Car owners often ask us about the differences between B-Quiet Sound Deadening and Dynamat. Both brands are well known in the automotive soundproofing world, but there are key differences in materials, pricing, and installation that can make one a better choice for your project.
Let’s take a closer look.
How the Sound Deadeners are made
Both B-Quiet and Dynamat feature butyl based products. B-Quit Extreme is made with a Butyl rubber asphalt mix with a foil alloy outer skin and a sticky backing that will adhere to almost anything. B-Quiet Ultimate is a 100% butyl rubber also with a foil outer alloy and sticky backing that creates a material that works extremely well at stopping noise and vibrations in your automobile. Dynamat offers the exact same mix and has a foil outer layer followed by sticky backing.
| Product | Material Composition | Outer Layer | Adhesive Type |
|---|---|---|---|
| B-Quiet Extreme | Butyl rubber + asphalt blend | Foil alloy | Pressure-sensitive |
| B-Quiet Ultimate | 100% pure butyl rubber | Foil alloy | High-strength adhesive |
| Dynamat Xtreme | 100% butyl rubber | Foil alloy | Pressure-sensitive |
What this means:
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B-Quiet Extreme offers an affordable balance between performance and cost, great for doors, floors, and trunks.
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B-Quiet Ultimate matches Dynamat’s pure-butyl construction but at a significantly lower price.
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All three options perform exceptionally well at reducing vibration, road noise, and panel resonance.
Rolls vs. Sheets: Installation and Coverage
While both companies use similar manufacturing techniques, their product formats differ and that can make installation easier or harder.
B-Quiet Sound Deadening comes in convenient rolls of 12 sq ft or 50 sq ft.
- Easier to handle and cut to custom sizes.
- Fewer seams for a cleaner, more professional finish.
- Ideal for covering large surfaces like van floors, roofs, or trunks.
Dynamat, on the other hand, is typically sold in pre-cut sheets.
- Requires aligning and overlapping multiple pieces.
- More seams and potential for small gaps.
- Often slower to install on larger areas.
If you’re soundproofing a full vehicle, especially a van or truck, B-Quiet’s roll format saves time and results in smoother coverage.
Updated Price Comparison: B-Quiet vs Dynamat (2025)
| Product | Coverage | Retail Price (USD) | Cost per Sq Ft | Where to Buy |
|---|---|---|---|---|
| B-Quiet Extreme | 50 sq ft roll | $142.99 (sale $128.69) | ≈ $2.86 / sq ft | B-Quiet Extreme |
| B-Quiet Ultimate | 50 sq ft roll | $184.49 (sale $166.04) | ≈ $3.29 / sq ft | B-Quiet Ultimate |
| Dynamat Xtreme Bulk Pak | 36 sq ft (9 sheets) | $239.95 | ≈ $6.67 / sq ft | Crutchfield |
| Dynamat Xtreme Trunk Kit | 20 sq ft | $156.95 | ≈ $7.85 / sq ft | Crutchfield |
B-Quiet Sound Deadening is affordably priced as we are the manufacturer. With almost double the cost of Dynamat, it begs the question why would you pay more for the same thing?
Performance and Real-World Results
Both materials perform exceptionally well in reducing engine noise, road vibration, and resonance from panels.
However, customer feedback often highlights a few B-Quiet advantages:
- Easier to cut and apply due to roll format.
- Equal or better adhesion at high temperatures.
- Noticeable improvement in cabin quietness, often described as a “luxury-car feel.”
For those doing camper van builds, truck restorations, or daily-driver upgrades, B-Quiet delivers proven long-term durability and quieter rides at a lower total cost.
Final Thoughts
Both B-Quiet and Dynamat are respected brands in automotive soundproofing, but B-Quiet’s factory pricing, flexible rolls, and easy installation make it a smarter choice for most drivers and DIY builders.
You’ll get the same performance, less effort, and more savings, all backed by over 20 years of experience in automotive sound-deadening innovation.
