Sika Sikaflex 2c SL Limestone 1.5 Gallon Pail Bucket – 2-Part Self-Leveling Polyurethane Joint Sealant for Horizontal Concrete Expansion Joints, Driveways, Sidewalks, Balconies, Parking Decks

Sika Sikaflex 2c SL in Limestone is a professional 2-part self-leveling polyurethane joint sealant supplied in a 1.5 gallon bucket/pail. Designed for horizontal sealing, it flows smoothly to create a low-profile joint in concrete flatwork where a clean finish and long service life matter—ideal for driveways, sidewalks, plazas, balconies, ramps, and parking deck joints.This two-component system is built for demanding construction and repair work. After proper mixing, the sealant levels itself for a smooth bead without excessive tooling, then cures to a tough, flexible rubber seal that moves with seasonal expansion and contraction. Use with backer rod and correct joint depth to support consistent adhesion and a watertight weatherseal on exterior concrete.Self-leveling horizontal sealant for control joints and expansion joints in concrete and masonry flatworkLimestone color blends with light cement and stone finishes for a professional joint lineDurable polyurethane resists wear from foot traffic, carts, and routine maintenanceFlexible movement capability helps reduce cracking at joint edges over timeContractor-friendly bucket packaging for larger pours and long joint runsJobsite tip: Clean joint faces, install backer rod to control depth, then mix Parts A/B and pour promptly so the sealant levels evenly. Allow cure before traffic.Driveway and sidewalk expansion joints; concrete control jointsBalcony and plaza joints where a smooth self-leveling finish is preferredParking deck joints (above-grade) with routine foot trafficFor best results, clean and dry the joint faces, remove dust and laitance, and follow standard joint design practices. Sika quality plus Sikaflex performance for concrete sealing you can trust.

• APPLICATION - Two-component self-leveling joint sealant for horizontal concrete expansion joints on driveways, walkways, balconies, plazas, and parking decks; limestone color blends with light stone and cement finishes for pro results every time.
• PERFORMANCE - Fast-mixing 2C polyurethane system cures to a tough, flexible rubber seal that helps reduce water intrusion and joint edge spalling; ideal where heavy foot traffic, carts, and occasional vehicle loads demand strength long term.
• MOVEMENT - Designed for dynamic concrete joints, the elastomeric sealant stretches and compresses with seasonal expansion and contraction to maintain a watertight seal; helps prevent cracking and keeps joint lines clean and uniform year after year.
• WORKABILITY - Self-leveling formula flows into joint gaps for smooth, low-profile finishes without extensive tooling; great for flatwork and long runs. Use with backer rod and follow proper joint depth for reliable adhesion and cleaner lines.
• WEATHER - Exterior-grade sealant built for sun, rain, freeze-thaw, and de-icing salt exposure on sidewalks and slabs; resists wear and maintains color. Suitable for above-grade joints on commercial concrete when proper surface prep is used.