water swelling sealant

Why Choose Underground Basement Waterproofing Solution?

Ensure Leak-Free Basements and Foundations with Professional-Grade Underground Waterproof​ Caulking— Ideal for Large Commercial and Infrastructure Projects.

  • Excellent Extensibility and Strength
    Good extensibility with high tensile and tear strength ensures reliable performance under structural movement.

  • Superior Adhesion
    Bonds well to various substrates without the need for a primer, simplifying application.

  • Permanently Elastic and Durable
    Maintains elasticity over time to accommodate structural movement and prevent cracks.

  • UV and Weather Resistant
    Excellent resistance to UV, rain, and other weather conditions ensures long-term performance..

excellent adhesion

High Adhesion

weather resistant

Weatherproof

instant drying

Fast Curing

aging resistant

Aging Resistance

Moisture Curing

Moisture Curing

sag resistance

Non-sag

underground basement waterproofing recommend

TP640-220/400 Water Swelling Polyurethane Sealant

One-part, neutral-cure silicone sealant with excellent adhesion. Forms durable, elastic seals for weatherproofing on various materials, with outstanding weather resistance.

View Product Details

Leaks slowing down your underground project?

Our waterproofing system forms a seamless, long-lasting barrier that resists groundwater and soil pressure—reducing rework and protecting your structure. Bulk supply or trial batch ready now.

Underground Waterproofing applications

Expanding Sealant Waterproof Polyurethane Sealant

Professional Underground Waterproofing for Concrete Structures Projects

Our Underground Waterproofing system is engineered for demanding below-grade applications, including:

  • Waterproofing of basements, foundations, retaining walls, and underground structures exposed to constant groundwater pressure.
  • Sealing and protection for concrete joints, construction joints, and penetrations in below-grade environments.
  • Long-term moisture and water ingress control for infrastructure and civil engineering projects.
Contact us
Basements_&_Foundations

Basements & Foundations

High-performance waterproofing for basements and foundations, resisting groundwater pressure and long-term moisture exposure.

Underground_Joints

Tunnels & Underground Structures

Durable waterproofing solution for tunnels and underground structures, accommodating structural movement and harsh underground conditions.

Tunnels_&_Underground_Structures

Underground Joints

Reliable sealing for underground joints, pipe penetrations, and construction interfaces. Forms a seamless waterproof barrier.

Get your underground basement waterproofing solution today

    Latest News

    Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod .

    Our blog
    Automotive PU Sealant for Windshield and Body Applications: Product Selection and Supply Considerations

    When sourcing Automotive PU Sealant, the key question is not simply which product to buy, [...]

    How to Select the Right Fire Rated MS Polymer Sealant for Construction Projects & Bulk Supply

    Looking for a reliable 4 hour fire rated joint sealant for your next project? Before [...]

    MS Polymer Sealant for Precast Building Joints: A Reliable Solution for Construction Projects

    Joints in prefabricated buildings must withstand temperature changes, joint movement, rainfall, and long-term outdoor exposure; [...]

    Why Is Neutral Silicone Weather‑Resistant Sealant Suitable For Bonding WPC Boards

    WPC (Wood-Plastic Composite) boards are primarily used in outdoor projects such as decking, fencing, and [...]

    Why Acetoxy Silicone Sealant Is Ideal for UAE and Latin America Climates

    Hot temperatures and intense sunlight across the UAE and Latin America demand sealants with strong [...]

    Silicone Sealant Yellowing: What Contractors Need to Know

    In many construction projects, white silicone sealant is selected for windows, doors, and glass facades. [...]

    Acrylic Caulking Sealant Solutions for Construction Projects: How to Match the Right Product

    Acrylic Caulking Sealant is commonly used for interior joints, window and door frames, wall cracks, [...]

    Why Does Silicone Sealant Turn Yellow? Causes and Solutions

    Silicone sealant yellowing is a concern for many contractors, distributors, and building material purchasers regarding [...]