Cementitious Waterproofing Suppliers, UAE
Cementitious Waterproofing involves cement-based coatings and mortars applied to concrete surfaces to prevent water penetration, commonly used for water tanks, swimming pools, basements, and wet areas in GCC construction. These products bond chemically to the concrete substrate and can withstand both positive and negative water pressure. Cementitious systems are an economical and durable waterproofing solution for applications where flexibility is not a primary requirement.
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Cementitious waterproofing products are polymer-modified cement-based coatings applied as a slurry, brush-on coating, or trowel-applied mortar to concrete and masonry surfaces. Product types include rigid cementitious coatings (single or two-component mixtures for water tanks and pools), flexible cementitious coatings (polymer-modified for applications requiring crack-bridging, such as bathroom waterproofing), and cementitious repair mortars with integral waterproofing for concrete rehabilitation. Typical application thicknesses range from 1 to 3mm for coatings and 10 to 20mm for waterproofing mortars.
In the UAE and Saudi Arabia, cementitious waterproofing is widely used for potable water tank lining (approved for contact with drinking water), swimming pool waterproofing, basement wall and slab internal waterproofing (negative side application), bathroom and wet area tanking beneath tile finishes, and retaining wall waterproofing. Key specifications include water pressure resistance (positive and/or negative), flexibility (rigid for immersion applications, flexible for crack-prone substrates), potable water approval (NSF 61 or WRAS for drinking water contact), and compatibility with tile adhesives for overlay applications.
Major cementitious waterproofing brands in the GCC include Sika (SikaTop Seal), Fosroc (Renderoc), BASF (MasterSeal), Mapei (Mapelastic), and Kryton (crystalline technology combined with cementitious application). Procurement managers should specify the product based on the application's water pressure, substrate condition, and flexibility requirements. Surface preparation (clean, sound concrete with open pores) is critical for bond quality. Application training for workers is important as correct mixing ratios, curing, and coat thickness directly affect waterproofing performance. These are relatively low-cost materials — typical costs are AED 20 to 50 per square metre installed.