





🖤 Seal it like a pro — weatherproof, paint-ready, and built to last!
Sikaflex 521 UV is a 300ml black silane-terminated polymer adhesive sealant designed for professional use. It offers exceptional weathering and age resistance, bonds multiple substrates without special pre-treatment, and features a low-odour, isocyanate-free formula. Its sandable and overpaintable finish ensures a high-quality, seamless look for both internal and external applications.




| Manufacturer | Sika |
| Part number | 60179 |
| Item Weight | 417 g |
| Product Dimensions | 5 x 5 x 21 cm; 417 g |
| Batteries | Lithium Metal batteries required. |
| Item model number | 60179 |
| Size | 300ml |
| Colour | Black |
| Style | Sika Flex-521 UV (old version) |
| Material | Polyurethane Silicone silicone Polyvinyl chloride |
| Volume | 300 Millilitres |
| Item Package Quantity | 1 |
| Number of Pieces | 1 |
| Special Features | Black |
| Specific uses | Professional |
| Included components | 1 cartridge |
| Batteries included? | No |
| Batteries Required? | No |
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