Beijing Comens New Materials Co., Ltd.
Beijing Comens New Materials Co., Ltd.

Expansion Joint Sealant

Joints provide the necessary movement of materials while maintaining resistance to water, air, heat, cold, and vapor. Therefore, a urethane expansion joint sealant is required to accomplish this. The points of connection in a building are the most susceptible to leaks. Only high-quality movement joint sealant that is properly specified and professionally applied can ensure your building or structure remains leak-proof throughout its entire lifespan. Choose our polyurethane expansion joint filler to provide long-lasting protection and reliable performance for your project.

  • urethane expansion joint sealant
  • polyurethane concrete joint sealant
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  • urethane expansion joint sealant
  • polyurethane concrete joint sealant
  • expansion gap sealant

Features of Urethane Expansion Joint Sealant

1

Highly elastic polyurethane concrete joint sealant with significant ability to stretch.

2

Exceptionally flexible polyurethane expansion joint with great capacity for movement.


3

Durable expansion joint polyurethane sealant that is resistant to wear and tear over time.

4

Our polyurethane sealant for expansion joints has very low shrinkage during the curing process.

5

Surtek construction joint sealant can maintain its performance in extreme temperatures.

Specifications of Urethane Expansion Joint Sealant



Product modelSurtek 3511
ComponentOne component
Mixing Ratio-
Modulus/FlowabilityLow modulus
ColorGrey/white/black
Packaging310ml cartridge, 600ml sausage




Strategic Buffer Inventory: Polyurethane Expansion Joints Always in Stock for Critical Infrastructure Projects



  • VMI: We pre-stock customized polyurethane expansion joints in regional warehouses based on customer engineering progress data.

  • Seasonal regional reserves: Warehouses in tropical areas always have UV-resistant formulas, and warehouses in cold areas have -20℃ construction-type polyurethane expansion joint fillers.

  • System support: We use SAP/ERP to track global inventory in real time, and the response time for transfer is less than 48 hours.


What Makes Surtek Expansion Joint Polyurethane Sealant Stand Out?


  • Exceptional Flexibility: Surtek Expansion Joint Polyurethane Sealant offers outstanding flexibility, allowing it to accommodate the natural movements and expansions of building materials without cracking or losing adhesion.

  • Superior Adhesion: This urethane expansion joint sealant provides excellent adhesion to a wide variety of substrates, ensuring a long-lasting and reliable seal in both residential and commercial applications.

  • Weather and UV Resistance: Surtek’s polyurethane concrete joint sealant is formulated to resist harsh weather conditions and UV radiation, maintaining its performance and appearance over time.

  • Easy Application: As one of the construction adhesive suppliers with the best customer experience, we strive to make the sealant easy to install, easy to apply and fast curing, making it an efficient sealing solution for contractors and DIY enthusiasts.


Urethane Expansion Joint Sealant Gallery

We offer both one-component and two-component construction adhesives in PU, SILICONE, MS, and SPUR varieties for joint caulking.


The wide range of our polyurethane sealant for expansion joints can cater to a wide array of substrates and performance needs.


These application pictures show the use of sealants in construction and engineering projects. Surtek construction joint sealant has excellent performance in preventing water, dust and gas penetration.


brickwork expansion joint sealant
brick expansion joint filler
brick expansion joint caulk
brick expansion joint sealant

Polyurethane Concrete Joint Sealant FAQs

  • Q

    How to ensure the curing performance of sealant in a construction environment with continuous rainfall for 48 hours?

    A

    Our polyurethane concrete joint sealant contains moisture curing accelerator, which can achieve surface drying in less than 4 hours when RH>95%.

  • Q

    If the project requires a 10-year warranty, how does your company verify the aging performance and assume joint liability?

    A

    Our expansion joint polyurethane sealant has passed the QUV 6000-hour test (equivalent to 10 years of natural exposure)

  • Q

    Can the viscosity of the polyurethane expansion joint be adjusted for porous substrates?

    A

    Yes.

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