Dear Friends, I am rebuilding both of my main mast furlers (Main and outhaul). I'm repainting the mast and boom, so I've removed these units, stripped them down and sandblasted them. So, what's the deal with the heavy, rubber-like coasting that was on the gearboxes of these units. I'm perplexed. Heat, protection, what? Anyone know what the material was and should I replace that material or just repaint them?