Description
🔧 Seal smart, last longer—join the pros who never compromise!
- DYNAMIC FLEXIBILITY - Accommodates joint movement up to ±35%, ensuring resilient, crack-free seals.
- PRIMER FREE BONDING - Strong adhesion to most materials without primer—streamline your workflow.
- MULTI SURFACE MASTERY - Perfect for windows, doors, roofing, and more—versatility that keeps your projects tight.
- ALL WEATHER DURABILITY - Engineered to resist aging and weathering for reliable performance in any climate.
- EFFORTLESS INSTALLATION - Compatible with any standard sausage caulking gun—no special tools needed.
SIKASikaflex 1a is a one-component, elastomeric polyurethane sealant designed for both vertical and horizontal concrete and masonry joints. It offers easy application with standard tools, strong adhesion without primer, ±35% joint movement flexibility, and excellent weather resistance, making it ideal for durable, professional-grade sealing in diverse construction scenarios.