JSW iBlok WaterStop 3K – Crystalline Waterproofing Kit (3-Component)

JSW iBlok WaterStop 3K: High-Performance, Flexible Cementitious Waterproofing

JSW iBlok WaterStop 3K is a professional-grade, two-component (2K) cementitious-modified acrylic waterproofing system. Designed to withstand extreme hydrostatic pressure, this product is the ultimate solution for waterproofing critical areas like terraces, bathrooms, and exterior walls suffering from severe dampness.

The “2K” system means it is chemically cured: a powder component (cement and fillers) is mixed with a liquid component (specialized acrylic polymers). This combination creates a seamless, flexible, and durable membrane. Unlike rigid cement plasters, JSW iBlok WaterStop 3K has excellent crack-bridging properties, ensuring the waterproof layer remains intact even with minor structural movements.

Why Choose JSW iBlok WaterStop 3K?

For areas exposed to constant water stress, a standard single-component coating is insufficient. This product offers superior protection:

• Hydrostatic Pressure Resistance: Designed to resist water pressure from both the positive side (water pushing down, e.g., terrace) and negative side (water pushing out, e.g., basement/damp interior walls).
• Crack Bridging: The high polymer content provides elasticity, allowing JSW iBlok WaterStop 3K to bridge static hairline cracks and prevent water entry.
• Seamless Membrane: Creates a monolithic layer across the entire surface without joints or seams, which are common points of failure in other waterproofing methods.
• Breathable Yet Waterproof: It blocks liquid water but allows water vapour to escape, preventing internal blistering and delamination.

Key Features of JSW iBlok WaterStop 3K

• 2-Component Reliability: Ensures precise chemical curing for maximum strength and longevity.
• Excellent Adhesion: Bonds strongly to concrete, masonry, block work, and existing sound plaster.
• Non-Toxic: Safe for use in water tanks and sumps (consult technical sheet for specific guidelines).
• Trafficable: Suitable for terraces, the membrane is robust enough to handle light foot traffic, although it should be protected by a final coat or screed.

Recommended Application Areas

This 2K waterproofing solution is essential for:

• Terrace and Roof Slabs: Primary waterproofing layer before tiling or screeding.
• Sunken Slabs: Bathrooms, kitchens, and balconies.
• Damp Walls: Applying as a barrier coat on severely damp exterior or interior masonry.
• Water Bodies: Sumps, tanks, and foundation walls.

Technical Specifications: JSW iBlok WaterStop 3K

How to Apply JSW iBlok WaterStop 3K

Meticulous surface preparation and mixing are vital for a successful 2K application:

1. Surface Preparation: The surface must be sound, clean, and free from oil, grease, or loose materials. Repair all major cracks (over 5mm) with JSW iBlok Crack Fix first. Dampen the surface with water, but ensure there is no standing water.
2. Mixing: Slowly add the powder component (A) to the liquid component (B) while continuously mixing with a low-speed drill and paddle mixer. Mix until a lump-free, uniform slurry consistency is achieved. Do not add extra water.
3. Application (1st Coat): Apply the first coat of JSW iBlok WaterStop 3K uniformly using a wide brush or roller. Ensure no gaps are missed.
4. Curing & 2nd Coat: Allow the first coat to dry for 6-8 hours. Apply the second coat perpendicular to the first (cross-hatch pattern). A minimum of two coats is mandatory.
5. Protection: Allow the coating to cure for 7 days before conducting water ponding tests or applying protective screed/tiles. Read detailed instructions on cementitious waterproofing application.

Frequently Asked Questions (FAQ)

Q: Can I mix this by hand?
A: While possible, a mechanical stirrer is highly recommended to ensure the polymers and cement are perfectly blended, which is critical for the product’s performance.

Q: Does it need a primer?
A: No, the first coat of JSW iBlok WaterStop 3K acts as its own bonding agent/primer on sound, prepared masonry surfaces.

Q: Can I tint this product?
A: No, this is a technical waterproofing product. It must be protected by a final coat of paint or plaster/screed.