Sikaflex®-521 UV is a weathering-resistant 1-component Silane Terminated Polymer (STP) adhesive / sealant that bonds well to a wide variety of bonding surfaces such as metals, ABS, PC, FRP and wood with usually no need for special treatment.

Sikaflex®-521 UV can be processed between 5 °C and 40 °C (41 °F and 104 °F) but changes in reactivity and application properties have to be considered. The optimum temperature for sub-strate and sealant is between 15 °C and 25 °C (59 °F and 77 °F). Sikaflex®-521 UV can be processed with hand, pneumatic or electric driven piston guns.

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Sikaflex®-521 UV is a weathering-resistant 1-component Silane Terminated Polymer (STP) adhesive / sealant that bonds well to a wide variety of bonding surfaces such as metals, ABS, PC, FRP and wood with usually no need for special pre-treatment.

Sikaflex®-521 UV can be processed between 5 °C and 40 °C but changes in reactivity and application properties have to be considered. The optimum temperature for substrate and adhesive sealant is between 15 °C and 25 °C. Sikaflex®-521 UV can be processed with hand, pneumatic or electric driven piston guns as well as pump equipment.

Sika Sikaflex-521 UV White is a one component, general purpose, non-sag, elastic, silane-terminated polyurethane hybrid sealant. It cures on exposure to atmospheric moisture, forming a durable elastomer. Isocyanate and solvent-free.

Sikaflex®-521 UV is a weathering-resistant, 1-component Silane Terminated Polymer (STP) sealant that cures on exposure to atmospheric humidity. This multipurpose product is suitable for internal and external sealing applications.

Sikaflex®-521 UV is a weathering-resistant 1-component Silane Terminated Polymer (STP) adhesive / sealant that bonds well to a wide variety of bonding surfaces such as metals, ABS, PC, FRP and wood with usually no need for special treatment.

Sikaflex®-521 UV can be processed between 5 °C and 40 °C but changes in reactivity and application properties have to be considered. The optimum temperature for substrate and sealant is between 15 °C and 25 °C. Sikaflex®-521 UV can be processed with hand, pneumatic or electric driven piston guns as well as pump equipment. For advice on se-