Does Nexgen Ceramic Spray work on fiberglass? March 12, 2024 13:32 Yes, Nexgen Ceramic Spray works great on fiberglass, including boats. Related to ceramic Related articles What is the cure time for Carbon Flex? What surfaces does Nexgen Ceramic Spray work on? How do I prepare my car before applying Nexgen Ceramic Spray? Removing wax from your before before applying ceramic spray. What's the difference between Exterior and Interior Ceramic Spray?