Sound Deadener/ Sound Deadening Material - Stage 1

Sound Deadener - Stage 1 - 1 Box - 1.8 - OEM Black
Sound Deadener - Stage 1 - 1 Box - 1.8 - OEM Black


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Package Deals - Buy more and save
1 x Box (SD) 1.8sq/m 12 Sheets - Door/Boot Kit $99.00
2 x Boxes (2SD) 3.6sq/m 24 Sheets - Floor Kit $179.00
3 x Boxes (3SD) 5.4sq/m 36 Sheets - Boot & Floor Kit $260.00
4 x Boxes (4SD) 7.2sq/m 48 Sheets - Build Kit - Complete Car $339.00
Bonus Deals!
Buy any Sound Deadener and add a Roller for only $16! Save $9 +$16
Buy any Sound Deadener and add an Install Kit for only $26! Save $9 +$26

Car Builders Sound Deadener is a vibration (sound) dampening mat. The material consists of an anti-drum noise absorption layer, combined with an aluminium top layer forming a heat and acoustic barrier. Its pressure sensitive self-adhesive back conforms and fuses easily to sheet metal and other hard substrates. It has excellent performance for acoustic dampening under varying temperature ranges and is highly resistant to aging.

Butyl Mat is today’s alternative to traditional bitumen body dampening. Our Sound Deadener is best suited to restorers, repairers, vehicle builders and audio enthusiasts, who demand acoustic and heat insulation as bench marked by leading automotive manufacturers.

Installing Sound Deadener

See more clips on installing on our YouTube channel


Sound Deadener comes packaged in 1.8sq/m (20sq/ft) boxes, see below

     1 x box contains:

               12 x sheets



     Sheet sizes are:

              300mm x 500mm



Black Butyl based core with 4 mil silvery aluminium reinforced layer backed with white wax paper release liner.

2.0 - 2.2mm

3.2kg/p sm

Acoustic Loss Factor:
(ASTM method E756 @ 200Hz, Temperature range -10°C to +60°C)
0.08 to 0.41

Recommended Install Temperature:
-10°C to +60°C

Resistance Temperature Range:
-40°C to +149°C

Chemical Resistance:
Resistant to water and mineral oils

Adhesive Peel Strength:
65N/cm on cold steel

Product should be stored at room temperature for best application and should be stored horizontally in its package.

Customer Reviews

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Good stuff

By: on 26 July 2020
Good product, easy to install


The proof is in the pudding

By: on 20 July 2020
I have purchased and installed the sound deadener using the install kit to my Landy Defender. The difference is immense, I can finally hear whats playing on the radio. Cannot speak highly enough of the product


Stage one sound deadener

By: on 8 July 2020
Very happy with this product , made massive difference to cabin noise in my Troopy ,can not wait to finish it of with blanket . installation was piece of cake thanks to step by step videos . Thank you for great product and support


A+ Product

By: on 30 June 2020
Easy to shape and apply to flat and curved surfaces. Did the side walls and wheel arches on my van. That tinny sound has gone.


Sound deadener stage 1

By: on 23 June 2020
Package arrive quickly, product easy to apply, good value


Quality products A+

By: on 8 June 2020
Always a pleasure dealing with Top quality gear and assistance that really makes the difference.


Sound deadener

By: on 18 May 2020
Awesome product super easy to use


Stage 1 kit! Great product and speedy delivery

By: on 8 May 2020
I bought the stage 1 kit for a 78' Mini and it's great to work with. Does what was advertised and the online videos are handy when it comes to installation. I'd recommend this product to anyone doing an interior restoration who is wanting soundproofing and an extra layer of surface protection. Cheers CarBuilders, will be purchasing from you again.


Amazing product!!

By: on 27 April 2020
Highly rate car builders stage1 sound deadener! Was reccomended to use car builders products over the cheap stuff you can find on ebay - so glad I listened as these products are really good quality and can not fault. Thankyou car builders!!


Sound deadener

By: on 26 April 2020
Amazing product makes loads of difference. Great product and great people to deal with


Good stuff

By: on 16 April 2020
Good quality product and delivered very fast. Has made a huge improvement to my van..... went from sounding like a tin can to a luxury car



By: on 15 March 2020
Easy to install, massive difference


Fantastic product

By: on 9 February 2020
This product is of very high quality and very easy to install, highly recommend it.


"sounds" good

By: on 24 January 2020
Great product


Top Quality products, Happy as hell

By: on 27 November 2019
Got my delivery super fast and hassle free. The body deadener is awesome, love it so much I'm gonna leave it all exposed. Easy to install and fix if you make a mistake. Anyone can do it if you have the roller. Used it in my xf Skid car and came out beautifully. Thank you soooo much guys for the amazing products keep up the great work