Sika Sikaflex®-591: Multi-Purpose Marine Sealant

Sika Sikaflex®-591 is a high-performance, multifunctional sealant designed to meet the demanding requirements of marine applications. Based on advanced Silane-Terminated Polymer (STP) technology, this one-component sealant offers excellent resistance to harsh maritime weathering conditions while setting a new benchmark for environmental and safety standards. 

Key Applications in the Leisure Marine Industry:

• Elastic Joint Sealing: Provides vibration-resistant seals for interior and exterior joints. 
• Versatile Bonding: Bonds well to a wide range of marine substrates, including metals, GRP, and coated surfaces. 
• Weatherproof Sealing: Ideal for applications exposed to water, salt, and UV radiation. 

Sikaflex®-591 is IMO-certified, meeting low spread flame requirements (FTP Code Part 5) for maritime safety. Its formulation is free from isocyanates, solvents, PVC, phthalates, and tin catalysts, making it an environmentally friendly and user-safe choice. 

Performance and Technical Specifications: 

• Application Temperature: 5–40°C 
• Elastic Properties: High flexibility with 500% elongation at break. 
• Service Temperature Range: -50°C to 80°C 
• Shelf Life and Warranty: Sika guarantees Sikaflex®-591 is free from manufacturing defects and meets all technical specifications when stored below 25°C and used within its 12-month shelf life. 

Designed for professional use, Sikaflex®-591 offers excellent processing and tooling characteristics. While it bonds well to most marine substrates, it is not suitable for applications involving teak wood or stress-prone plastics like PMMA or PC. For reliable, eco-conscious sealing in marine environments, trust Sika Sikaflex®-591.