SheetBlok-Xtra - SheetBlok Sound Isolation Barrier is about 6dB more effective than solid lead at stopping the transmission of sound.
When building a recording studio or soundproof room, keeping vibrations between building materials is key to success, using sheetblok between drywall layers, floating ceilings and walls provides extra acoustic absorption and keeps this type of sound transmission to a minimum.
SheetBlok Sound Isolation Barrier is a dense, limp-mass vinyl material that is about 6dB more effective than solid lead at stopping the transmission of sound when constructing a sound proof room. It acts as a thin, dense sound barrier layer in walls, ceilings or floors and is most effective when used as one component of a multi-layered construction scheme which makes it ideal for people who are building a home recrding studio from scratch.
SheetBlok helps in decoupling (i.e. floating) floors and walls and, while it's not normally considered a finish product per se, it is paintable with latex paint.
Some harder-to-work-with applications of SheetBlok (such as ceilings) require an adhesive to temporarily mount the product until the finishing layers can be assembled. That's where SheetBlok-Plus Sound Isolation Barrier comes in. SheetBlok-Plus is a dense, limp-mass material that comes with a PSA (pressure-sensitive adhesive) already attached!
Just peel off the PSA backing and apply the SheetBlok Plus to the area to be covered and that's it! And while it's not meant to be a permanent mounting solution, it will easily hold your SheetBlok up until you're ready to put the finishing layers over it. SheetBlok Plus eliminates the hassles of troweled-on adhesives and mechanical fasteners and can save tons of time.
- STC: 27
- Thickness: 2.5mm
- Weight: 24.4 kg
- Area: 1m x 5m
- Service Temperature: -40° to 180° F
- Tensile Strength: 400 psi
- Tear Strength: 70#/inch
- Flammability: Rated UL94 S.E. "0"
- Passes test MVSS-302
STC Data Table
STC (Sound Transmission Class), is a numerical rating of how effective a material is at blocking the transmission of sound through itself. This rating generally applies to hard materials like rubberized sound barriers, concrete, brick and drywall but also applies to a much lesser degree to softer materials like mineral fiber (although it isn't tested by itself; it's tested as part of a wall system to verify its effectiveness). Virtually every material filters out some of the sound that travels through it, but dense materials are much better at this than are spongy materials.