Description
Sikaflex®-591 is a modern MS polymer marine sealant, designed for fast, clean, and reliable sealing applications on boats and yachts.
Ideal for small repairs, maintenance tasks, and emergency sealing, Sikaflex 591 offers excellent adhesion to a wide range of marine materials while remaining permanently elastic. It is solvent-free, low-odour, and highly resistant to UV, weathering, and saltwater exposure.
Supplied in a 70 ml tube, available in black or white, it is perfect for keeping on board for quick fixes where a full-size cartridge is not required.
PRODUCT BENEFITS
- Very high colour stability and mould resistance: Resistant to the harsh maritime conditions
- All-rounder for interior & exterior: Very good weathering resistance
- Fast & efficient workflow: Good adhesion to most substrates with minimal surface preparation
- Health-conscious formula: Solvent-, isocyanate-, phthalate- and PVC-free
- Above & below waterline: Suitable for below the waterline applications on boats







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