VibraFlex Beyond SPL: Road Noise Control for Daily Drivers & Vans

When people hear “sound deadener,” they often think of competition audio builds and high-SPL vehicles. But VibraFlex isn’t just for the competition lane—it’s a practical, performance-focused product that makes a huge impact in everyday builds, from daily drivers to full-on van conversions.

Let’s break down how VibraFlex takes road noise and vibration out of the equation, and how to apply it the right way for real-world results.

Why Road Noise Matters

If you drive a cargo van, SUV, or even a lightly insulated sedan, you’ve probably noticed it:

• That constant hum from the highway

• The drone of tires on pavement

• Panel rattle and echo in the cabin

This isn’t just an annoyance. It contributes to driver fatigue, reduces the perceived quality of your vehicle, and makes music or conversation harder to enjoy.

VibraFlex was built to stop that.

When applied with high coverage, VibraFlex acts not only as a vibration damper—it also provides mass loading, much like a traditional mass loaded vinyl (MLV). This not only controls resonance in your panels but also physically blocks airborne sound. For thin sheet metal (think van sidewalls or hatchbacks), the difference is immediate.

Layering for Results: Vibration + Absorption

For best results, pair VibraFlex with an acoustic absorber like foam or acoustic wool. Each layer plays a key role:

• VibraFlex: Bonds directly to the metal to reduce vibration and drum-like resonance.

• Acoustic wool or foam: Applied on top of VibraFlex to absorb interior echo and mid/high frequencies while also reducing heat transfer.

Used together, this combination dramatically cuts road noise inside the cabin.

Real Build Example: Van Sound Deadening

A recent customer applied VibraFlex to a high-roof cargo van build. Here’s what they covered:

• Floor & Wheel Wells: 100% coverage to counter structure-borne noise.

• Side Walls & Doors: 75% coverage, with extra attention to large, flat sections.

• Roof: 50% coverage, followed by a layer of foam to further suppress heat and echo.

Results? A van that feels much quieter and more refined. The customer reported a noticeable drop in road hum, especially on the freeway, with less panel rattle and more clarity from their speakers.

Where to Apply VibraFlex

When working on a daily driver or van build, here’s a basic breakdown of where to apply and how much:

• Floors & Wheel Wells

  • This is where VibraFlex shines.

    • Apply 100% coverage. These are the most vulnerable areas for road and tire noise.

    • VibraFlex is by far the best product for these surfaces due to how it bonds and behaves under pressure.

    • Unlike MLV, which requires glue and overlapping seams that can create uneven surfaces, VibraFlex can be heated and melted together seamlessly, creating a flatter and more stable surface—perfect for laying your actual flooring over.

    • Important: VibraFlex is not a finished flooring material. It should always be covered with carpet, matting, wood, or other protective layers. Leaving it exposed will damage the product over time.

• Doors

  • Cover the flat inner surfaces behind door panels. 75% coverage is typically enough.

• Roof

  • Apply 50% or more across the interior ceiling. Be sure to roll thoroughly—especially overhead—to eliminate air bubbles and ensure adhesion. Follow with foam or insulation to reduce echo and heat.

• Cargo Area Panels & Hatchbacks

  • Target large, flat metal sections. Even partial coverage here makes a big difference in blocking outside sound and rear tire noise.

Essential Application Technique

Proper installation of VibraFlex is critical for optimal performance. Here’s how to do it right:

• Heat Activation: Use a heat gun or small torch to warm the material before applying. This activates the adhesive and allows edges to melt together where needed.

• Rolling is Mandatory: A roller is not optional. Pressing the material firmly into place eliminates air pockets and ensures full panel contact.

• No Air Bubbles: Especially on vertical surfaces or roofs, air bubbles compromise adhesion and performance. Roll thoroughly, edge to edge.

Final Word: It’s All About Application

VibraFlex is an incredible product—but it performs best when applied with care. Clean your surfaces. Apply heat. Roll it down. Eliminate air bubbles. And make sure it’s covered with a top layer when used on floors.

Whether you’re building a stealth camper or just want a quieter commute, VibraFlex delivers results far beyond the competition lane. Shop www.PurePressureAudio.com for all of your VibraFlex needs!