... ester resin. The glass fibers impart strength to the rod while the vinyl ester resin imparts excellent corrosion resistance ... slide guides, boat, kayak2) Tool: umbrella shaft, umbrella rod, curtain rod, fence post, handrail, frame for cases and bags, oil ... and dormers, chimneys, insulators, cable conductor, cable tray, antenna, transformer air duct spacer sticks, cable support trays, switch actuators ...