Sikalastic®-621 TC

SINGLE COMPONENT RESIN FOR SIKALASTIC® ROOFPRO ROOFING SYSTEMS

Sikalastic®-621 TC is a cold-applied, highly elastic, aliphatic, single component, moisture-triggered polyurethane top coat resin designed for easy application as part of Sikalastic®-621 RoofPro roofing systems.

  • Proven technology – over 30 year track record
  • One component – no mixing, easy and ready to use
  • UV resistant – Highly reflective (RAL9016) and resistant to yellowing
  • Cold-applied – requires no heat or flame
 
  • Seamless roof waterproofing membrane
  • Compatible with Sika® Reemat Premium – easy to detail
  • Fast curing – free from resin damage almost immediately on application
  • High elastic and crack-bridging – retains flexibility even at low temperatures
  • High root resistance
  • Easily re-coated when needed – no stripping required
  • Good adhesion to most substrates – see primer chart
  • Vapour permeable – allows substrate to breathe
  • Strong resistance to common atmospheric chemicals