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Sikaflex 1a 20 oz Sausage, One Component, Elastomeric, Non Sag, Polyurethane Concrete and Masonry Joint Sealant for Vertical and Horizontal Joints, Includes AWF PRO Gloves (White, Pack of 10)

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$138.79

$ 67 .99 $67.99

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About this item

  • Excellent adhesion and bonds to most construction materials without a primer
  • Resistance to aging and weathering and can be used in green and damp concrete applications
  • Cures to a tough, durable and flexible consistency with +/- 35% movement
  • Designed for all types of joints where the maximum depth of sealant will not exceed 1/2"
  • Ideal for small joints and fillets, windows, door frames, reglets, flashing, common roofing detail applictions, and many construction adhesive applications


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 C920, Type S, Grade NS, Class 35, Use T, NT, O, M, A, I. Canadian standard CAN/CGSB 19.13-M87.