CANOPUS Sound Deadening Mat 50 mil 18 sqft - High-Performance Car

In this review the CANOPUS Sound Deadening Mat stands out as a practical upgrade for anyone wanting quieter vehicle interiors without complicated work. Designed as a 50 mil self-adhesive butyl mat in a pack of 9 sheets, the product's single biggest strength is its combination of substantial thickness and durable butyl composition that meaningfully reduces vibration and ambient noise when applied correctly. For installers who roll the material down on clean panels, the difference in cabin and trunk noise is immediately noticeable.

Key Features

• 50 mil thickness: Provides heavy-duty damping that blocks road and engine noise better than thinner sheets.
• Durable butyl construction: Resists tearing and stays effective over time for long-lasting sound control.
• Self-adhesive sheets: Each sheet sticks directly to metal panels for a secure fit without additional adhesives.
• Pack of 9 sheets: Offers 18 sq ft total coverage to treat doors, trunk, floor and ceiling and reduce vibrations.
• Easy to cut and install: Sheets are straightforward to trim to shape and conform when rolled into place.
• Clean installation when prepped: Bonds cleanly to prepared surfaces to avoid mess and ensure correct adhesion.

Who It's For

The CANOPUS mat is ideal for car audio enthusiasts, DIY installers and anyone looking to reduce road, engine and trunk noise without replacing panels. It is especially useful for vehicles with audible panel vibration, aftermarket subwoofers, or owners seeking clearer in-cabin audio by reducing resonance.

Those looking for an ultra-thin, lightweight sound treatment for fine detail work, or installers who cannot access and clean mounting surfaces easily, might prefer a different thinner or peel-and-stick product. Professional shops that require specific branded adhesives or custom-cut kits should compare fitment options first.

Pros & Cons

Pros

• Thick 50 mil material delivers noticeable vibration reduction and improved bass response when applied to panels.
• Butyl construction feels durable and not flimsy, so it holds up during trimming and long-term use.
• Self-adhesive sheets adhere well and are easy to trim, which simplifies DIY installation.
• Pack size gives enough coverage for multiple panels or a thorough trunk and door treatment.

Cons

• Requires clean, prepared surfaces and a roller for best adhesion, which adds prep work to installation.
• At 50 mil thickness the sheets are bulky in tight or curved cavities and may need careful shaping to fit.

Specifications

Material	Butyl
Thickness	50 mil
Coverage	18 sq ft (pack of 9 sheets)
Color	Black
Adhesive	Self-adhesive backing
Intended use	Car trunk, door, floor and ceiling panels

Our Verdict

The CANOPUS 50 mil sound deadening mat is a solid value for DIY installers and audio-minded drivers who want substantial noise and vibration reduction without professional installation. Its durable butyl make and generous sheet count deliver reliable performance across doors, trunks and floors, making it a worthwhile upgrade for those prepared to clean and roll the sheets into place.

Frequently Asked Questions

How much area does one pack cover?
One pack covers approximately 18 sq ft using all 9 sheets.

Is this suitable for doors and trunk panels?
Yes, the product is designed for use on door, trunk, floor and ceiling panels to reduce noise and vibration.

Do I need extra adhesive or tools?
The sheets are self-adhesive but a clean surface and a roller are recommended for best adhesion and a mess-free result.