Waterproofing
Cementitious Waterproofing Coating
Cement-based waterproofing certified for potable water contact.
Overview
A polymer-modified cementitious waterproofing coating available in rigid, semi-flexible, and fibre-reinforced formulations for varying substrate movement conditions. Mixed with water to a smooth slurry and applied by brush or spray, it bonds tenaciously to concrete, masonry, and render — and is one of the few waterproofing systems certified for direct contact with potable water. The rigid formulation delivers excellent compressive resistance; the semi-flexible grade accommodates moderate substrate movement for bathrooms, pools, and facades.
Key benefits
- ▸Certified for potable water contact — swimming pools, water tanks, and reservoirs
- ▸Resistant to negative hydrostatic pressure — applied effectively from the wet side
- ▸Bonds to concrete, brick, block, render, and stone without primer on most substrates
- ▸Vapour-permeable — allows substrate to breathe while blocking liquid ingress
- ▸Fire resistant — inorganic chemistry, zero combustion risk during or after application
- ▸Suitable for internal use — no offgassing, safe in occupied spaces
Applications
- Swimming pools, fountains, and ornamental water features
- Potable water tanks, cisterns, and reservoirs
- Bathroom and wet room internal tanking
- Basement and below-grade wall waterproofing from the negative side
Technical documents
Download the full product catalogue, or request the TDS and SDS for project specification and approval.
Download catalogue (PDF) →Request documentation →Indicative technical data
Indicative values only. Refer to the full Technical Data Sheet for certified specifications. Contact Numastec to request the TDS for this product.
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