Sikaflex-1a Elastomeric Joint Sealant / Adhesive 10.1 oz. Limestone (Model SIKA1ALIMESTONE)

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.

Uses

• Designed for all types of joints where the maximum depth of sealant will not exceed 1/2 in.
• Excellent for small joints and fillets, windows, door frames, reglets, flashing, common roofing detail applications, and many construction adhesive applications.
• Suitable for vertical and horizontal joints; readily placeable at 40°F
• Has many applications as an elastic adhesive between materials with dissimilar coefficients of expansion.
• Submerged conditions, such as canal and reservoir joints.

Key Features

• Color: Limestone
• 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.

Certifications

• 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).

⚠️ WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.