Ultimate Guide to Tanking Slurry Application for Waterproofing Success

Introduction

Clever Shield supplies high-performance waterproofing solutions, including premium tanking slurry products from industry-leading brands like Newton Waterproofing and Wykamol. Whether you're working on new construction or renovating an existing property, applying tanking slurry correctly ensures long-lasting protection against moisture and dampness. This guide walks you through the process, benefits, and best practices for effective application.

What is Clever Shield Tanking Slurry?

Clever Shield offers a range of cementitious waterproofing products designed to create an impermeable barrier on masonry and concrete surfaces. These advanced solutions include top-performing tanking slurries from Newton Waterproofing and Wykamol, ensuring superior durability and resistance to water penetration.

Best Uses for Tanking Slurry

• Basements and Cellars: Provides an effective moisture barrier for underground spaces.

• Retaining Walls: Shields against hydrostatic pressure and water seepage.

• Swimming Pools: Ensures a watertight and durable finish.

• External Walls: Prevents damp issues caused by prolonged water exposure.

• Tunnels and Underground Structures: Offers long-lasting waterproofing protection.

Step-by-Step Guide to Applying Tanking Slurry

1. Surface Preparation

To ensure optimal adhesion and performance, prepare the surface properly:

• Clean the area thoroughly: Remove dust, grease, and debris using a wire brush or pressure washer.

• Repair cracks and holes: Fill voids with a waterproof mortar or filler.

• Dampen the surface: Lightly wet the substrate to prevent premature drying of the slurry.

2. Mixing Tanking Slurry

Follow the manufacturer’s guidelines for mixing:

• Gradually add clean water to the slurry powder.

• Use a paddle mixer to achieve a smooth, lump-free consistency.

• Avoid excessive water, as it can weaken the waterproofing effect.

3. Applying the First Coat

• Use a stiff brush, roller, or sprayer to apply the first coat evenly.

• Work in consistent horizontal or vertical strokes for complete coverage.

• Pay close attention to corners, joints, and edges, as these are prone to leaks.

4. Curing and Second Coat Application

• Allow the first coat to cure for 4-8 hours without drying out completely.

• Apply the second coat at a perpendicular angle to the first for full coverage.

• Check for any pinholes or gaps that may compromise waterproofing.

5. Drying and Final Touches

• Let the final coat dry for at least 24-48 hours before any further work.

• Protect the area from extreme temperatures or moisture during curing.

• If needed, apply a breathable finish or protective coating for additional durability.

Tanking Slurry Products Available from Clever Shield

Newton Waterproofing HydroCoat Tanking Slurry

This high-performance cementitious slurry contains crystallizing and capillary-blocking chemicals to enhance adhesion and durability. Suitable for both internal and external applications, it provides exceptional waterproofing even under significant water pressure.

Wykamol Tanking Slurry

A BBA and WRAS-approved cementitious waterproofing system, Wykamol Tanking Slurry forms a monolithic bond with concrete and masonry. It effectively resists both positive and negative hydrostatic pressure, making it ideal for basements, retaining walls, and underground structures.

Wykamol HydraDry Tanking Slurry

Designed for internal surfaces affected by penetrating damp, HydraDry is a high-quality cementitious slurry that ensures long-lasting protection. Like the standard Wykamol Tanking Slurry, it is also BBA and WRAS-approved and can be used as a radon barrier with appropriate application.

Wykamol Hydraflex

Introduced to the market in 2020, Hydraflex is a highly flexible cementitious waterproofing slurry that provides outstanding crack-bridging capabilities. It is ideal for surfaces that may experience movement or expansion, such as concrete structures and masonry walls. Hydraflex is resistant to both positive and negative water pressure, making it perfect for demanding waterproofing applications, including basements, podium decks, and external retaining walls. Its enhanced flexibility ensures long-term protection against water ingress, even in challenging environments.

Common Mistakes to Avoid

• Skipping surface preparation: Leads to poor adhesion and ineffective waterproofing.

• Over-diluting the slurry: Reduces the effectiveness of the barrier.

• Insufficient curing time: Can cause cracks and reduce longevity.

• Neglecting corners and edges: These are the most vulnerable areas for leaks.

Frequently Asked Questions

1. Can tanking slurry be applied over paint?

No, it must be applied to a clean, unpainted surface for proper adhesion.

2. How long does tanking slurry last?

With proper application, it can provide waterproofing protection for over 10 years.

3. Can I plaster over tanking slurry?

Yes, but ensure you use a breathable plaster to prevent moisture buildup.

4. Is tanking slurry waterproof immediately?

It requires 24-48 hours of curing before achieving full waterproofing effectiveness.

Conclusion

Clever Shield supplies premium tanking slurry solutions from Newton Waterproofing and Wykamol, providing reliable and effective waterproofing for basements, walls, and underground structures. By following this step-by-step guide, you can ensure a durable and watertight finish, preventing damp and water damage for years to come.