Acoustic Eggbox

Here at ASG we convert and supply a large array of non-metallic sheet materials including Polyurethane foam, in a number of grades, one of which includes acoustic convoluted egg box polyurethane foam, also sometimes called egg box foam or egg crate foam.  Egg box foam is usually manufactured in block form and then split to thickness as sheets using a specialist splitter which produces the sheets with a convoluted surface consisting of peaks and troughs. 

These sheets are available in several different thicknesses (measured from base to tip of the peak) and are usually supplied in pairs that interlock, especially when they’re being used for packaging purposes.  Acoustic eggbox sheets are usually available in thicknesses from 25mm to 50mm thick and in a standard sheet size of 2 meters by 1.2 meters but can be made to order at bespoke sizes.  

Acoustic eggbox foam can be supplied to customers as full sheets or we can convert the sheets into other usable products including pads and gaskets using one of our many presses, bandsaws or CNC machines. Egg box foam sheets can be supplied in a range of finishes using our in-house adhesive and laminating facilities, where they can also be laminated to other materials to produce composite sheets, or covered with one of our many foils or self-adhesives.

What are Acoustic Egg Box Foam Sheets?

Acoustic Convoluted Egg Box Polyurethane foam is an open-cell polyurethane product, manufactured to create a surface consisting of continuous peaks and troughs and containing flame retardant additives which creates a class ‘O’ non-flammable material with excellent sound-absorbing properties. 

Acoustic egg box foam sheets are split directly from jumbo blocks and are specially designed for sound absorption whereby the convoluted finish creates an increased surface area and therefore reduces echo and reverberation inside enclosures and studios. 

 Our acoustic eggbox foam sheets can be converted into a range of other products, or supplied in full allowing customers to cut their own parts as and when required.

Acoustic Eggbox

Product Enquiry

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






    Product Specification & Key Characteristics

    • Colour: grey (anthracite)
    • Sheet size: 2 meters x 1.2 meters
    • Flammability: Class ‘O’, UL94 HF-1
    • Density: 32Kg/m3

    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 Eggbox

    Samples can be submitted for testing upon request.

    Call now for sample requests or further help.

    Why use Acoustic Egg Box Foam Sheets?

    Acoustic egg box foam sheets, also sometimes called convoluted acoustic foam sheets or eggbox foam are a very popular product used for both packaging, usually in the form of case inserts, and for sound control in rooms such as cinemas, music studios or machinery enclosures. 

    Egg box foam is a very soft material that can be easily cut and will hold adhesives well so that they can be used to adhere to walls and ceilings, it also offers class ‘O’ flammability performance meaning it is safe to use within buildings and automotive applications.

    Advantages of Using Acoustic Egg Box Foam Sheets

    Acoustic egg box foam sheets offer a number of benefits and uses, they’re manufactured using a material that is open cell, soft, and flexible made with flame retardant additives, meaning it complies with UL94 HF1 standards. 

    Acoustic egg box PU foam sheets offer excellent sound-absorbing qualities as the textured surface profile creates a larger surface area, which disperses waves more efficiently than the flat-surfaced variant. 

    Our egg box foams can also be used as packaging or case inserts for securely transporting irregular shaped or delicate items which are securely sandwiched between 2 interlocking layers of the convoluted foam, offering to cushion, abrasion resistance and impact protection. 

    Applications that utilise acoustic convoluted egg box polyurethane foam sheets include HVAC systems, enclosures for machinery, compressors or generators, acoustic panels for sound insulation and within automotive and marine.  Acoustic convoluted egg box foam is easy to cut using scissors, knives or press tools.

    Benefits of using Acoustic Egg Box Foam

    • Odourless
    • Non-toxic, HCF & CFC and Dust Free
    • Suitable for packaging and acoustic applications
    • Durable and easy to cut
    • Shock and abrasive resistant 
    • Doesn’t support mildew or fungal growth

    Different Grades

    We at ASG supply a variety of materials with acoustic properties, with Class O acoustic foam being the most popular where a combination of soundproofing and flame retardancy is required.  It is a lightweight and flexible material excellent for use as pipe lagging, duct lining and engine room/automotive insulation and much more.  Class O acoustic foam is available in various forms including:

    • Class O acoustic foam sheet
    • Convoluted egg box foam
    • Foil-faced class O acoustic foam
    • Class O acoustic with barrier foam

    For help deciding which material you require, please give our sales team a call.

    Have a Question about Acoustic Eggbox?

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