Which Waterproofing Materials Are Stronger? How to Choose?

Publish Date: 2023-08-05 2Views

Waterproofing materials are an essential part of construction, evolving from simple residential waterproofing applications to high-speed railways, bridges, highways, subway tunnels, landfill projects, and wastewater treatment facilities. Over the years, the types and performance of waterproofing materials have continuously improved.

Although the market for waterproofing materials is vast and diverse,

consumers often feel overwhelmed when making choices,

yet overall,

the most commonly known types are:

polymer-modified asphalt, acrylic, and polyurethane-based materials.

How to choose among these waterproofing materials?

We will analyze and summarize based on their respective performance characteristics.

Polymer-Modified Asphalt Waterproofing Materials

Polymer-modified asphalt materials are also known as 'liquid rubber' due to their excellent elasticity. They are primarily made from modified asphalt, polyacrylate, and other raw materials, combined with various additives and fillers through chemical reactions to form single-component, moisture-cured, elastic waterproof coatings. When exposed to atmospheric moisture, the coating undergoes a chemical reaction, forming a tough, flexible, seamless, and elastic waterproof membrane with good overall performance. The membrane exhibits high tensile strength, excellent elongation properties, strong resistance to aging, and excellent crack bridging capabilities. However, many polymer-modified asphalt products on the market have a pungent odor and are not environmentally friendly.

Application Areas —

1. Underground waterproofing: basement slabs, interior walls, exterior walls, tunnels;

2. Bathrooms, kitchens, balconies, non-potable water tanks, drainage pipes, downspouts, etc.

Type A

Type B

JinXing currently offers both single-component moisture-cured polymer-modified asphalt waterproofing materials and two-component moisture-cured polymer-modified asphalt waterproofing materials.

Acrylic Waterproofing Materials

Acrylic waterproofing materials are an eco-friendly, elastic type of waterproof coating. They are based on pure acrylic liquid resin, enhanced with special modifiers, functional additives, and fillers through dispersion and mixing. These materials are non-toxic, odorless, non-flammable, and represent green, environmentally friendly products. They exhibit excellent elongation and tensile strength, and pure acrylic resins have outstanding aging resistance, resulting in a long service life for the waterproof layer. Additionally, they are easy to apply—can be brushed or rolled—and offer excellent workability. The formed waterproof membrane has continuous, seamless, elastic properties, making it highly convenient for complex structural joints. Due to their stable performance and reliable results, along with moderate pricing, they are widely used in home renovation and large-scale engineering projects.

Application Areas —

Various new and old building surfaces, wall surfaces, water tanks, swimming pools, for waterproofing, anti-seepage, and anti-moisture applications.

Polyurethane (JS) Waterproof Coating

JS polyurethane waterproof coating is a kind of organic liquid material made by blending high-elasticity resin with multiple high-molecular additives.It is environmentally friendly, non-toxic, odorless, has good breathability, bonds strongly with substrates, dries quickly, and adheres well.When mixed with water at a fixed ratio, it can be evenly applied. After coating, it forms a tough, highly elastic, and durable waterproof membrane.

Application Areas —

1. Suitable for waterproofing, anti-seepage, and anti-moisture applications in bathrooms, balconies, and similar areas;

2. Can be used as a single waterproof layer in multi-layer waterproofing systems for I & II class surface layers;

3. Type I products are suitable for buildings in short-term wet environments;

4. Type II and III products are suitable for waterproofing applications on exposed and submerged surfaces.

How to Choose?

After comparing and analyzing the above waterproofing materials, we summarize the following guidelines for selecting the right material based on different spaces:

Conclusion 1: For small spaces (e.g., apartments), bathroom, kitchen, and balcony waterproofing should not use sheet materials; instead, waterproof coatings are the best choice. For large spaces (e.g., hotels, commercial offices), waterproof sheet materials are recommended for base layer application.

Conclusion 2: Select different types of waterproof materials based on specific locations and substrate conditions.

Conclusion 3: It is not recommended to use rigid waterproof coatings alone as interior waterproof layers. Rigid coatings are mainly intended for leak sealing, while elastic coatings are better suited for large-area waterproofing.

Finally,In short, no material is perfect. Regardless of the type of waterproofing product chosen, one must pay attention to its pros and cons. Waterproof materials and construction must meet requirements such as durability against cracking, resistance to acid and alkali erosion, thermal aging resistance, resistance to fatigue stress, and ability to withstand substrate cracking—only then can long-term reliability be ensured.

As an eco-friendly waterproofing company, JinXing protects people, homes, and lives. We respond to government policies promoting green construction and continue to leverage our strengths, rooted in sustainable environmental protection, driving innovation to enhance product quality. We remain committed to our original mission—delivering high-quality, eco-friendly waterproofing solutions to our customers. JinXing waterproof coatings—quality you can trust!

Previous Article: Deep Analysis of China's Building Waterproofing Industry Development Direction! Next Article: 1-Minute Guide to Waterproof Coating Application Methods

Which Waterproofing Materials Are Stronger? How to Choose?

1 /