3M Marine Silicone Sealant Clear 3 oz – Waterproof Mildew Resistant Flexible Caulk for Boats

3M™ MARINE SEALANT SILICONE / CLEAR - 3 oz.

3M™ Marine Grade Silicone Sealant is a premium, one-component silicone designed for the demanding conditions of marine environments. This flexible, waterproof sealant is mildew-resistant and maintains a clear, non-yellowing finish for above-waterline applications. It withstands high temperatures, resists shrinking and sagging, and remains flexible even after prolonged exposure. The sealant adheres effectively to bare and painted metal, fiberglass, glass, non-oily woods, plastics, and abraded rubbers, making it ideal for a variety of marine sealing needs.

• Marine-grade silicone for boats and watercraft
• Waterproof and mildew-resistant
• Flexible, non-yellowing, and weather-resistant
• Easy to apply; does not shrink or sag
• Adheres to metal, fiberglass, glass, wood, plastics, and more

Recommended Applications:

• Electrical hatch sealing
• Dashboard components
• Port lights
• Above-waterline interior and exterior sealing

Safety data sheet SDS