Starbrite Boat Guard Speed Detailer and Protectant The Starbrite Boat Guard Speed Detailer and Protectant uses high-tech polymers that bond to fiberglass, polished metal, plastics, rubber, and painted surfaces. Use Boat Guard to add shine, enhance color, and provide a protective barrier against UV damage. Starbrite Boat Guard is an easy to apply formula - simply spray on and buff off to keep your boat looking its best. Boat Guard extends the time between full waxing or polishings. Additionally,