Sikaflex -521 UV is aonecomponent PUR-Hybrid sealant based on the Sika Silane Terminated Polymer (STP) technology. The product cures on exposure to atmospheric humidity to form a durable elastomer. Sikaflex -521 UV is manufactured in accordance with ISO 9001 / 14001 quality assurance system and with the responsible care program.
- Can be overpainted
- Low odor