ASLONG 80 mil 26.9 sqft Car Sound Deadening Mat Butyl Automotive Sound Deadener Audio Noise Insulation and Dampening Material – Key points to check

The ASLONG 80 mil automotive sound deadening mat offers a butyl-based solution for reducing noise and vibration in vehicle interiors. Designed for universal application across car doors, floors, trunks, hoods, and roofs, the material provides broad coverage through a set of 25 sheets, each measuring approximately 9.8 by 15.7 inches. The total surface area covered by this pack is 26.9 square feet, and the mat features a nominal thickness of 80 mil (2 mm), supported by an aluminum foil backing.

Material Composition and Installation

This sound deadening product is constructed using butyl rubber, a material known for its acoustic dampening properties and adhesive flexibility. The inclusion of an aluminum foil surface adds durability and ease of handling during installation. Each sheet is pre-backed with adhesive, allowing for a peel-and-stick application that accommodates curved and irregular surfaces commonly found in vehicle cabins.

Installation requires only basic preparation and trimming. The product’s structure allows users to cut sheets to size with standard tools, then apply them directly to cleaned metal surfaces. This makes the material suitable for both partial and full-area treatment projects targeting road noise, engine vibration, or structural resonance. When choosing a butyl-based sound insulation mat, this format offers a practical balance between thickness and manageability.

Design Fit and Application Scope

With a universal fit approach, the mat is engineered for compatibility across a wide range of vehicle types, including sedans, SUVs, and trucks. Its dimensions and sheet count enable layered coverage in key areas where noise ingress typically occurs. Most commonly, users apply these mats to door panels, floorboards, rear wheel wells, and the trunk lid to intercept noise from tires, engines, and road surfaces.

The aluminum foil exterior also facilitates application beneath hoods and roofs, where moderate heat resistance is required. For users focusing on improved cabin acoustics during audio system upgrades, this material can be placed behind speaker mounts to help reduce panel resonance and improve tonal clarity.

Performance Characteristics

According to manufacturer-provided specifications, the mat’s operational temperature range extends from -49°F to 212°F, supporting use in both hot and cold climates. While no formal STC or NRC ratings are provided, the consistent presence of a dense butyl layer backed with foil contributes to sound energy absorption and vibration control when applied to metal substrates. As a structural dampener, the product is positioned for applications seeking reductions in rattles, buzz, and low-frequency noise transmission.

Customer feedback trends highlight ease of handling and noticeable reductions in ambient cabin noise following installation. The ability to apply the material to interior vehicle panels without advanced tools or adhesives contributes to its suitability for non-professional use. Additionally, its sheet-based format ensures manageable coverage distribution without waste.

Pros

  • 80 mil thickness offers moderate noise dampening capability
  • Self-adhesive butyl backing simplifies installation
  • Aluminum foil layer improves durability and heat resistance
  • Pre-cut sheets make trimming and layout easier
  • Compatible with multiple vehicle zones including doors, trunks, and hoods

Cons

  • No lab-certified acoustic performance data provided
  • Weight may be a consideration for full-vehicle applications
  • Installation tool not included

For vehicle owners seeking a structured approach to interior noise control, this butyl and foil mat provides a direct-to-metal application method with a standardized form factor. Whether targeting rattles or general sound dampening, the material’s flexibility and coverage capacity make it a viable option for DIY upgrades. Explore more about this automotive sound insulation mat to assess its fit within your project requirements.