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The Watertight Solution: Matlex Waterstops

Writer's picture: Angelo Cruz-HerreraAngelo Cruz-Herrera

At Matlex Rubber & Construction Supplier Philippines, we understand the critical role that waterstops play in ensuring the durability and longevity of concrete structures. Whether you’re building dams, tunnels, or underground parking lots, preventing water from seeping through joints is a priority. Waterstops are an effective and reliable solution for achieving waterproofing at construction joints in concrete structures.


What is a Waterstop?

A waterstop is a flexible and durable product that is installed at the joints of concrete structures to prevent the passage of water. It’s typically made from high-quality synthetic rubber compounds designed to resist water pressure, chemical exposure, and extreme environmental conditions. Waterstops are commonly used in construction projects that involve water-related issues, like reservoirs, wastewater treatment plants, and basements.


The Challenge

In the construction of water-resistant concrete structures, joints are often the weakest point. Without proper sealing, these joints can lead to costly water leakage and structural damage. This issue requires careful attention from designers, specifiers, and contractors to ensure long-term durability and performance. Unfortunately, errors in detailing or poor workmanship can occur, especially when there is unfamiliarity with the various sealing systems available.

Matlex Waterstop – The Ultimate Solution

Matlex Waterstops provide an innovative and efficient solution to sealing non-movement joints in concrete substructures. These waterstops serve as both active and passive barriers, effectively preventing water ingress and enhancing the overall durability of your concrete structures.

What sets Matlex Waterstop apart is its ability to offer a physical barrier to water, while maintaining the flexibility required for long-term resilience in dynamic conditions. Unlike traditional waterstop methods, our rubber and PVC waterstops are easy to install, require no special tools, and can be adapted to a variety of joint configurations. This makes them an ideal solution for a wide range of construction projects.

Types of Waterstops

At Matlex, we offer a variety of waterstops to suit your construction needs. Some of the most common types include:

  • Dumbell Type Waterstop - Ideal for expansion joints where moderate movement is expected. Its unique dumbbell shape, with bulbous ends and a thinner middle, provides superior flexibility and sealing capabilities. Best for: Projects requiring excellent sealing and flexibility in moderate movement joints, such as in dams and tunnels.

  • Fin Type Waterstop - With its wing-like "fin" design, this waterstop is perfect for joints that experience less movement but still require a good seal against water ingress. The fin shape also helps improve anchoring within the concrete. Best for: Moderate pressure and minimal movement applications, including reservoirs, basements, and water treatment plants.

  • Flat Strip Type Waterstop - The simplest of designs, this waterstop features a flat, linear shape. It’s commonly used in straightforward applications where the movement of the joint is minimal. The flat strip is easy to handle, install, and cut to size. Best for: Floor joints, wall joints, or other situations with limited movement and lower water pressure.


Each type has specific advantages depending on the type of joint and the environment where it will be used.

Fast, Effective, and Easy Installation

Matlex Waterstop installation is straightforward and flexible. It can be applied using simple methods before or after concrete pouring, without the need for specialized tools or welding. The waterstop material is designed to be durable yet flexible, allowing for easy shaping and installation around corners and angles.

Additionally, Matlex Waterstop can be seamlessly integrated with PVC waterstops in movement joints, forming a continuous and reliable watertight system throughout the structure.

Once installed, the waterstop becomes a monolithic seal, merging with the surrounding concrete for a long-lasting, watertight bond. This unique self-healing feature ensures that your structure remains secure even if the material is subjected to stress or water infiltration over time.

Key Advantages of Matlex Waterstop

  • Fully Weatherproof – The waterstop material is designed to perform consistently and reliably, even in the presence of rainwater, ensuring long-term waterproofing effectiveness.

  • Up to 80% Labor Saving – Compared to traditional methods, Matlex waterstops significantly reduce installation time and costs.

  • 100-Year Life Expectancy – Engineered to provide reliable sealing for decades, offering excellent long-term value.

  • No Special Tools or Welding Required – Installation is simple and quick, with no need for welding, adhesives, or complicated tools.

  • Resilient – The waterstop remains intact, even during heavy concrete pours, without collapsing or displacing.

  • Compatibility – Can be used alongside other waterstop systems, such as PVC waterstops, for enhanced sealing performance and a complete waterproofing solution.

Why Choose Matlex Rubber & Construction Supplier?

  1. High-Quality Products: We offer a wide range of rubber waterstops that are engineered for different types of concrete joints and environmental conditions.

  2. Expert Advice: Our team of professionals is ready to provide you with technical support to ensure you choose the right product for your project.

  3. Reliable Service: With years of experience in the rubber and construction industry, Matlex ensures timely delivery and exceptional customer service.

    To find out more, please contact us on 09064107353 or info@rubbersupplierphils.com 

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