Sikaflex 1A is a premium-grade, high-performance, polyurethane-based, non-sag elastomeric sealant. Sikaflex 1A can be used in green and damp concrete applications and is readily placeable at 40°F.
Fast tack-free and final cure times
Excellent resistance to aging, weathering.
High elasticity - cures to a tough, durable, flexible consistency with exceptional cut and tear resistance
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.
Advantages
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.
APPROVALS / STANDARDS
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).