Sikaflex 291i Multipurpose PU Adhesive Sealant, 70ml

The Sikaflex 291i is a multipurpose marine adhesive and sealant suitable for interior and exterior applications on boats and yachts.

Its flexible formula absorbs vibrations and movement, providing durable sealing in demanding marine environments.

It offers excellent adhesion to wood, metals, fiberglass (GRP), ceramics and painted surfaces.

Its non-drip formula makes application easy, while its low odor and paintable finish make it a practical choice for boat repairs, sealing joints and marine maintenance.

Technical Specifications

• Type: Multipurpose polyurethane adhesive sealant
• Formula: One-component, moisture-curing
• Material: Polyurethane (PU)
• Properties: Highly elastic, water-resistant and non-corrosive
• Adhesion: Wood, metals, fiberglass, ceramics and compatible painted surfaces
• Skin Formation Time: Approximately 60 minutes
• Working Time: Approximately 45 minutes
• Application Temperature: +10°C to +40°C
• Service Temperature: -50°C to +90°C
• Shore A Hardness: 40
• Certification: IMO Wheelmark approved
• Applications: Marine joint sealing, light bonding and general boat maintenance
• Packaging: 70ml

Available Options

• 70ml – Black
• 70ml – White

Not suitable for plastics such as PMMA (acrylic) and PC (polycarbonate) that may crack under stress. Check material compatibility before application.