SikaInject-102

High-Performance Water-Reactive Injection Resin

SikaInject-102 is a single-component polyurethane injection resin specifically engineered for sealing water paths and repairing structural damage in concrete, masonry and natural stone. This low-viscosity, water-reactive formula expands on contact with moisture to create a dense, closed-cell foam that effectively blocks water infiltration and reinforces damaged structures.

Key Technical Features

• Water-reactive chemistry – Expands up to 75 times its original volume when activated by water, filling voids and microcracks completely
• Low viscosity – Penetrates deep into fine cracks and cavities for comprehensive sealing coverage
• Semiflexible foam structure – Accommodates minor structural movements without cracking or separating from substrates
• High load-bearing capacity – Provides structural reinforcement suitable for load-bearing applications
• CE marked – Meets European standards for structural repair applications in building and civil infrastructure

Ideal Applications

Structural Repair & Waterproofing

• Sealing active water leaks in concrete structures
• Repairing construction damage and concrete deterioration
• Filling voids and cavities in masonry and stone
• Strengthening damaged structural elements
• Waterproofing basements, tunnels and underground structures

Suitable Substrates

Concrete, reinforced concrete, masonry, brick, natural stone, and composite building materials. Professional application requires proper substrate preparation, appropriate environmental conditions and certified injection techniques to ensure optimal performance.

Professional Grade Quality

Developed and validated by Sika, a global leader in construction materials with over a century of expertise. This product is backed by comprehensive technical documentation, certified testing and professional support services for contractors, construction companies and specialist applicators.