Potable Water Tank Waterproofing

Potable Water Tank Waterproofing

Waterproofing materials specifically certified for contact with drinking water. These coatings and mortars are formulated to prevent leakage while being completely safe and non-toxic for potable water storage applications.

Key Features

• Drinking water certified - WRAS, NSF or equivalent certification for potable water contact
• Waterproof barrier - Prevents water ingress and egress
• Non-toxic - No harmful substances leach into stored water
• Durable - Long-lasting protection against water pressure

Applications

• Drinking water tanks and cisterns
• Water reservoirs and storage facilities
• Water treatment plant structures
• Elevated water towers
• Swimming pool water features (potable-grade)

Available Brands

• Sika - SikaTop Seal-107 (potable water grade), Sika-1
• Fosroc - Renderoc series (potable water approved)

FAQ

What certifications should I look for?

Look for WRAS (UK), NSF/ANSI 61 (US) or equivalent local certification confirming the product is safe for contact with drinking water. All our potable water products carry appropriate certifications.

How long does the waterproofing last?

Properly applied cementitious waterproofing in water tanks can last 15-20+ years. Regular inspection is recommended to ensure continued performance.