Karma Visco 400 Acoustic Floor Panels

The Karma Visco 400 is a high performance acoustic panel, particularly suited towards conversion projects that require a new structural deck over joists, in addition to acoustic performance. If you are a DIYer, please contact our team for soundproofing help and advice.

Impact Rating

Rated at 55 dB

Airborne Rating

Rated at 50 dB


35 mm


Covers 0.96m2


29.5 kg


£49.16 /

inc VAT


£40.97 /

ex VAT

Out of stock

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Product Description

Ideal for conversion projects, the Visco 400 panels offer exceptional acoustic performance, especially when there is a need to provide a new structural deck with acoustic properties over timber joists.

Visco comprises of 4 individual elements: T&G chipboard, Visco elastic strips, OSB III and chipfoam. Each element plays a key role in the Visco 400’s high acoustic performance, for example the elastic strips dampen the sound vibrations before they reach the building, reducing any airborne noise.

When testing in a complete flooring system including 225mm timber joists, 100mm slabs and resilient bars, the Visco 400 has been deemed fit to satisfy the requirements of Approved Document E. The Visco 400 is an extremely versatile product in terms of floor finishes for example the floor panels can be used in conjunction with carpet, tiling or wooden floors. However, there are some floors that require more attention that other for example when applying vinyl to the acoustic floor panels, the panels should be overlaid with 6mm plywood or hardboard to prevent mirroring of the joists.

• Excellent impact and airborne sound performance.
• T&G edge profile for ease of installation.
• Can be laid directly to the surface of any exposed joists.
• Can be used with most floor finishes.



The soundproofing ratings of this product are 55dB impact and 50dB airborne.

These figures aren’t a measure of the reduction that the product gives, but is the figure that you would get following a soundproofing test, on the same or a similar full floor set-up to the one used during testing (not just the product in isolation).

Please see the product specification for more details on how these figures were achieved.

Need Some Assistance?

If you need any assistance in understanding our product range, please don’t hesitate to call our customer service team on 01484 411888.

Who is this product for?

This product is ideal for settings that require additional floor height and a soundproofing solution that can be laid over existing joists.

The panels are easy to lay with their built in T&G, offering a fast and effective solution for domestic and commercial environments.

Technical Specification

Area 1.44m2
Dimensions 2.4m x 0.4m x 35mm
Thickness 35mm
Weight 29.5kg
Impact Noise Rating 55dB

The information given here may vary and is partly based on information from our suppliers. It represents the prevailing level of expertise and is not binding in a legal sense. The compliance of legal requirements lies within the customers own responsibility.

You can find all of the information shown here on one of our product data sheets which are in a PDF format. You can download this below.

Technical Data Sheet
Product Data Sheet


On average, this item takes 2 to 3 working days to be delivered to a UK Mainland address.

Our delivery rates are calculated on an order value basis. All standard deliveries are delivered by couriers (company variable) and can be received up to 3 to 5 working days from order (6 working days if you order after 12.30pm on a weekday).

All available delivery options for this item can be selected at the check-out and if you order before 12pm Monday to Friday, your order will be processed the same day.

Need it quickly?

We may be able to deliver this item on a next day service, please contact us to arrange this prior to ordering.

Please note: this item is delivered on a double pallet – a surcharge of £45+vat will be charged on top of any usual carriage rates.


You should never book fitters before you have received your goods, we cannot be held responsible for costs incurred by yourself as a result of delivery complications and/or delays.

Deliveries are palletised and heavy, therefore our delivery services are to kerb-side only – you will be responsible for moving the goods from the roadside to the property.

Shortly after placing your order, you will receive a delivery date confirmation email. This email will detail the day of delivery which can take place any time between 8am and 6pm. If you require a more accurate time slot, please contact us prior to ordering and we’ll do our best to assist you; this could be at an additional cost.

For full delivery details, including timescales and Terms & Conditions, please click here

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