Dynamat

About Dynamat: The Original Name in Automotive Sound Deadening

Founded in 1989 and headquartered in Fairfield, Ohio, Dynamat has spent more than three decades earning its reputation as the most trusted brand in noise and vibration control. Whether you're building a show car, upgrading your daily driver, outfitting a marine vessel, or quieting an RV, Dynamat's American-made products have set the benchmark that competitors still measure themselves against.

At the heart of what Dynamat does is a deceptively simple but highly engineered principle: convert mechanical vibration into silent thermal energy. Dynamat sound dampening sheets accomplish this through a process called constrained-layer damping — a viscoelastic butyl compound bonded beneath a rigid aluminum constraining layer. When a panel flexes or resonates, the damping layer is forced to deform, absorbing that energy as low-grade heat rather than transmitting it as noise into the cabin. The result is a dramatically quieter, more refined driving experience.

Dynamat's flagship product line, Dynamat Xtreme, has been manufactured in the USA since the company's founding and remains the reference point for automotive sound deadening material. For projects demanding even greater performance, Dynamat ProX delivers a heavier butyl core and a thicker 5-mil aluminum constraining layer, with independent third-party testing confirming its class-leading damping performance. Beyond panel damping, Dynaliner offers what the brand describes as the highest heat-blocking properties available in a single-layer synthetic foam, while the Hoodliner provides impressive heat reflection under the hood — a benefit equally at home in a street rod or a boat engine compartment.

What separates Dynamat from the competition isn't just material science — it's the breadth of the system. A complete Dynamat installation follows a layered approach: damping sheets eliminate structure-borne vibration at the panel level, thermal and acoustic barriers address airborne sound waves and radiant heat, and purpose-built installation tools ensure every sheet bonds cleanly without air bubbles or lifted edges. This systems-level thinking is why Dynamat has been the choice of professional automotive installers, audiophiles, custom car builders, and OEM-level integrators around the world.

Dynamat products cover an extensive range of vehicle areas — doors, floor pans, roof panels, trunk floors, firewalls, wheel wells, and even generator boxes in RVs. Kits are sized for specific scopes of work, from a single-door upgrade to a full-vehicle build, so installers can plan coverage precisely and avoid wasted material. And because all products are made in the United States, quality consistency has been a brand hallmark since day one.

If you're serious about quieting road noise, improving in-car audio clarity, or managing cabin heat, Dynamat's lineup offers a solution engineered to last for the life of your vehicle — no reapplication, no degradation in high-heat environments, and no compromise.