with a foam roller, hit it with a heat gun to pop the bubbles, then let it level on its own.