GOSCHE 197mil 36 sqft Sound Deadening Mat - Thermal & Noise Shield

In this review the GOSCHE 197mil sound deadening mat is evaluated for drivers and DIY installers who want to reduce road noise and heat transfer in their cars. The bottom line: this 5mm PE foam with aluminum finish is most useful to people fitting insulation to hoods, doors, roofs or trunks because it combines a lightweight closed-cell foam for thermal blocking with a sticky backing that makes installation straightforward. The pack covers 36 sq ft across thirty-four sheets sized for easy splicing and trim, so it is practical for whole-panel work rather than tiny spot repairs.

Key Features

• Total coverage: The 36 sq ft stack supplies enough material to treat multiple panels or a full small car interior section without piecing together tiny scraps.
• Sheet size and count: Thirty-four 15.7 x 9.8 in sheets are a manageable size for cutting and shaping to hood, door and trunk contours.
• Thickness and construction: At 197 mil (5 mm) the PE foam core with an aluminum finish offers both sound dampening and a thermal barrier against engine and summer heat.
• Working temperature: Rated -40C to +149C, the mat tolerates wide temperature swings, making it suitable for vehicles used in extreme climates.
• Self-adhesive backing: The factory-applied adhesive simplifies installation on bare or painted metal, letting installers stick sheets in place without additional glue.
• Waterproof and compressible: Closed-cell foam resists moisture and compresses for a smoother fit at seams and around bends.

Who It's For

This product is a good match for car owners and independent installers who want an affordable way to reduce cabin noise and heat transfer without heavy tools. It is particularly well suited to people working on hood liners, door skins, trunks or roof panels where medium-thickness insulation and a reflective face help with both vibration and temperature control.

It is less appropriate for someone seeking extreme mass-loaded deadening for professional audio builds where very heavy bitumen sheets are preferred, or for tiny spot-fix jobs where a single custom-cut piece would be cheaper. Also, users expecting permanent, maintenance-free results should note some customers question long-term durability on high-vibration panels.

Pros & Cons

Pros

• Effective at reducing road noise and rattles on bare or painted metal as reported by multiple users.
• Self-adhesive sheets are easy to cut and apply, speeding DIY installations.
• Lightweight closed-cell foam provides thermal insulation to help keep engine heat out and cabin temperature more stable.

Cons

• Some buyers raised mild concerns about long-term durability on high-vibration panels; heavy-duty applications may require additional reinforcement.

Specifications

Brand	GOSCHE
Total coverage area	36 sq ft
Sheet nominal size	15.7 x 9.8 in
Number of sheets	34
Nominal thickness	197 mil (5 mm)
Material	PE foam with aluminum finish
Working temperature range	-40C to +149C

Our Verdict

The GOSCHE 197mil sound deadening mat is a practical, cost-effective choice for enthusiasts and DIYers who want to reduce road noise and heat transfer across multiple panels. It balances ease of installation with a useful thermal barrier, making it good value for treating doors, hoods and trunks, though installers seeking extreme long-term durability on high-vibration areas may want to add reinforcement.

Frequently Asked Questions

Can this be used on painted metal?
Yes; customers note it adheres well to bare or painted metal, but surfaces should be clean and dry for best adhesion.

Is the material fire resistant?
The product has an aluminum finish and is rated for temperatures up to +149C, but it is not promoted as a flameproof material; follow vehicle safety guidance when installing near exhaust components.

How easy is it to cut and shape?
The sheets are easy to trim with a utility knife and compress to fit curved panels, making them suitable for custom installations.