Acoustic Barrier Foam Pads

Here at Advanced Seals and Gaskets Ltd, we offer high-quality cut pads in a range of sponge and solid polyurethane variants, one of which includes class ‘o’ Acoustic Polyurethane Foam with Barrier Pads. Inhouse design and manufacturing enable us to work closely with our customers and provide high-quality pads to match their specifications, drawings or samples, whilst keeping lead times to a minimum as we do not need to rely on external third party manufacturers. 

Regardless of the size and quantity of pads required, one of our many presses, bandsaws or CNC machines can be used to convert the finished product, from one-off samples to multi-thousand batch runs (depending on size) Acoustic Polyurethane with Barrier Pads can be supplied as loosely cut parts or kiss-cut on a roll where a high quantity and ease of use is required for use on fast-paced assembly lines. 

As our class ‘o’ acoustic barrier pads are manufactured on-site,  we are able to offer any thickness up to 100mm and in a range of composite combinations using the acoustic foam and layers of a mass loaded vinyl barrier, which can be supplied plain, self-adhesive backed or with a foil backing.

What are Class ‘O’ Acoustic Polyurethane with Barrier Pads?

There are many types of Polyurethane materials we can use to cut pads,  one of which is Class O acoustic foam, used to manufacture our Class 'O' Acoustic Polyurethane with Barrier Pads.  This particular variety of material is open cell, lightweight, flame retardant, non-dusting, doesn’t support mildew or fungal growth and has s excellent thermal insulation and noise absorption properties.  The addition of the mass loaded vinyl barrier layer creates a composite material, which is designed to reduce noise within enclosed areas, whilst being fire resistant. 

Generally, the mass loaded vinyl barrier is sandwiched between 2 layers of acoustic foam, however, more than one layer can be added depending upon the level of soundproofing required.  The barrier sheets are available in 3 weights and thicknesses as standard, 5kg (2.5 - 3mm thick), 7.5kg (3 - 4mm thick) and 10kg (4-5mm thick), the heavier the weight, the more soundproofing properties the sheet will offer.  The mass loaded vinyl or MLV is a thick flexible material that has been specifically designed for soundproofing, made up using a combination of calcium silicate or barium sulfate which create the sound deadening property, combined with vinyl which makes the material flexible for easier installation. 

Using in-house machinery ASG can produce Acoustic Polyurethane with Barrier Pads as squares or rectangles with the option of radius corners, and also as circular or oval-shaped pads or ‘discs’, in a range of thicknesses.  Manufacturing pads in-house means we can supply them in a plain or self-adhesive backed finish and even laminate multiple types of material together to create bespoke and unique variations.

Acoustic Polyurethane With Barrier Pads

Product Enquiry

For information on Acoustic Barrier Foam Pads please complete the following quick enquiry or call us on +44(0)1384 252555.

    Product Specification & Key Characteristics

    • Colour: Anthracite
    • Density: <90KG/M³ (acoustic foam layer)
    • Fire Propagation Index: <12
    • Flammability Standards: Class O Acoustic Foam: tested in accordance with BS476 part 6 & 7  
      • UL94 V-0 flammability rating
    • Barrier: Self-extinguishing (FMVSS302)
    • Operating Temperature: -30°C to 100ºC
    • Thickness: 1mm – 100mm (can be laminated for greater thickness)

    Full technical data can be supplied upon request,
    or downloaded from our online portal.

    Help and guidance

    If you would like to speak to a representative to discuss your specific application or requirements please call our sales office direct on 01384 469100, alternatively you can send an E-mail. Simply click on the link and forward us your details along with your question and we will contact you immediately.

    Samples - Technical Acoustic Barrier Foam Pads

    Samples can be submitted for testing upon request.

    Call now for sample requests or further help.

    Why use Class ‘O’ Acoustic Polyurethane with Barrier Pads?

    Class ‘O’ Acoustic Polyurethane with Barrier Pad (MLV) sheets have been designed for use where a high degree of soundproofing is required within enclosed areas. The creation of the composite barrier sheet combines a noise barrier and sound absorber into a single product, which also helps with sound transmission loss and vibration dampening even when cut into smaller pads.  

    Being a class ‘O’ material, these Polyurethane with Barrier Pad sheets are flame retardant, making them safe to use in a range of industries including HVAC, construction and automotive where they are often found used to fill gaps between fixtures and fittings and used for thermal insulation, heat protection, cushioning, noise and vibration dampening and padding within building, vehicles, engines, machinery or enclosures.   

    The addition of the mass loaded vinyl barrier to the Acoustic Polyurethane with Barrier Pads, enables the composite sheet material to be used for blocking out everyday sounds and noise from loose or moving parts or reduce the running sound from engines or machinery.

    The Advantages of using Class ‘O’ Acoustic Polyurethane with Barrier Pads

    Using Class ‘O’ acoustic polyurethane foam barrier Pad materials offers a huge number of benefits and uses.  Not only do they help with soundproofing, but they also act as sound and vibration absorption panels, and can help sound transmission loss. 

    These Acoustic Polyurethane with Barrier Pad sheets and products, including pads, can be used to assemble soundproof enclosures in which noisy machinery and equipment can be housed and also as fittings within automotive and HVAC applications, to fill gaps between fixtures and fittings and used for thermal insulation, heat protection, cushioning, noise and vibration dampening and padding within building, vehicles, engines, machinery or enclosures and housings.  

    As the class ‘o’ foam is flame retardant, it is often one of the safest materials to use within building and construction for soundproofing underlay under flooring, combined with plasterboard on walls and ceilings, especially studios or home cinema rooms and even within engine rooms such as on marine vessels. 

    The addition of the MLV barrier to the foam creates further features and properties to the acoustic PU foam, it allows the polyurethane foam to block more noise compared to using the foam by itself, its allows for noise absorption rather than blocking it out and finally many soundproofing boards or tiles can be quite rigid and therefore difficult to cut and install, whereas the MLV barrier is flexible, therefore easy to curve and wrap around corners, pipes and to fit perfectly within housings, etc.

    Benefits of using Class ‘O’ Acoustic Polyurethane with Barrier Pads

    • Can be used within floor, wall or ceiling linings for soundproofing
    • Reduce unwanted vibration
    • Flame retardant
    • Can be supplied as cut barrier material alone or laminated between acoustic foam
    • Sheets can be cut down into smaller parts such as pads
    • Available in various thicknesses, weights and variations of layers
    • Doesn’t support mildew or fungal growth

    Different Types Available

    The soundproofing barrier material can be supplied in a range of formats, as the mass loaded vinyl barrier sheet alone, alternatively, it can be supplied laminated to class ‘o’ acoustic foam to create composite sheets.

    Mass loaded vinyl barrier is available in 3 weights:

    5kg - thickness approx 2.5mm - 3mm (Acoustic performance 26 dB approx)

    7.5kg  - thickness approx 3mm - 4mm

    10kg - thickness approx 4mm - 5mm (Acoustic performance 32 dB approx)

    Finishes: Class ‘O’ acoustic Polyurethane foam with Barrier can be supplied plain, with a self-adhesive face to allow for quick and easy installation, or covered with a foil face with the option of a scrim lined foil, which increases the insulation properties of the acoustic barrier sheets even further.

    Have a Question about Class ‘O’ Acoustic Polyurethane with Barrier Pads?

    Please contact us using the form below or by calling us on +44(0)1384 252555.