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Polyurethane Vibration & Sound Isolation Pads - China Suppliers & Factory for Effective Noise Reduction

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Introducing our high-performance impact noise reduction solution, perfect for new or renovated floor systems in residential buildings, hotels, offices, schools, and hospitals across China. Our product is crafted from a microcellular polyurethane elastomer through advanced continuous casting processes, ensuring superior durability and reliability.

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This acoustic underlayment is highly resistant to corrosion, acids, alkalis, oils, mold, insects, and aging. It operates effectively within a temperature range of -20°C to 90°C and boasts an impressive service life of over 60 years without the need for maintenance.

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Installation is a breeze due to its high flexibility, allowing for tight bonding with concrete slabs. This feature eliminates the risk of hollow spots and deformation, ensuring long-lasting performance. Our product also provides even stress distribution under both static and dynamic loads, accommodating load capacities of up to 5 t/m² without any loss in thickness.

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In terms of acoustic and fire performance, it offers a significant improvement of ≥20 dB in impact sound pressure levels (A-weighted), alongside flame retardancy rated at ≥ BAvailable in a thickness range of 2–30 mm, our sound insulation product meets the strict compliance standards of GB50118-2010 and HG/T5328-2018, as well as client specifications.

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Partner with us, a leading factory and supplier in China, to enhance your building projects with our top-of-the-line impact noise reduction solutions.

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    Product Details

    The inherent flexibility of the Polyurethane Vibration & Sound Isolation Pad allows it to conform tightly to concrete slabs without leaving voids or gaps. This close fit eliminates issues such as hollow spots, localised deformation, or uneven load transfer. Load distribution across the Polyurethane Vibration & Sound Isolation Pad remains uniform under both static (dead) and dynamic (live) loads. The Polyurethane Vibration & Sound Isolation Pad does not experience permanent thickness loss or creep over time, which ensures long-term acoustic and structural reliability.

    Gap-Free Conformity
    Flexibility allows tight conformity to concrete slabs, eliminating voids, gaps, and hollow spots.
    Uniform Load Distribution
    Provides balanced weight distribution under both static (dead) and dynamic (live) structural loads.
    Creep & Loss Resistance
    Prevents permanent thickness loss and creep over time for lasting acoustic and structural reliability.
    Frequently Asked Questions
    How does the Polyurethane Vibration & Sound Isolation Pad conform to concrete slabs?
    The inherent flexibility of the Polyurethane Vibration & Sound Isolation Pad allows it to conform tightly to concrete slabs without leaving voids or gaps.
    What issues are prevented by the tight fit of this pad?
    The close fit eliminates structural issues such as hollow spots, localised deformation, or uneven load transfer.
    How does the pad perform under different types of structural loads?
    Load distribution across the Polyurethane Vibration & Sound Isolation Pad remains uniform under both static (dead) and dynamic (live) loads.
    Does the isolation pad suffer from thickness loss over time?
    No, the Polyurethane Vibration & Sound Isolation Pad does not experience permanent thickness loss or creep over time.
    What guarantees long-term acoustic performance for this product?
    Its resistance to permanent deformation, combined with consistent uniform load distribution, ensures long-term acoustic and structural reliability.

    Technical Specifications

    Item

    Unit

    EN standard requirement

    Thickness*

    mm

    7-15

    Static stiffness*

    N/mm³

    0.02-0.25

    Insulation resistance

    Ω

    ≤10⁸

    Compression set

    %

    ≤ 10

    Applicable standards

    DIN

    DIN 45673-7:2010

    Change after 10 million load cycles

    Static stiffness & thickness variation

    %

    ≤ 10

    Items with * can be customized according to the line requirements.
    Custmized Railway Ballast Vibration Reduction Mat EN Standard101

    Application

    Widely used across China’s rail network, the Elastic Ballast Mat delivers proven results. Installed under the ballast bed, it boosts track elasticity, cuts down ballast breakage, and improves load distribution—especially on curves and turnouts. Designed with a puncture-resistant top layer and an elastic damping layer, Ballast Mat performs reliably with or without retaining walls.

    Quality Assurance

    We have designed, manufactured, and exported ballast mats for over 20 years. Our products are installed on more than 40 metro lines across major Chinese cities like Beijing, Shenzhen, Wuxi. Customer satisfaction stands at 98%.
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    Before leaving our factory, the ballast mats will be tested strictly according to standard requirements . For customers who require more, we carry out type tests at our in-house testing centre. 

    Tests include:
    • Fatigue testing
    • Static and dynamic stiffness measurement
    • Tensile testing

    This process verifies Elastic Ballast Mat reliability under real working conditions.
    • Custmized-Railway-Ballast-Vibration-Reduction-Mat-EN-Standard01_01
    • Custmized-Railway-Ballast-Vibration-Reduction-Mat-EN-Standard01_03
    Custmized Railway Ballast Vibration Reduction Mat EN Standard101

    Production Capacity

    We handle Ballast Mat production in-house at our dedicated continuous foaming workshop. The facility runs on an automated German production line, giving us consistent quality and high output. Current annual capacity stands at 900,000 square metres of Railway ballast vibration reduction mat.

    Custom Mould Design & Manufacturing

    – In-House, Start to Finish
    Our Mould Engineering Department operates a full digital workshop equipped with more than 20 CNC machines, including machining centres, spark eroders, and wire cutters. This allows us to design and manufacture a wide range of moulds for the rail transit industry – injection moulding, rubber, SMC, and specialised types such as auto-core-pulling bush moulds.

    Annual output stands at 300 sets of moulds and tooling.

    If your project calls for a non-standard shape for Elastic Ballast Mat, a special material, or a unique production feature, we have the equipment and the experience to deliver.
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    Custmized Railway Ballast Vibration Reduction Mat EN Standard06

    Packaging & Shipping Options

    We keep packaging practical and flexible. Customer choose what works best for their order.
    Outer packaging is included as standard.
    For pallets, we offer two options:
    • Plywood pallets – for standard shipments
    • Solid wood fumigated pallets – certified for export where required
    • All packaging follows standard export practices.
    If you have specific labelling or marking requirements, let us know in advance.
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