{"product_id":"2-lb-mass-loaded-vinyl-4x4-16-sf-mlv-soundproofing-barrier-32-stc","title":"2 LB Mass Loaded Vinyl 4x4 (16 SF) MLV Soundproofing Barrier - 32 STC","description":"\u003cp\u003eIn this review the EnviroFlex 2 LB Mass Loaded Vinyl 4x4 is assessed for DIYers and pros who need a straightforward way to block airborne noise. The bottom line: this roll delivers a dense, flexible barrier that targets voices, traffic, and appliance noise, and its stated \u003cstrong\u003e32 STC rating\u003c\/strong\u003e is the primary reason to consider it for walls, ceilings, floors, and vehicles. Installation is simple enough for a competent homeowner and the material is odor-free, making it useful where indoor air quality matters.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh density construction:\u003c\/strong\u003e The 2 LB per square foot weight gives a substantial mass layer that reduces airborne sound transmission through partitions and panels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e32 STC performance:\u003c\/strong\u003e Engineered acoustic control provides measurable reduction of voices, traffic, and appliance noise when installed in typical wall or ceiling assemblies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible and easy to cut:\u003c\/strong\u003e The vinyl bends around curves and corners and cuts cleanly with a utility knife so trimming to fit outlets, studs, or vehicle panels is straightforward.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple installation options:\u003c\/strong\u003e Can be attached with screws, adhesive, or nails so professionals and DIYers can adapt it to studs, furring channels, or vehicle interiors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNon-toxic, odor-free material:\u003c\/strong\u003e Made from recycled vinyl blend that meets building code requirements and is suitable for indoor spaces without off-gassing concerns.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile applications:\u003c\/strong\u003e Suitable for home studios, conference rooms, garages, boats, and automotive panels where an add-on mass barrier is needed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis product is best for homeowners improving bedroom or living-room privacy, studio owners treating control rooms, and auto enthusiasts adding a mass barrier behind interior panels. Contractors working on commercial retrofit projects will also find the roll convenient for adding mass to partitions without major demolition.\u003c\/p\u003e\n\u003cp\u003eIt is less appropriate for those needing a full acoustic treatment by itself; the MLV is a mass layer and works best combined with decoupling or absorption for low-frequency control. If someone needs a finished decorative surface or sound absorption as the primary solution, they should look at complementary insulation or dedicated absorbers.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHigh mass per square foot provides effective blocking of airborne sounds in many retrofit situations.\u003c\/li\u003e\n\u003cli\u003eFlexible material that cuts and fits easily around obstacles, reducing installation time.\u003c\/li\u003e\n\u003cli\u003eNon-toxic and odor-free composition makes it suitable for occupied spaces immediately after install.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMLV adds mass but does not by itself solve low-frequency issues; additional treatments may be required for bass control.\u003c\/li\u003e\n\u003cli\u003eThe material is heavy and requires secure fastening; large areas can be awkward for a single installer.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct type\u003c\/td\u003e\n\u003ctd\u003eMass loaded vinyl (MLV) roll\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e2 LB per square foot\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoverage\u003c\/td\u003e\n\u003ctd\u003e4 ft x 4 ft (16 SF)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSTC rating\u003c\/td\u003e\n\u003ctd\u003e32 STC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eRecycled vinyl blend, non-toxic and odor-free\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation\u003c\/td\u003e\n\u003ctd\u003eCut with utility knife; attach with screws, adhesive, or nails\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe EnviroFlex 2 LB MLV 4x4 is a practical, value-minded mass barrier for anyone adding sound blocking to walls, ceilings, floors, or vehicle panels; its \u003cstrong\u003e32 STC\u003c\/strong\u003e performance and odor-free material make it a sensible choice for homes and studios, though it works best when combined with absorptive or decoupling solutions for full-room acoustic control.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCan I cut this with common tools?\u003c\/strong\u003e\u003cbr\u003eYes. Trim the vinyl with a utility knife and straightedge for clean edges; use appropriate fasteners or adhesive for installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill this remove low-frequency bass?\u003c\/strong\u003e\u003cbr\u003eMLV adds mass and reduces airborne mid and high frequencies effectively, but low-frequency control often requires additional decoupling or absorptive measures.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it safe for indoor use?\u003c\/strong\u003e\u003cbr\u003eThe product is made from a recycled vinyl blend and is described as non-toxic and odor-free, suitable for occupied indoor spaces.\u003c\/p\u003e","brand":"EnviroFlex","offers":[{"title":"Default Title","offer_id":48249034801371,"sku":"B0DT4Y35W8","price":94.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/51NLBQq1uuL._AC_SL1500.jpg?v=1771102942","url":"https:\/\/gearmusthave.com\/products\/2-lb-mass-loaded-vinyl-4x4-16-sf-mlv-soundproofing-barrier-32-stc","provider":"GearMustHave","version":"1.0","type":"link"}