Upgrade your car, van or campervan with this 2-in-1 sound deadening and insulation kit, combining heavy-duty PeaceMAT™ XR 2mm butyl sound deadening with 3mm self-adhesive closed cell foam insulation.

The two materials work together as a layered automotive insulation system. PeaceMAT XR is installed first directly onto the vehicle metal to reduce vibration, rattles and panel resonance. The 3mm closed cell foam is then installed as the second layer to provide additional acoustic insulation, thermal protection and moisture resistance. This is also the layer order recommended elsewhere on the Car Insulation UK site. Car Insulation UK

What’s Included?

PeaceMAT™ XR 2mm Sound Deadening

• Quantity: 10 sheets
• Heavy automotive-grade butyl construction
• Embossed aluminium surface
• Self-adhesive
• Helps reduce road noise, vibration, rattles and panel resonance
• Apply directly to the vehicle's metal panels

3mm Closed Cell Foam Insulation

• Quantity: 1m × 2m roll (2m²)
• Thickness: 3mm
• Black closed cell foam
• Self-adhesive with brown release backing
• Water-resistant and non-absorbent
• Provides additional thermal and acoustic insulation
• Flexible and easy to cut and shape

Why Use Both Layers?

PeaceMAT XR adds mass and damping to thin vehicle panels, helping control the vibration and resonance responsible for unwanted road noise and rattles.

The 3mm closed cell foam is then installed over the treated area, providing a second insulating layer to help reduce heat transfer, moisture and additional unwanted noise.

Together, they provide a practical sound deadening + thermal insulation system without taking up excessive space.

Ideal For

Cars, vans, campervans, motorhomes, 4x4s and vehicle conversions. Suitable for doors, side panels, roofs, floors, wheel arches, boot areas, bulkheads and other interior metal panels. PeaceMAT XR is already recommended for these vehicle areas on your existing listings. Car Insulation UK

How to Install

Layer 1 – PeaceMAT XR: Clean and degrease the metal surface. Cut the PeaceMAT XR to fit, remove the backing and apply directly to the metal. Press firmly into position, preferably using an application roller.

Layer 2 – 3mm Closed Cell Foam: Measure and cut the foam to the required shape. Remove the brown release paper and apply the black foam directly over the PeaceMAT XR, pressing firmly across the surface.

No additional adhesive is required for either layer.