Sikalastic®-621 CO

High-performance, single-component, reflective, easy-to-apply liquid polyurethane membrane. Resistant to root penetration.

Sikalastic®-621 CO is a cold-applied, one-component, highly elastic, UV-stable and root-penetration resistant polyurethane topcoat with Sika’s unique MTC technology (moisture-accelerated technology). Sikalastic®-621 CO is designed to provide an easy application and a long-lasting solution as part of BUR roofing systems with Sikalastic®-612 CO.

• MTC Technology. Exclusive to Sika. Resists the first rain 15 minutes after application.
• High reflectance.
• High elasticity and crack bridging.
• High resistance to root perforation.
• Continuous roof waterproofing membrane without overlaps.
• Permeable to water vapour.
• Resistant to the most common atmospheric chemical agents.
• Single component – ready to use.