Sikaflex®-1A

Elastomeric joint sealant / adhesive

Sikaflex®-1A is a premium-grade, high-performance, moisture-cured, 1-component, polyurethane-based, non-sag elastomeric sealant. Sikaflex-1a can be used in green and damp concrete applications. Meets Federal Specification TT-S-00230C, Type II, Class A. Meets ASTM C-920, Type S, Grade NS, Class 35, use T, NT, O, M, G, I, A. Canadian standard CAN/CGSB 19.13-M87.

  • Eliminates time, effort, and equipment for mixing, filling cartridges, pre-heating or thawing, and cleaning of equipment.
  • Fast tack-free and final cure times.
  • High elasticity - cures to a tough, durable, flexible consistency with exceptional cut and tear -resistance.
  • Stress relaxation.
  • Excellent adhesion - bonds to most construction materials without a primer.
  • Excellent resistance to aging, weathering.
  • Proven in tough climates around the world.
  • Can be applied to green concrete 24 hours after pour
  • Can be applied to damp concrete 1 hour after getting wet
  • Odorless, non-staining.
  • Jet fuel resistant.
  • Certified to the NSF/ANSI Standard 61 for potable water.
  • Urethane-based; suggested by EPA for radon reduction.
  • Paintable with water-, oil- and rubber-based paints.
  • Capable of ±35% joint movement.