Description

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.

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
• 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.
• Designed for all types of joints where maximum depth of sealant will not exceed 1/2 in.
• Excellent for small joints and fillets, windows, door frames, reglets, flashing, common roofing detail applictions, 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.