Car Builders Acoustic Liner Carpet Underlay - Stage 2

Acoustic Liner – Lightweight Peel & Stick Insulation

Car Builders Acoustic Liner is a modern, multi-layer insulation solution designed to outperform traditional jute underlay. Made from a blend of open and closed cell foam, this product delivers exceptional acoustic and thermal insulation in a lightweight, easy-to-install format.

With a built-in peel-and-stick backing , Acoustic Liner eliminates the need for messy adhesives (unless used in an inverted position), and won't rot, mold, or break down over time. It's the smart choice for anyone looking to insulate and quieten their vehicle interior with professional-grade materials.

Features:

• High-Performance Insulation – Reduces both heat and noise
• Peel & Stick Installation – No glue required for standard applications
• Clean & Durable – Will not rot, mold, or deteriorate like old jute and cotton underlays
• Easy to Work With – Cut to shape using scissors or a knife
• Lightweight Construction – Adds comfort without adding bulk

Ideal For:

• Under carpet
• Inside door skins
• Quarter panels
• Firewalls
• Interior cavities

Coverage:

Each box includes one sheet measuring 950mm x 1800mm (1.7 m² coverage).

Upgrade your vehicle’s comfort and performance with a cleaner, longer-lasting underlay that’s built for modern builds.

Acoustic Liner Carpet Underlay FAQ

What thickness carpet underlay should I use?

Carpet underlay thicknesses range between 4-12mm. This range allows you to insulate effectively and fit it under tighter areas such as the transmission tunnel.

( AL_PARENT )

Specifications

Sheet dimensions

Length:

1800mm

Width:

950mm

Thickness:

12mm

Total Weight:

1kg

Weight/Sqm:

0.55kg

​ Material:

6mm open cell foam (lighter grey colour) and 6mm closed cell foam (darker foam on top).

​ Material temperature resistance:

Cold Resistance:

- 40°C

Heat Resistance:

short term + 135°C, long term +110°C

Adhesive temperature resistance:

Cold Resistance:

-40 °C

Heat Resistance:

short term + 150°C, long term +135°C

Flame Retardant:

Grade B2

Heat Conductivity Factor:

<= 0.034 W/(M.K) at 0°C