CANOPUS Sound Deadening Mat 50 mil 36 sqft - Heavy Duty Noise Control

In this review of the CANOPUS Sound Deadening Mat, the bottom line is straightforward: this pack is for car owners and installers who need a durable, heavy-duty butyl mat that noticeably reduces road noise and vibration. The reviewer found the 50 mil thickness delivers the most tangible reduction in rattles and ambient sound among similar materials, and the 18-sheet pack covers multiple panels for door, trunk, floor or ceiling installation. It is presented as a practical, long-lasting option for audio upgrades or general cabin quieting.

Key Features

• 50 mil thickness: Provides a substantial mass layer that blocks and absorbs road noise and reduces panel vibration for clearer cabin sound.
• Durable butyl construction: The butyl composition resists breakdown so the mat remains effective over time after installation.
• Self-adhesive backing: Sticks firmly to cleaned metal and composite surfaces to avoid peeling and maintain long-term contact.
• Pack of 18 sheets: Offers enough coverage and multiple pieces for cutting to fit doors, trunk areas, floors and ceilings without excessive seams.
• Mess-free installation: Designed for clean application when panels are prepped and rolled, reducing installation time and cleanup.

Who It's For

The CANOPUS mat is best for hobbyist installers, car audio enthusiasts and DIY mechanics who want a noticeable reduction in cabin noise and vibration without specialist adhesives or complex materials. It suits vehicles where added mass and damping around door skins, trunk lids or floor pans will improve audio clarity or reduce rattles.

Those who need an ultra-thin or decorative finish for interior trim, or who prefer liquid-applied soundproofing, should look elsewhere; this product is focused on dense, butyl-based damping and adds measurable mass rather than a cosmetically hidden layer.

Pros & Cons

Pros

• High effectiveness at reducing vibration and ambient noise due to the 50 mil thickness.
• Good adhesive performance that makes installation straightforward when surfaces are cleaned.
• Durable butyl material that feels substantial and not flimsy once applied.
• Multiple sheets in the pack simplify coverage for several panels or multiple projects.

Cons

• Thicker sheets add weight and may be more difficult to fit in tight trim areas compared with thinner alternatives.
• Requires careful surface prep and a roller for best results, so installation is not entirely tool-free.

Specifications

Brand	CANOPUS
Material	Butyl
Thickness	50 mil
Coverage	36 sqft (pack of 18 sheets)
Color	Black
Application	Self-adhesive car trunk, door, floor, ceiling

Our Verdict

The CANOPUS 50 mil sound deadening mat is a solid, value-oriented choice for anyone wanting measurable noise and vibration reduction during a car audio upgrade or cabin quieting project. It pairs a heavy-duty butyl compound with reliable adhesion and enough sheets to cover multiple panels, making it worth choosing when mass and damping matter more than absolute thickness economy.

Frequently Asked Questions

Will this fit inside door panels?
Yes, the pack contains multiple sheets that can be cut to size for door skins, though the 50 mil thickness is thicker than some alternatives so careful trimming is needed for tight spaces.

Do I need special tools to install?
Basic tools suffice: a sharp utility knife and a roller are recommended for clean, long-lasting adhesion and to remove air pockets.

Is the adhesive permanent?
The self-adhesive butyl is designed for long-term bonding when applied to a clean surface; thorough surface prep improves permanence.