Sikalastic®-624 WP

Liquid applied alkaline resistant, single component polyurethane saturating resin. 

Sikalastic®-624 WP is a cold applied, highly elastic, aliphatic, single component, alkaline resistant, moisture triggered polyurethane resin designed for easy application as part of Sikalastic® roofing and waterproofing systems.

  • Proven technology with over 30 year track record
  • Single component - no mixing and ready to use
  • Fully reinforced with highly conformable Sika Reemat or Sika Fleece
  • Moisture-triggered chemistry that is rapidly weatherproof after application
  • Resitant to ponding water
  • Highly elastic and crack bridging
  • Seamless and fully adhered
  • Vapor permeable
  • UV resistant and non-yellowing
  • Abrasion and chemical resistant
  • Alkaline resistant - suitable for under tile applications 
  • Adheres to most common construction materials when suitable primer is used