SikaFlex-521 UV Box of 12 300ml Cartridges or box of 20 600ml sausages
Item Code: 62139-12
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About the Product
Sikaflex®-521 UV -Isocyanate-free, weathering-resistant sealant
Sikaflex®-521 UV is a durable, single-component Silane Terminated Polymer (STP) sealant designed to cure upon contact with atmospheric moisture. Its weather-resistant properties make it ideal for a wide range of sealing tasks both indoors and outdoors.
- Colour
- White
- Grey
Benefits:
Resistant to aging and weathering, this sealant adheres effectively to numerous substrates without requiring special surface preparation. It is paintable, sandable, emits low odour, and is free from isocyanates, solvents, silicone, and PVC.
Suitable Usage and Application:
Sikaflex®-521 UV offers strong adhesion across a broad range of substrates, making it ideal for elastic sealing and bonding applications. Compatible materials include timber, metals, metal primers, two-part paint systems, ceramics, and plastics. For substrates susceptible to stress cracking, it is essential to consult the manufacturer and conduct preliminary tests. This product is intended for use by skilled professionals, who should verify adhesion and compatibility through testing under actual conditions.
PLEASE NOTE: "Sika Shelf-Life Policy" Sika offers a minimum 3-month shelf-life on all products.
Trade Warehouse will verify the shelf-life of the product prior to purchase at your request, for dispatch of stock from the nearest Sika location and/or where goods are available from, depending on stock location.
No refunds will be issued for Sika products with a shelf-life indicated as being greater than 3 months.





