Dynamat Xtreme Sound Deadening Sheet 18"x32" (4 sq ft) — Peel-&-Stick Noise & Vibration Dampener

Dynamat Xtreme Sound Deadening Single Sheet is a peel-and-stick automotive insulation panel that reduces road noise, vibration and heat across doors, floors, hoods or trunks.

Built for hobbyists and pro installers alike, this 18" x 32" single-sheet Hex Pack delivers 4 square feet of the brand’s proven butyl-based damping material. Thin and flexible, the sheet conforms to vehicle surfaces and stays in place with a high-tack adhesive, helping quiet rides and improve speaker performance without major fabrication. Manufactured in the USA, Dynamat Xtreme is designed to add acoustic control and thermal barrier properties wherever excess noise and vibration are a problem.

How will this sheet change cabin noise and speaker clarity?

Applying the Dynamat Xtreme sheet to metal panels reduces resonance and rattles that muddy sound. That means lower road and engine noise reaching the cabin and tighter, cleaner bass from loudspeakers mounted on doors or trunks.

• Targets panel vibration to cut rattles and ringing.
• Improves speaker output by controlling unwanted resonances.
• Reduces airborne and structure-borne noise for clearer audio.

Where can I install this product on my vehicle?

The sheet is versatile enough for doors, floor pans, trunk lids, hood undersides and interior panels. Its thin profile lets it fit behind trim and inside tight cavities while still delivering measurable damping benefits.

• Doors — mount behind panels to stop buzz and improve speaker sound.
• Floors — lay under carpets to reduce road and tire noise.
• Trunk and hood — place on inner surfaces to block resonance and heat transfer.

How easy is installation for a DIYer?

• Cut with utility knife or scissors to match contours.
• Peel backing and press; use a roller for strong, even bond.
• Thin, flexible layer fits tight corners and curved panels.

What are the material specifics and product size?

This Hex Pack supplies one 18" x 32" sheet (4 sq ft) of Dynamat Xtreme, built from a butyl rubber damping layer with an aluminum outer face for handling and thermal resistance. The sheet balances performance with a minimal added thickness so it won’t interfere with trim fitment or panel clearance.

• Dimensions: 18" x 32" — covers 4 square feet per sheet.
• Composition: high-tack butyl damping layer with foil facing.
• Made in the USA by Dynamat at their Ohio facility.

Who is this for? Enthusiasts upgrading sound systems, car restorers, and DIY mechanics who want a simple way to cut noise and improve acoustic performance will find this sheet ideal. It also suits professionals seeking a reliable sheet for targeted dampening jobs where flexibility and strong adhesion matter. If you need a compact, easy-to-install solution to reduce vibration, heat transfer and unwanted cabin noise, this Dynamat Xtreme single-sheet Hex Pack is a practical, proven option.