KARMA VISCO 400/600 is an acoustic overlay board designed to attenuate impact and airborne sound passing through existing timber floors and can be laid direct to joists.

It comprises two layers of moisture resistant chipboard, separated by Visco – elastic sound damping strips with an acoustic felt resilient layer on the underside.


• 35mm product for 450mm joist centres, 39mm for 600mm centres maximum
• Boards can be installed directly to joists
• Acoustic felt contours over minor irregularities
• Will not add to existing fire hazard when properly installed

Karma Visco 400/600

  • Price Guide - £43.64+VAT


    Panel Size: 2400 x 600 x 35/39mm
    Weight: 20.5kg/m2 – 23.6kg/m2
    Laid Area per Board: 1.44m2

  • Quietstone Supplies products are normally available on a 2-3 working day turnaround once the order is processed, However please ensure to check with one of our technical team as turnaround times can vary.


    Please ensure that when ordering, the delivery location is accessible by large and articulated vehicles as some of our products will be delivered in this way, If you require additional information to be added to ensure the delivery is succesful, please ensure to tell one of our technical team on placing the order as Quietstone Supplies will not be held responsible for failed delivery attempts and additional fees for redelivery may be applied


    Due to insurance guidelines, delivery personnel are unable to enter private residences. Delivery will be as far as possible to the kerbside of the delivery address. The recipient of the products is responsible for any additional lifting once the delivery has been made. Please bear in mind that Insulation products can be bulky and / or heavy.

Quietstone (UK) Ltd

Nab Quarry, 

Pott Shrigley, 



SK10 5SD

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