Riser Sealant

SKU: SIKA-1A Category:
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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. 

Key Features
  • 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
  • Non-staining.
  • Jet fuel resistant.
  • Certified to NSF/ANSI/CAN 61 for potable water (meets applicable requirements of NSF/ANSI 600).
  • Urethane-based; suggested by EPA as a caulk and crack sealant for radon reduction.
  • Paintable with water-, oil- and rubber-based paints.
  • Capable of ±35% joint movement.
  • ASTM C920, Type S, Grade NS, Class 35, Use T, NT, O, M, A, I
  • SWRI validated acc. to ASTM C719 (No. 0123-S0128)
  • Federal specification TT-S-00230 C Type II, Class A
  • Canadian Standard CAN/CGSB 19.13-M87
  • Certified to NSF/ANSI/CAN 61 for potable water (meets applicable requirements of NSF/ANSI 600).




Sikaflex®-1A Data Sheet

Sikaflex®-1A Safety Data Sheet


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