Sealant - Sikaflex® 291i

Sikaflex®-291i is a one-component, polyurethane-based sealant and adhesive designed for marine applications. It cures on exposure to atmospheric moisture and forms a durable, elastic and vibration-resistant seal. 

The product provides excellent adhesion to materials commonly used in marine construction, including wood, metals, painted surfaces, ceramics and plastics such as fiberglass. 

Sikaflex®-291i complies with low flame spread requirements set by IMO and is Wheelmark approved. It is solvent-free, with very low VOC and low isocyanate content, making it suitable for professional use. 

Suitable for sealing, bonding and flexible jointing in both interior and exterior marine environments.

Key Features

• Wheelmark approved
• High elasticity and vibration resistance
• Low odour and non-corrosive
• Paintable after curing
• Excellent adhesion to multiple substrates
• Solvent-free with very low VOC
• Low isocyanate content

Applications

• Marine sealing and bonding
• Interior and exterior joints
• Flexible construction bonding
• Use on wood, metal, ceramics and fiberglass