X-20 Coolroom & Freezer™ – Antimicrobial Concrete Cure & Waterproofing Treatment Oxtek X-20 Coolroom & Freezer™ is a high-performance, single-coat spray system designed to deeply penetrate new or existing concrete. It cures, waterproofs, densifies and seals the surface in one application—delivering long-term protection in cold storage and food-handling environments. Formulated with a proven silver-ion antimicrobial additive, X-20 provides reliable protection against E. coli, MRSA and moisture-related contamination. It helps create a safer, cleaner and more durable concrete surface that stands up to freezing temperatures, cleaning chemicals and heavy foot traffic. Ideal for new builds or refurbishments, X-20 is trusted by builders, tradespeople and facility managers for its performance and ease of application. Features Deep-penetrating one-coat curing and waterproofing treatment Long-term protection against E. coli & MRSA Densifies, hardens and seals concrete Superior resistance to extreme cold and cleaning chemicals Helps control bacteria, mould and moisture ingress Improves concrete lifespan and structural performance Fast, easy application with minimal downtime Ideal for food-safe, hygiene-critical environments Suitable for new or existing porous concrete Typical Applications: Cold Rooms Freezers Chillers Food Preparation Areas Refrigerated Storage Areas Note: Not suitable for rubber-tyre traffic.