Sky High Car Audio 200Mil Sound Deadener ( Single Sheet )

Step up to serious noise and heat control with this 200 mil (0.200” / 5.5 mm) aluminum-backed sound deadening mat. Built for extreme builds and problem areas, this thicker mat soaks up panel vibration, reduces road noise, and helps keep cabin temps in check—perfect for doors, floors, roofs, trunk tubs, and anywhere your system tries to shake the car apart.

Key Features

• Heavy-Duty Thickness
  
• 200 mil nominal thickness (0.200” / 5.5 mm total) delivers extra damping for high-output systems and large, resonant panels.
• Aluminum Top Layer
  
• 6 mil aluminum layer cuts down on both sound transfer and radiant heat, helping your interior stay quieter and cooler.
• Super Sticky Butyl Adhesive
  
• High-tack butyl rubber backing with aluminum ensures a strong, long-lasting bond when surfaces are properly prepped and heated.
• Diamond-Dimpled for Easy Shaping
  
• Dimpled aluminum in a diamond pattern makes it easier to conform around hard corners, curves, and complex panels for a cleaner install.
• Clean, Custom Look
  
• Thick black foil with a white collage of SHCA logos for a professional finish in exposed or show-ready areas.
• Convenient Sheet Size
  
• 23.5” x 11” sheets are easy to maneuver into doors, quarter panels, and tight spots while keeping waste to a minimum.
• High Density
  
• Just under 1 pound per square foot, giving you serious vibration control without adding unnecessary weight.
• Pack Sizes for Any Build
  
• Sold in variety packs from 16.5 square feet up to 160 square feet—ideal for everything from a small cabin to a full demo or competition vehicle.

Installation Tips

For best results, thoroughly clean all metal surfaces to remove dust, rust, grease, and loose material. Heat both the metal and the sound deadening mat before installation to improve flexibility and maximize adhesion. Press firmly across the entire sheet, working out air pockets and ensuring full contact so your 200mil mat performs at its best for years to come.