Comfort Mats ATOM BOMB (4.2mm) Vibration Deadening Mat
The Comfort Mat ATOM BOMB 4.2mm is an advanced multi-layer bitumen-mastic vibration deadening solution engineered for professional-grade sound insulation. Designed for high-vibration environments, its modified elastomer mastic formula delivers outstanding mechanical damping, exceptional adhesion, and reliable performance across a wide temperature range — making it the go-to first-layer deadener for serious car audio builds.
Key Features
- Multi-Layer Construction: Advanced bitumen-mastic composition with high rigidity for maximum vibration damping efficiency
- Modified Elastomer Mastic: Delivers a high mechanical loss factor of 0.6 for superior noise reduction
- Strong Adhesion: 11 N/cm bonding strength ensures a secure, long-lasting installation
- Waterproof: Fully resistant to moisture, making it ideal for floor, arch, and firewall applications
- Wide Application Range: Perfect for interior and trunk floors, engine firewalls, and wheel arches
- Convenient Pack Size: Comes in a pack of 5 sheets (500 x 700mm each) for efficient coverage
- Heavy-Duty Foil: 100-micron foil layer adds structural integrity and durability
Technical Specifications
- Thickness: 4.2 mm
- Sheet Size: 500 x 700 mm
- Foil Thickness: 100 microns
- Mechanical Loss Factor: 0.6
- Sheet Weight: 2.4 kg
- Weight: 6.68 kg/m²
- Adhesion: 11 N/cm
- Waterproof: Yes
- Layer: 1st layer application
- Pack Contents: 5 sheets
- EAN: 4640107332510
Note: Material must be heated to 50°C before installation to ensure optimal adhesion and performance. Upgrade your vehicle’s acoustics with the Comfort Mat ATOM BOMB — where professional-grade damping meets real-world durability.

















