Sudbury Elastomeric Marine Sealant is a one-part sealant designed for demanding marine environments. Packaged in a 10 oz white cartridge, it delivers reliable adhesion, flexibility, and long-lasting watertight seals for joints on boats and watercraft.
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Size: 10 oz cartridge
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Color: White
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Formulation: One-part elastomeric marine sealant
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Skin time: Fast skin in about 10 minutes
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Full cure: 24 hours
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Adhesion: Adheres without primers to fiberglass, glass, plastic, metal and wood
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Primer-free adhesion: Adheres without primers to multiple substrates, simplifying prep
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Cleanup: Easy cleanup with mineral spirits
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Temperature range: -20°F (-28.9°C) to 120°F (48.9°C)
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Flexibility & compression: Excellent flexibility and compression capability; twists, bends, and expands while maintaining a reliable seal
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Resistance: Water and chemical resistant to teak cleaners, oil, diesel fuel and salt water
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Applications: Heavy-duty sealing above or below the waterline; sealing ports, bed hardware, and stopping leaks
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Finishability: Wet-sandable and paintable after curing
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Usage notes: Not recommended for wooden deck seams or areas subject to gasoline exposure
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Safety: California Prop 65 warning: Toluene
Sudbury Elastomeric Marine Sealant provides durable, flexible seals that withstand harsh coastal conditions. Its primer-free adhesion simplifies prep work, and the fast skin and cure times help projects move forward quickly. After curing, it can be wet-sanded and painted to match boat surfaces for a seamless finish. Suitable for above- or below-waterline applications, it protects joints from leaks while accommodating movement from waves and temperature changes. Note safety warning for Toluene under Prop 65.
