Sikaflex 591 sealant adhesive

Sikaflex®-591 - high-performance sealant for maritime applications

Developed for the extreme conditions at sea, Sikaflex®-591 offers an outstanding combination of flexibility, weather resistance and durability. This 1-component sealant based on silane-terminated polymer (STP) technology is the ideal solution for anyone who values quality and reliability.

Essential properties:

• Elasticity: Very elastic and adapts to the movements of the materials.


• Weather resistance: Extremely resistant to UV rays, rain and other environmental influences.


• Indoor and outdoor use: Suitable for use both outdoors and indoors.


• Colour stability: Long colour stability that ensures a uniform appearance.


• Adhesion spectrum: Broad adhesion spectrum that covers a wide range of materials.


• Processing: Very good processing and smoothing properties for easy application.


• Environmentally friendly: Free from tin, phthalates, isocyanates, solvents and PVC.

Application areas:

Sikaflex®-591 is ideal for use in marine engineering and other maritime applications where reliable sealing is required. Thanks to its versatile properties, it can also be used indoors where high elasticity and weather resistance are required.

Packaging size:

Available in a practical 300ml cartridge.