Automotive aluminium foil insulation mat for firewall heat and sound control

Reduce engine noise and heat transfer inside your car with this polyester fibre insulation mat faced with aluminium foil. Designed for the firewall and other engine-bay surfaces, it helps maintain cabin comfort and protect sensitive components from radiant heat. Available in three thicknesses – 5mm, 10mm, and 15mm – each sheet measures 50cm by 200cm in a convenient rectangle shape. The silver aluminium foil finish reflects heat while the fibrous core absorbs sound vibrations.

Features and Construction

Built from two functional layers, this mat combines heat reflection with sound damping in a single sheet that can be cut to size.

Material and Build

The outer layer is aluminium foil, which bounces back radiant heat and provides a clean, durable surface. Beneath it lies a polyester fibre core that absorbs airborne sound and reduces vibration transmission. The material is light enough to handle easily and can be trimmed with standard tools.

Size and Practical Fit

Each sheet measures 50cm x 200cm, offering a generous area for covering firewall sections, transmission tunnels, or floor panels. Choose from three thickness values – 5mm for tight spaces, 10mm as a balanced option, or 15mm for maximum insulation. The rectangle shape allows simple cutting and positioning without complex patterns.

Colour and Appearance

The silver colour comes from the aluminium foil facing, which looks clean under the bonnet and matches standard engine-bay finishes. No additional coating or paint is required.

Uses and Placement

This mat is intended for automotive insulation tasks where both heat and noise reduction are needed.

Vehicle Firewall Installation

Fit it to the engine-side firewall to reduce the amount of engine heat entering the cabin. The aluminium foil reflects radiant heat while the polyester fibre absorbs mechanical noise from the engine.

Floor and Footwell Damping

Cut sections to place under carpets or on metal floor panels to reduce road noise and heat from the exhaust tunnel. The material is flexible enough to follow curved surfaces.

Bonnet and Boot Lid

Attach to the underside of the bonnet or boot lid for additional heat protection and sound damping. The lightweight build does not add significant weight to the panel.

Benefits and Buying Value

This product offers practical upgrades without requiring specialist installation tools.

Reuse and Low Maintenance

Once fixed in place, the mat requires no ongoing care beyond routine engine-bay cleaning. The aluminium foil resists minor oil and moisture splashes, and the polyester fibre does not degrade under normal under-bonnet conditions.

Why Choose This Product

It gives you control over both heat and noise with a single material choice. The three thickness options let you match the insulation level to your specific space and budget. The 50cm x 200cm sheet size provides ample coverage for most passenger vehicle firewall areas.