N-11

• Building Chemist N - 11 is a surface-applied crystalline waterproofing treatment for concrete structures used to protect against the ingress of water. Building Chemist N - 11contains Building Chemist’s unique and proven Building Chemist technology which reacts with un-hydrated cement particles and moisture to form millions of needle-shaped crystals deep into the concrete mass. Over a period of weeks, these crystals grow, filling the naturally occurring pores and voids in concrete, and permanently blocking the pathways for water and waterborne contaminants. Later, if cracks form due to settling or shrinkage, incoming water triggers the crystallization process and additional crystals begin to grow, filling cracks and ensuring that the structure’s waterproofing barrier is maintained and protected. The concrete itself becomes the waterproof layer removing the need for any surface treatment.
• Advanced Crystalline Waterproofing: Building Chemist N-11 penetrates concrete to form needle-shaped crystals, permanently sealing pores, voids, and cracks, ensuring a durable waterproof barrier.
• Self-Sealing & Reactivating: Automatically seals hairline cracks up to 0.5 mm and reactivates upon moisture exposure, maintaining long-term protection.
• Enhanced Durability & Safety: Certified for structural repair (EN 1504-3) and potable water use, it replaces traditional surface treatments and protects against corrosion, reducing maintenance costs.
• Cost-Effective Solution: Increases concrete reliability and quality, lowering waterproofing expenses while ensuring superior performance even under wear or abrasion.