SGM Black Premium Car Sound Deadening Mat 80 mil - Heavy Duty Noise

In this review of the SGM Black 80 mil sound deadening mat, the bottom line is simple: this is a heavy duty, easy to install solution for drivers who want to reduce road noise and metal vibration without complicated tools. The reviewer found it best suited for anyone doing a DIY interior rebuild or upgrading car audio, since the material's thick 80 mil butyl core and foil face deliver obvious reduction in rattles and ambient noise while also offering thermal protection. Installation follows a straightforward peel-and-place method and the adhesion holds well even in hot conditions.

Key Features

• 80 mil thickness: The 2mm material provides strong vibration damping to noticeably reduce rattles and improve cabin acoustics.
• Butyl adhesive: A pliable, environmentally friendlier mastic clings to metal and plastic surfaces to stop ambient noise and remain stuck in heat.
• Thermal foil layer: The foil face acts as a radiant barrier that helps insulate the cabin from road heat and cold as well as sound.
• Wide temperature range: Rated from -49 F to 212 F so it performs in cold winters and hot summers without losing adhesion.
• Peel-and-place installation: Sheets are easy to cut, stick and roll smooth, making coverage of floors, doors, roof and trunk straightforward.
• Large coverage area: The 36 sq ft total gives enough material to treat multiple interior panels for consistent dampening.

Who It's For

This mat is ideal for car owners doing a DIY audio or interior upgrade who need a high-performance, long-lasting sound deadener. It suits installers who want thick, durable material that reduces vibration across floors, doors, trunks and wheel wells without requiring professional tools.

Less suitable are buyers who only need minor touch-ups or weight-sensitive restorations; 80 mil material is heavier and more substantial than thin 50 mil alternatives, so those looking for the lightest option or minimal added mass may prefer thinner sheets.

Pros & Cons

Pros

• Thick 80 mil construction delivers clear reductions in road noise and panel vibration.
• Strong butyl adhesion keeps sheets stuck to metal and plastic, with reports of holding through hot summers.
• Foil surface adds thermal insulation as well as sound dampening for dual benefit.
• 36 sq ft total coverage and 34 sheets makes it easy to cover multiple areas without multiple purchases.

Cons

• At 80 mil the material is heavier and bulkier than thinner options, which may matter for weight-conscious projects.
• Installation benefits from a roller to remove bubbles and ensure full contact; without one results may be uneven.

Specifications

Brand	SGM
Nominal thickness	80 mil (2mm)
Total coverage	36 sq ft (3.4 sqm)
Number of sheets	34
Nominal sheet size	15.7 x 9.8 in
Temperature range	-49 F to 212 F

Our Verdict

SGM Black 80 mil is a sensible purchase for DIYers and installers who want a substantial, reliable sound deadener that also adds thermal insulation. The strong adhesion and wide coverage make it good value for projects that target multiple interior panels, and the thicker construction delivers noticeably better damping than thinner mats.

Frequently Asked Questions

How do you install the sheets?
Cut to size, peel the protective backing and press onto clean metal, then roll out bubbles with a roller for full adhesion.

Will it withstand hot climates?
Yes, the product is rated to 212 F and customers report it remains stuck through hot summer conditions.

How much area does a package cover?
The package provides 36 sq ft of coverage, supplied as 34 sheets of roughly 15.7 x 9.8 in each.