{"product_id":"voisen-sound-deadening-mat-4mm-36sqft-thermal-noise-blocker","title":"VOISEN Sound Deadening Mat 4mm 36sqft - Thermal Noise Blocker","description":"\u003cp\u003eOur review of the VOISEN Sound Deadening Material finds it best suited for DIYers and vehicle owners looking to reduce road noise and heat transfer without major modification. The single roll covers 36 ft2 and uses a 4mm high density closed cell foam that works as a practical soundproofing layer and heat barrier; the biggest reason to buy is its combination of thermal blocking and flexible installation that adapts to doors, hoods, trunks and firewalls.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e4mm closed cell foam:\u003c\/strong\u003e Dense foam core provides consistent sound absorption and prevents moisture from saturating the layer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e36 ft2 coverage:\u003c\/strong\u003e One roll sized 15.7 in x 330.7 in gives enough material for several doors or a trunk lining without piecing many small parts together.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree-layer construction:\u003c\/strong\u003e High density foam, quality adhesive and backing paper create a mat that is both a vibration deadener and a thermal blocker.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWaterproof and odorless:\u003c\/strong\u003e The materials are described as odorless and resistant to humidity, so performance holds up in rainy conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy to cut and fit:\u003c\/strong\u003e The flexible foam can be DIY cut to size for tight curves and panels, simplifying installation for non-professionals.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThis mat is a practical choice for car owners who want noticeable noise reduction and improved cabin temperature control without investing in heavy, professional installations. It is especially useful for older vehicles with thin panels or for anyone installing sound deadening in doors, trunk lids, hood insulators or firewall patches.\u003c\/p\u003e\u003cp\u003eIt is not intended as a floor underlayment or a structural floor replacement; buyers seeking thicker mass-loaded sheets or products specifically designed for floor use should look at alternatives built for that purpose. Also, users who need factory-level adhesive strength for high-heat engine compartments may want a professional-grade adhesive backing.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eEffective at reducing road and panel noise while also blocking radiant heat.\u003c\/li\u003e\n\u003cli\u003eLarge single-roll coverage simplifies layout and reduces seams for many DIY projects.\u003c\/li\u003e\n\u003cli\u003eFlexible, easy to trim with common tools and safe to handle thanks to odorless materials.\u003c\/li\u003e\n\u003cli\u003eWaterproof construction performs well in humid or wet conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eAdhesion behavior is mixed in customer reports, so additional adhesive or careful surface prep may be needed.\u003c\/li\u003e\n\u003cli\u003eNot recommended for floor applications where heavier, more rigid materials are preferable.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial thickness\u003c\/td\u003e\n\u003ctd\u003e4 mm (approx 157.48 mil)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoverage area\u003c\/td\u003e\n\u003ctd\u003e36 ft2 per roll\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRoll size\u003c\/td\u003e\n\u003ctd\u003e15.7 in x 330.7 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eClosed cell foam with adhesive backing and back paper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary benefits\u003c\/td\u003e\n\u003ctd\u003eSound deadening, heat blocking, waterproofing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage quantity\u003c\/td\u003e\n\u003ctd\u003e1 roll\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe VOISEN 4mm sound deadening mat is a solid value for DIY vehicle soundproofing and heat control: it balances coverage, flexibility and waterproofing in an odorless, easy-to-cut product. It is recommended for doors, trunks, hoods and firewall applications where lighter, flexible insulation is appropriate; buyers should plan for careful surface prep or extra adhesive if they need very strong long-term bond strength.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eCan this mat be used on car doors?\u003c\/strong\u003e\u003cbr\u003eYes. It is suitable for doors and can be cut to fit inner panels to reduce road noise and vibrations.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs it safe in humid-weather conditions?\u003c\/strong\u003e\u003cbr\u003eThe closed cell foam and waterproof construction make it appropriate for rainy or humid environments without trapping moisture in the mat itself.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill one roll cover an entire small car?\u003c\/strong\u003e\u003cbr\u003eOne roll provides 36 ft2; it can cover several panels but may not cover every surface of a small car depending on how many areas are treated.\u003c\/p\u003e","brand":"VOISEN","offers":[{"title":"Default Title","offer_id":48247261921499,"sku":"B0CYNRQWFJ","price":35.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71QIcGChPOL._AC_SL1500.jpg?v=1776286345","url":"https:\/\/gearmusthave.com\/products\/voisen-sound-deadening-mat-4mm-36sqft-thermal-noise-blocker","provider":"GearMustHave","version":"1.0","type":"link"}