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Chova Viscolam Mass Loaded Vinyl Soundproofing Membrane (Spain)

(7 customer reviews)
In stock
In stock

Technical Specifications:

  • Thickness (mm): 2/4/6 mm
  • Density (kg / m3): 1600 kg / m³
  • Average weight (kg / m²): 3.2kg – 9.6kg
  • Sound insulation (Rw, dB): Upto 67 dB for airborne and impact noise
  • 5 year warranty

8,200.00 incl GST

Bulk/Project Enquiry

Product Description

Chova Viscolam 65 Mass Loaded Vinyl is an elastic high density viscous membrane, specially designed to improve sound insulation in various soundproofing systems. It is an excellent barrier to noise transmission due to material properties such as high density (1600 kg / m3), strong isolation factor and required elasticity.

Technical Specifications:

  • Thickness (mm): 2mm / 4mm / 6mm
  • Density (kg / m3): 1600 kg / m³
  • Average weight (kg / m²): 3.2 – 9.6
  • Sound insulation (Rw, dB): Upto 67 dB for airborne and impact noise
  • Calculations. Test LABEIN B130 by CT-109 I


  1. Cut a portion of ViscoLAM according to the size of the partition designed for soundproofing using a cutting tool.
  2. Fix ViscoLAM on the gypsum board in any of the following ways:
    1. Through metal screws with fixing washer
    2. Using brackets (8, 10 or 12 mm)
    3. By contact glue.
  3. Placing must be done against gypsum board joints.
  4. Repeat the following steps the required number of times according to the soundproofing system you selected.


  • Reinforcement of acoustic systems with wooden constructions or plasterboard.
  • Cases with limited space for sound insulation
  • Acoustic insulation and vibration reduction in metal sheet structures.
  • Design of various acoustic solutions and alternatives such as doors, screens, soundproof walls.

Product Life:

Chova Viscolam is designed to last until the life of the building (> 15 years). The product carries a 5 year warranty against manufacturing defects.



Home Theater, Recording Studios


Mass Loaded Vinyl

Units in Box



5 Years

Product Variant

Viscolam 100 (6mm), Viscolam 35 (2mm), Viscolam 65 (4mm)

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4.86 out of 5 stars

7 reviews

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What others are saying

  1. good for impact sound

    Javed Khan

    I use this under the carpet for sounds management on my office mezannine which is made from fibercement board. FYI – It’s very heavy stuff! But has solved the problem of impact sound which was very irritating.

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  2. Shrikant S

    I purchased this product to quiet the sound of water in PVC waste pipes in my duplex house. The plumbing is constructed in such a way that the PVC pipes run under the slab to the exit conduits. I wrapped it around the waste pipes as recommended by Aural Exchange. The result is nothing short of amazing. Earlier we could hear water coursing through the walls and ceiling after a toilet was flushed. I never imagined that it would work so well. My PVC pipes are now as quiet as cast iron pipes.

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  3. 2 out of 2 people found this helpful

    mass loaded vinyl

    Subhash Purohit

    I’m an acoustic consultant and I’ve used Tecsound for years, but got this because it was almost half the price and I found this to be a reputed brand from Europe. Easy to work with and great results!. I recommend it. Use a high strength adhesive like SR or Speb 7 to hold it up – regular glue wont work. Glad Aural Exchange is raising the bar by introducing so many cool products 🙂

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  4. Jayaraman

    Used 2 layers covered with Gyproc Habito board. I stapled on each layer with a pneumatic staple gun. My neighbours kitchen wall is unfortunately our bedroom wall too. THEY ARE EXTREMELY NOISY PEOPLE & BANG A LOT OF STUFF AROUND EVEN AT NIGHT. THIS STUFF IS AMAZING. We never hear our neighbours anymore. I HIGHLY HIGHLY RECOMMENDED THIS STUFF. It is super heavy to put on the wall, so you need to people, so not to hurt your back. This is a godsend and we appreciate the excellent advice given by Aural exchange team.

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  5. quick delivery

    Shawn Gomes

    Got the product in one day – so that was as fast as Amazon prime! I’m using Viscolam 35 for making membrane bass traps, which is not really to block sound, but instead to act as a dampener for a particular frequency. Still struggling to get the results. Material is good, well packed.

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  6. good vfm

    Mukul Deo

    Amazing stuff. Two layers on the door and windows down my space cut the sound to almost zero in my home practice studio. Drumming bleeds through just a bit, but the difference is night and day. Worth every rupee. Very heavy and needs two people to handle – I’m using Viscolam 100, which is the top variant.

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  7. Pradip Sharma

    I received this item yesterday and installed it with great difficulty as it is very heavy. Now it’s dead silent in my recording studio and no noise bleeds out even when I turn up the volume at a high level. I definitely recommend this!

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Our head-office is in Mumbai; however, we don’t have a showroom or physical stores. We're an online company - we distribute our products online all over India via a distributed warehousing system - we have warehouses in 8 locations. Since our products are technical and used for solving specific acoustic problems, they do not attract walk-in customers. If you want to buy our products, just place your order online or reach out to us via the contact forms.
We do not offer Cash on Delivery. Our products are extremely large and bulky - you can fit a human being into most of our boxes. As a result, one of the highest costs in running this company is the money paid to courier companies like Fedex, XPressBees, etc, which runs into crores of rupees annually. If we allowed COD and the buyer changes their mind and refuses to pay during delivery, we incur double shipping costs (a) for sending the product to the buyer + (b) for shipping the product back to our warehouses. In some cases, this may be more than the value of the product itself. For this reason, we find it impossible to offer Cash on Delivery.
We follow maximum transparency in showing you actual delivery dates at a product level. The exact delivery dates are visible on each product page, cart page, checkout page, as well as your order confirmation emails. Once your order is shipped, regular shipping updates are provided via SMS.
We supply products only. We're an ecommerce company and our focus is on importing, distributing, manufacturing, and supplying a wide range of technical isolation & acoustic products across India. For installation you can engage local contractors / carpenters. Please contact us if you need specific information on installing any product in our catalog.
We accept returns upto 30 days from the date of receipt of product. If you need to return a product, just contact your sales representative and we will arrange a reverse pickup via Fedex. Your refund will be processed within 3 days after we get it back. We charge a 15% fee for restocking the product so this is subtracted from your refund. This is waived off if you have not removed a product from it's original packing and are returning it unused.
Your order could be in several spots... our warehouse, our custom-shop manufacturing units, anticipating dispatch, with the courier on its way, or conveyed. The principal thing to check is have you had your dispatch email? If yes, at that point it's en route. You can track your order by clicking your tracking link from that email. In the event that you haven't got your dispatch email within a week of placing your order, please do contact us.
ONLINE PAYMENTS: Pay us via Netbanking, credit cards, debit cards, wallets, or UPI via our online payment gateway. Over 95% of our customers use this option as it is fast and secure. CHEQUE/DD/DIRECT CASH DEPOSIT: You can deposit a cheque OR Demand Draft OR do a cash deposit into any of our Bank's ATM dropbox/branch near you. The cheque should be in favour of AURAL EXCHANGE and you must mention our account number behind the cheque. You can also mail us At-Par Cheques and Demand Drafts. Please do not mail us cheques unless they are "At Par" cheques. Company Name : Aural Exchange Bank Name : HDFC Bank Account No : 50200021982013 Branch : Sahar Road Branch ( Vile Parle East) IFSC Code : HDFC0000668
Our limited warranty covers any manufacturing defects in materials and workmanship (excluding normal wear and tear) for the products listed below that are purchased in India. We offer 1-5 year warranties depending on the brand. You can view warranty information on the individual product pages. You are solely responsible for all shipping and insurance costs for returning the product to Aural Exchange, and you will not be reimbursed or compensated for any loss or damage incurred during return shipping. Aural Exchange will at its sole discretion repair or replace the product. Should the product no longer be available, we reserve the right to exchange this with a product of similar performance and value. Due to different dye lots, Aural Exchange cannot guarantee exact colour match. This Warranty shall solely extend to the original owner and is limited to manufacturing defects and excludes damage due to improper installation, freight handling, wear and tear, abuse, misuse, misapplication, colour fading or deterioration due to prolonged exposure to ultra violet light, smoke, humidity, water exposure, or other environmental factors. It is understood that the use and suitability of the product is entirely the responsibility of the buyer or specifying engineer and as such, these parties agree to hold Aural Exchange, or its associated company, and/or officers, harmless from any responsibility whatsoever other than what is clearly outlined in this warranty.
This warranty is void if the product is found to have been tampered with or misused by the purchaser, and shall not apply if the product has been physically damaged intentionally or due to accident and/or neglect, including burns, cuts, water damage, fungus, mold, stains, or is otherwise abnormally soiled or unsanitary. Any problems that are caused by abuse, misuse, or weather-related destruction are not covered. Products designed to customer supplied specifications and/or using or including a) customer supplied materials or b) non-standard production techniques or materials are not covered. Also, consequential and incidental damages are not recoverable under this warranty. Additionally, the products listed below are not covered under this warranty: 1. Accessories & Enhancements 2. Installation Materials 3. Product Samples To minimise colour-fading of acoustic foam products due to exposure to oxygen and ultra violate light, carbon is employed during the colouring process. This does not guarantee the colour fastness of the foam component and you should expect the appearance to change over time. Colour fastness is not covered under the Warranty. This warranty does not cover damage to furniture or equipment caused by contact with or destabilization of the foam components or adhesives and hardware used for installation. Care should be taken when placing the product on finished wood surfaces or other surfaces to ensure there will not be a chemical interaction between the surface finish and the foam component.