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Cafonci-103 Js Polymer Cementious Waterproof Paint for Kitchen Balcony Swimming Pool

2026-06-25Visits:

Cafonci-103 JS Polymer Cementitious Waterproof Paint is a high-performance, two-component waterproofing coating designed specifically for areas subjected to regular moisture or continuous water immersion.

It works by combining the flexibility of organic polymers (acrylic emulsion) with the structural strength and durability of inorganic cement. When cured, it forms a continuous, seamless, rubber-like elastic membrane that adapts to minor structural shifting or concrete settling without cracking.

Key Applications

  • Kitchens & Bathrooms: Ideal for sealing sub-floors and walls before laying tiles, effectively blocking moisture from seeping into adjacent rooms.

  • Balconies & Terraces: Provides robust weather and UV resistance, handling structural expansion and contraction caused by temperature swings.

  • Swimming Pools & Water Tanks: Formulated to withstand continuous water immersion and long-term hydrostatic pressure (positive water pressure).

Core Performance Features

  • Wet-Substrate Tolerant: Can be applied directly onto damp concrete surfaces (without standing water), which significantly reduces project waiting times.

  • Eco-Friendly & Non-Toxic: A water-based, low-odor formula that meets green construction standards, making it safe for indoor residential spaces and confined basement areas.

  • Excellent Sag Resistance: The thick, liquid-aggregate consistency allows it to be applied effortlessly on vertical surfaces, walls, and pipe bases without running down.

Step-by-Step Application Guide

To achieve a long-lasting, worry-free waterproof barrier, follow this sequence precisely:


1.Substrate Preparation:Crucial for Adhesion.

Ensure the concrete base is structurally sound, clean, and free of dust, oil, or loose debris. Repair any cracks wider than 0.3 mm using standard cement mortar. Smooth out sharp edges and create a smooth radius (arc) at all internal wall-to-floor junctions.

2.Mixing the Components:5 Minutes Mechanical Stirring.

Gradually add the powder component into the liquid polymer emulsion container according to the package ratio. Use an electric paddle mixer to stir for at least 5 minutes until a completely smooth, lump-free paste is achieved.

3.Critical Detail Reinforcement:Corners, Drains, & Pipes.

Apply an extra layer of the mixture over structural weak points such as floor drains, pipe penetrations, and wall corners. Embed a strip of fiberglass mesh into this fresh coat to bridge seams and prevent future cracking.

4.Full-Area Coating:2-3 Perpendicular Layers.

Apply the paint evenly over the entire surface using a roller, brush, or spray. Once the first layer is touch-dry (typically 4–8 hours depending on humidity), apply the second coat perpendicular to the first to guarantee complete, pinhole-free coverage. Aim for a final dry thickness of at least 1.5 mm to 2.0 mm.

5.Curing & Water Testing:24-Hour Test.

Allow the coating to cure fully for 48 hours. Before laying any tiles, plug the drains and perform a 24-hour closed water tightness test to verify there is zero leakage.


Pro-Tip: If the concrete substrate is completely bone-dry and highly porous, lightly dampen it with water or apply a thin polymer primer coat first. This prevents the dry concrete from instantly sucking moisture out of the fresh waterproof paint, which can cause the coating to cure too quickly and powdery.


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