Sika Sikaflex 291i Sealant 70ml

Sikaflex®-291i is a premium 1-component polyurethane sealant engineered for marine environments and general sealing applications.

This non-sag formula cures through exposure to atmospheric moisture, making it ideal for elastic, vibration-resistant joint seals on boats and watercraft. The sealant bonds reliably to multiple substrates, remains permanently flexible, and resists aging and weathering for long-lasting performance.

It can be sanded and overpainted, offering versatility for both functional and aesthetic finishes.

Perfect for interior and exterior marine construction, as well as general-purpose sealing and light bonding tasks where durability and flexibility matter.