D-Mat Insulation 60in x 70in

The Design Engineering D-Mat Insulation 60in x 70in heat and sound barrier is a professional-grade polymer blend thermal mat designed to reduce engine bay noise, underbody vibration, and radiant heat in high-performance and street vehicles. At 12mm thickness, this 60 x 70-inch sheet provides substantial coverage for floor pans, trunk areas, door panels, and firewall applications where thermal management and acoustic dampening are priorities.

The polymer blend construction delivers measurable sound deadening while managing under-hood temperatures that can affect component longevity and cabin comfort. At 2.83 lbs for the full 60 x 70-inch sheet, the material is lightweight enough for easy installation without requiring structural reinforcement, yet dense enough to effectively interrupt vibration transmission. The 12mm profile balances sound absorption with practical fitment in confined spaces—floors, firewalls, and enclosed cavities where thinner materials would compromise performance.

This thermal and acoustic barrier is ideal for street car builders, weekend track enthusiasts, and anyone upgrading vehicle comfort in high-vibration or high-heat environments. Muscle cars, track vehicles, and custom builds benefit from reduced transmitted noise and lower cabin temperatures, especially in applications where factory insulation is minimal or degraded. The large 60 x 70-inch single sheet allows flexible layout planning and reduces waste compared to smaller sections.

Design Engineering is a recognized manufacturer in the automotive thermal and acoustic category, with D-Mat being a mainstream solution for both OEM restoration and performance builds. When paired with complementary dampening materials, a single D-Mat Insulation sheet provides the foundation for a comprehensive noise and heat reduction strategy in custom vehicle projects.