Sikaflex-406 KC

Professional Joint Sealant for Construction

Sikaflex-406 KC is a high-performance, 1-part self-levelling elastic sealant specifically engineered for professional sealing of movement joints, expansion joints and construction gaps in building and civil engineering applications. The booster-accelerated polyurethane formula delivers fast curing without compromising on quality or durability.

Key Features & Benefits

Permanent Elasticity & Movement Absorption

This sealant maintains permanent elasticity that allows it to absorb structural movements, thermal expansion and settlement while preserving watertight sealing performance. This flexibility prevents cracking and seal failure in dynamic construction environments.

Superior Adhesion & Durability

Excellent adhesion to common construction materials including concrete, mortar, aluminium, steel and various plastics ensures reliable, long-lasting bonds that withstand demanding service conditions and extreme weather exposure.

Weather & Environmental Resistance

• UV radiation resistant for outdoor applications
• Tolerates extreme temperature variations without degradation
• Maintains integrity under prolonged weather exposure
• Chemical resistant formulation for industrial environments

Technical Specifications

Sikaflex-406 KC meets rigorous European standards and building regulations, with full CE marking compliance where applicable. Complete technical documentation, laboratory certifications and real-world performance data support specification by architects, engineers and construction professionals.

Ideal Applications

Perfect for professional contractors, construction companies, rehabilitation specialists and certified applicators working on projects requiring proven quality materials. Suitable for movement joints, saw cuts, floor joints and structural gaps in civil engineering and building construction.