CANOPUS Sound Deadening Mat 50 mil 36 sqft - Effective Noise Control

In this review of the CANOPUS Sound Deadening Mat, the bottom line is simple: this pack is for DIYers and installers who want a robust, easy-to-fit material to cut cabin and trunk noise without complex tools. The reviewer found the 50 mil thickness and butyl construction deliver a noticeable reduction in vibration and ambient sound when applied correctly, and the pack of 18 sheets provides good coverage for doors, floor pans and a trunk or two. Installation is straightforward on clean panels and the product feels built to last rather than a thin, temporary layer.

Key Features

• 50 mil thickness: Provides substantial mass to reduce road and engine noise without adding excessive bulk to panels.
• Durable butyl material: Resists cracking and outlasts many thin alternatives for longer lasting sound control.
• Self-adhesive backing: Sticks firmly to metal panels for effective vibration damping after a proper surface prep.
• Pack of 18 sheets: Supplies enough 36 sq ft of coverage to treat doors, trunk, floor or roof sections with minimal seams.
• Easy to cut and fit: Sheets can be trimmed with scissors or a razor to match contours and tight spaces around brackets and welds.
• Clean application: When applied to a clean surface and rolled, the sheets adhere without messy residue or dripping adhesives.

Who It's For

This mat is aimed at car owners doing interior soundproofing themselves and installers who need a reliable butyl layer for doors, trunks and floors; it is particularly useful for vehicles with hollow panels or noticeable vibration. People upgrading audio systems who want reduced panel resonance and better bass clarity will also see a clear benefit.

Those looking for an ultra-thin, decorative liner or a product that doubles as thermal insulation only should look elsewhere, since this is primarily a heavy sound- and vibration-damping material rather than a decorative trim or primary heat shield.

Pros & Cons

Pros

• Effective reduction in road and engine noise thanks to the 50 mil thickness and butyl composition.
• Good value for coverage with 18 pre-cut sheets totaling 36 sq ft, reducing seams during installation.
• Adheres well and is easy to cut, making door panels and trunk contours simple to treat.
• Durable construction that should remain effective over time without frequent replacement.

Cons

• Requires clean surfaces and a roller for best adhesion, so prep time is necessary for optimal results.
• Not intended as a decorative or primary thermal barrier, so additional materials may be needed for those purposes.

Specifications

Brand	CANOPUS
Material	Butyl
Thickness	50 mil
Coverage	36 sq ft (18 sheets)
Application	Self-adhesive sheets for car doors, trunk, floor and ceiling
Color / Finish	Silver

Our Verdict

The CANOPUS 50 mil sound deadening mat is a practical choice for anyone who wants measurable reductions in noise and vibration without complicated installation. It offers durable butyl construction, easy cutting and a generous sheet count that together represent good value for DIYers and installers focused on acoustic improvement.

Frequently Asked Questions

Will this stick to bare metal?
Yes; the self-adhesive backing bonds well to clean, dry metal panels, but surfaces should be degreased and free of rust or paint flakes for best adhesion.

Is this suitable for doors and trunks?
Yes; the pack contains enough sheets and the thickness is ideal for damping door skins, trunk lids and floor panels to reduce resonance.

Can it be cut to fit tight areas?
Yes; customers report it trims easily with scissors or a razor for custom fits around brackets and seams.