Product Overview

Sika WT-100P IN is an integral concrete waterproofing admixture that acts by a pore-blocking mechanism to reduce the permeability of concrete from within. When added to concrete during mixing, the active components react with calcium hydroxide in the cement paste to precipitate insoluble compounds that fill the capillary pores and micro-cracks within the concrete matrix. This pore-blocking action significantly reduces the ability of water to migrate through the concrete structure under hydrostatic pressure. Unlike surface-applied waterproofing membranes, integral waterproofing treats the full concrete section, so the protection is not affected by installation defects, punctures, or edge termination failures. Sika WT-100P IN is used for water retaining structures, basements, tunnels, and infrastructure where the concrete itself must resist water ingress. Space Arc Engineering distributes Sika WT-100P IN for structural waterproof concrete (Type B waterproofing per BS 8102) projects across Delhi NCR and Northern India.

Applications

• Water retaining structures — water treatment plants, reservoirs, tanks
• Basement and below-ground structure watertight concrete
• Tunnel lining and underground infrastructure concrete
• Car park deck and podium slab waterproof concrete
• Foundation raft and retaining wall watertight concrete
• Sewage treatment and industrial liquid containment structures

Key Advantages

• Integral treatment — protects full concrete cross-section
• Pore-blocking chemistry reduces capillary water transport
• Self-healing properties — re-seals minor cracks on wet-dry cycling
• Eliminates reliance on surface membrane installation quality
• Reduces permeability coefficient of concrete by 2–3 orders
• Compatible with most Portland cement and SCM blended mixes