KILMAT 80 Mil (2mm) Car Sound Deadening Mat – 36 Sqft (3.4 m²) for DIY Auto Insulation

Overview

KILMAT 80 Mil is a self-adhesive, two-layer sound deadening mat designed for automotive DIY upgrades. This 2 mm thick layer combines a robust butyl core with a durable foil, creating a solid foundation for reducing cabin resonance and road noise. With a total coverage of 36 sq ft (3.4 m²), it provides ample material to tackle multiple panels such as doors, floors, and the trunk, making it a versatile option for enthusiasts who value a calmer interior environment.

The product’s 80 mil thickness is offered as a 1.5x upgrade over prior versions, suggesting a higher potential insulation effect per sheet while remaining feasible for home installation. The weight of approximately 0.5 lbs per square foot helps keep the overall load manageable on typical vehicle panels.

Why choose 80 mil thickness

The extra mass from the thicker layer helps dampen vibrations and reduces panel flex, contributing to a quieter ride. The manufacturer notes that the thicker material can deliver more performance, particularly when applied thoughtfully across key surfaces.

Key features

• Very sticky self-adhesive butyl and foil construction supports solid adhesion and durable decoupling.
• Increased thickness may translate to stronger insulation potential when applied across multiple panels.
• Lightweight design at about 0.5 lbs per sq ft, facilitating easier handling during install.
• Practical installation indicator: embossed foil should be rolled out until flat for a reliable, professional finish.
• Sheeted, cuttable format enables precise fitting on curved doors, floors, and trunk areas.

Real-world use cases

• Attach to doors to reduce cabin rattles and improve overall ride feel.
• Apply to floors and wheel wells for a quieter highway experience and less surface vibration.
• Use in the trunk or cargo area to dampen vibrations from road surfaces and amplified bass from aftermarket systems.

Installation tips

• Prepare a clean, dry surface; remove dust, oils, and debris for stronger adhesion.
• Peel away the backing, press the sheet into place, and roll from the center outward to flatten the foil.
• Use the embossed indicator as a quick check to ensure the material sits flat and secure.

Specs at a glance

• Thickness: 80 mil (approximately 2 mm)
• Coverage: 36 sq ft (3.4 m²)
• Weight: ~0.5 lbs per sq ft
• Material: Butyl core with aluminum foil
• Application: Automotive sound deadening and vibration damping