3M 7010367955 Marine 4000 UV Polyurethane Sealant Black 10 oz Cartridge

3M Marine 4000 UV Polyurethane Sealant is a premium, single-component sealant designed specifically for above and below waterline applications on boats and marine vessels. This black formula provides superior adhesion and flexibility for demanding marine environments.

Key Features:

• UV-resistant formula maintains color and flexibility when exposed to sunlight
• Excellent adhesion to fiberglass, wood, metal, and painted surfaces
• Remains permanently flexible to accommodate joint movement and vibration
• Can be applied above or below the waterline for versatile marine use
• Paintable with most marine paints after proper curing
• Resists saltwater, weathering, and common marine chemicals
• 10 oz cartridge fits standard caulking guns for easy application

Ideal for sealing deck hardware, portlights, hatches, hull fittings, and other marine applications where a durable, flexible, waterproof seal is required. The polyurethane formula provides superior performance compared to silicone sealants in marine environments.