Sky High Car Audio 80mil Sound Deadener – License Plate Sheet

Sky High Car Audio 80mil Sound Deadener – License Plate Sheet

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The Sky High Car Audio 80mil License Plate Sound Deadener is a simple, high-impact way to kill that annoying plate buzz and clean up the back of your vehicle. Cut to the exact size of a standard license plate, this sheet is designed to mount directly behind the tag and dramatically reduce vibration, rattles, and noise from your subwoofers.

Built with a nominal thickness of 80 mil (.080” / ~2 mm) and a 6 mil aluminum layer, this deadener helps with both sound dampening and heat reduction on the mounting surface. A super sticky butyl rubber adhesive ensures the mat stays put once installed, while the thick black foil with metallic white/silver Sky High logos gives it a clean, branded look if it’s ever visible during your install.

At just under 1 pound per square foot, this 80mil plate sheet adds density right where you need it most—on the thin metal area behind the license plate that loves to buzz and ring when the bass hits. Use it on daily builds, demo cars, or any system where the plate is the loudest rattle on the vehicle.

Key Features – 80mil License Plate Sound Deadener

• Thickness: 80 mil nominal (.080” / ~2 mm total thickness)
• Construction:
  
• 6 mil aluminum layer for sound dampening and heat reduction
• Super sticky butyl rubber adhesive backed with aluminum
• Finish: Thick black foil with metallic white/silver Sky High logos
• Sheet Size: Cut to the exact size of a license plate
• Weight: Just under 1 lb per square foot
• Designed specifically for license plate area vibration control

Best Uses

• Behind rear license plates to eliminate rattles and buzz
• On thin metal panels near the plate or hatch area
• As a targeted deadening solution when full mat coverage isn’t needed

Installation Tips

• Always thoroughly clean the mounting surface to remove dust, grease, and debris
• For best adhesion, warm both the metal and the sound deadener before installation (especially in cold weather)
• Firmly roll or press the mat to remove air pockets and ensure full contact

If your system sounds great but your license plate is screaming louder than your music, this 80mil Sky High Car Audio plate deadener is the quick, professional fix.