Sikaflex-591 sealant
- For interior and exterior
- High weather resistance
- Permanently elastic
Universal adhesive and sealant for interior and exterior use.
Sikaflex-591 is a multifunctional sealant based on Sika's Silane Terminated Polymer (STP). With its excellent resistance to harsh marine weathering conditions, it can be used for a wide range of applications. The sealant is easy to use and adheres well to the most common substrates in the maritime industry.
Sikaflex-591 exceeds common environmental and safety standards and sets a new benchmark from an ecological point of view. Sikaflex-591 meets the low flame spread requirements (FTP Code Part 5) set out by the International Maritime Organisation (IMO).
Benefits of Sikaflex-591
- Exceeds EH&S standards.
- Excellent weather resistance.
- Free of isocyanates, solvents, PVC, phthalates and tin catalysts.
- Bonds well to a wide variety of marine substrates.
- Highly elastic.
- Very good processing and tooling characteristics.
- Can be painted.
- IMO compliant.
What is Sikaflex-591 used for?
Sikaflex-591 is a versatile adhesive sealant specifically developed for marine applications. It is the ideal product for flexible and shock-resistant joint sealing, with a wide range of uses both indoors and outdoors. Sikaflex-591 adheres very well to many common substrates used in the marine industry. Common applications of Sikaflex-591 include:
- Bonding and sealing of interior and exterior components.
- Elastic joint sealing.
- Sealing of non-ferrous metals.
Directions for use
Sikaflex-591 can be applied at temperatures between 5°C and 40°C, but it is important to consider possible changes in reactivity and application properties within this range. The optimal temperature for both the substrate and the product is between 15°C and 25°C. The sealant can be easily applied using a manual, pneumatic, or electrically powered piston-type caulking gun. Sikaflex-591 has a working time of approximately 20 minutes and a skin formation time of around 35 minutes at 23°C.
If Sikaflex-591 is used in combination with polyurethane adhesives or sealants, these must be allowed to cure for 24 hours before applying Sikaflex-591.
Specifications
Packaging: 310 ml
Colour: white, steel grey, black
Chemical base: silane modified polymer
Cure mechanism: moisture curing
Non-sag properties: very good
Application temperature: 5-40°C
Open time: 20 minutes
Skin time: 35 minutes
Hardness: Shore A45
Service temperature: -50 to +80°C
Shelf life: 12 months (stored at temperatures below 25°C)
Application gun: caulking gun for cartridges
For all technical properties and application instructions, please check the technical documentation of Sikaflex-591.
We have a number of recommendations for working safely with polymers. At Polyestershoppen you will not only find the polymers themselves, but you can also purchase all the protective equipment you need from us. If you have any doubts or questions, please contact our customer service. We can give you advice on how to work safely with polymers.
