Sikaflex-521 UV, light-grey, 300 ml cartridge incl. mixing nozzle

Sikaflex®-521 UV is a one-component polyurethane hybrid sealant which cures to an elastomer when exposed to air humidity. Sikaflex®-521 UV is based on Sika's silane-terminated polymer technology (STP). Sikaflex®-521 UV is manufactured according to the ISO 9001 / 14001 quality assurance system and the Responsible Care program.

Product advantages:
- resistant to aging and weathering
- applicable on many substrates without pre-treatment
- elastic
- recoatable
- grindable
- low odour
- non-corrosive
- high electrical resistance
- Isocyanate and solvent-free
- silicone-free
- PVC-free

Scope of application
Sikaflex®-521 UV shows a broad adhesion spectrum and is suitable for elastic, durable, strong adhesive sealing. Suitable Substrates are wood, metals, primers and varnishes (2-component systems), ceramic materials and plastics. For transparent substrates and substrates at risk of stress cracking, object-related advice is necessary.
This product is only suitable for experienced users. In order to ensure adhesion and material compatibility preliminary tests with original materials are carried out under the respective conditions.

Siemens Gamesa: A9B10020105

Safety data sheet