Sikaflex®-521 UV

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Sikaflex®-521 UV

Main benefits

Sikaflex®-521 UV is a silane terminated polymer (STP) adhesive-sealant developed to offer weather resistance and a wide range of adhesion to numerous surfaces. Its formulation allows it to adhere to metals, ABS, PC, FRP and wood without the need for complex pretreatments, facilitating quick and reliable applications in indoor and outdoor environments.

Apps and features

  • Adhesion and sealing in a single solution for structural and perimeter joints
  • Resistance to weathering and climatic variations
  • Good performance on a wide range of surfaces: metals, ABS, PC, FRP and wood
  • Can be applied without special surface treatment on most common substrates
  • Versatile use for internal and external sealing
  • Silane terminated polymer (STP) for durability and reliability