Green glue vs mass loaded vinyl. Mass Loaded Vinyl is the most popular product for soundproofing walls in the industry. Green glue vs mass loaded vinyl

 
 Mass Loaded Vinyl is the most popular product for soundproofing walls in the industryGreen glue vs mass loaded vinyl  View 1 LB View 2 LB Learn More About MLV

Green Glue Technical Data Sheet. (it's not a. CLD compared to Mass Loaded Vinyl (MLV) Soundproofing guidance and tips. The introduction of mass loaded vinyl in the 1960s as an effective soundproofing option was a blessing for architects and engineers. I am doing a decoupled wall method 2 layers of 5/8 with green glue on all walls and ceilings. 5 out of 5 stars 81. On average, mineral wool can be anywhere from 20% – 50% more expensive than fiberglass. The data was collected at Orfield Laboratories, an independent NVLAP accredited lab in Minneapolis, MN, in 2005, and compares Green Glue to two different common. ) Bituthene 4000 is a self-adhesive HDPE waterproofing membrane with super tacky compound for use with patented, water-based Bituthene System 4000 Surface Conditioner. Read more on how to install mass loaded vinyl here. Squeeze a layer of Green Glue onto the drywall – roughly 2 tubes per sheet. For steel stud installation, use. Effective soundproofing, at the very least, involves adding mass and other sound blocking methods to stop the transfer of noise from one space to another. You should add one. Vinyl – this is what gives MLV its flexibility. 1. For the new studs, you can use either 2×4 or 2×6 lumber. This material will not help with. Fabric-Wrapped Panels. Temple of Light. Green Glue VS Mass Loaded Vinyl. The standard mass loaded vinyl product is made out of a combination of sand and salts. Even more extensive measures can be taken if need be, such as covering exposed duct with mass loaded vinyl or insulation + vinyl barrier. C. 800-782-5742 Talk to an expert. 50-02 23rd Street. Mass Loaded Vinyl Alternatives. Roxul Safe N Sound. Let us help you with your soundproofing plans. Select options. An STC rating of 64 in a wall with GenieClips® RST will yield an STC 54 in a basic ceiling assembly. Mass loaded vinyl (MLV) is also a more expensive option. Read More 3 Best Mass Loaded Vinyl (MLV. Buy Sound proofing materials for Walls, Floors, Doors, and Ceilings & more from Acoustimac. And remember that this is all about vibration. MLV sound barriers offer exceptional noise reduction by adding mass with minimal thickness. Mass loaded vinyl (MLV) is a versatile and highly efficient soundproofing material. $16. Mass loaded vinyl mats are thick soundproofing panels with the ability to dampen the sound by 35-40%. 4. Green Glue is a popular MLV alternative, especially for do-it-yourselfers tackling existing walls. Here’s a video describing the difference between 1/2″. They can be made from high-density material such as. Page 2 of 3 - Green Glue -vs. Improves Health & Safety. If opting for this, it might be worth using normal 2×4 lumber for the furring strips so the whole setup is deeper. But if you need to soundproof tricky objects like pipes or vents, or specialized rooms such as a home theater or. O. When autocomplete results are available use up and down arrows to review and enter to select. Attach 2' x 4' sheets of Comfortboard 80 to the underside of the joists, attaching with lags through 1x3 furring strips. $172. Like decoupling, you can rely on damping compounds to stop low-frequency noise. Attaching mass loaded vinyl to the studs is another way to improve a wall without using. Page 2 of 3 - Green Glue -vs. It. Acoustical Foam Panels. a Quietrock for a renovation that is gutted down to studs (looking at your new construction guidelines for the most part) Green glue needs 2 tubes/4x8 and 2 1/2" 4x8's 2 4x8 drywall (at $11 ea. For laying down flooring, tile and LVP is relatively easy if you can follow directions. Considering MLV is a pricey product, it makes sense that a mass loaded vinyl alternative should be cheaper. Cut your mass loaded vinyl to size if it comes in a roll. 5' X 30' - 4' X 10' - 4' X 4' -. Green Glue Case, 12 per case Sound Isolation Tape, Integrity Gasket, 1-7/16" x 100' Green Glue Tube Black Vinyl Seam Tape Roll 2" x 108' Our Price: $285. Both are excellent choices for a variety of reasons. If you’re looking for maximum vibration reduction, MLV often comes out as the champ in our books. Mass loaded vinyl can also be used as a carpet. Obviously, the wall can’t be made to be floppy; but the soundproofing inside the wall can be floppy. 4) Pam: I live in a single level condo. Mass loaded vinyl, on the other hand, is specifically designed for soundproofing. Be sure to leave an inch or two clearance between the plug and the windowpane. While expensive, sheets of mass-loaded vinyl can be layered or cut into strips and attached to studs and joists to limit sound transfer between rooms. I am also raising the floor and green glueing in order to soundproof. It worked - the biggest cost was the mass loaded vinyl material. Advanced Acoustics Soundproofing Mat 3m by 1. Green Glue vs Mass-Loaded Vinyl (MLV) Both of these products are used for the same purpose in soundproofing; dampening. Resilient channel provides decoupling whereas Green Glue is a damping compound. The math works as follows: $25. It can completely seal off air transfers that people might not be aware of. Obviously, the wall can’t be made to be floppy; but the soundproofing inside the wall can be floppy. With a utility knife, use a straight edge ruler to cut a square edge evenly through the MLV. Here is a professional grade Acoustic Absorption Panel from Rhino. ). Instead of a foamy material, a mass loaded vinyl resembles a wallpaper. the sound meters shows 95 db with the FM radio playing in the room, other side of wall, the meter doesn't register! Shop our soundproof mass loaded vinyl barrier today. Chart 2 - Effect of adding mass 10 20 30 40 50 60 70 80 100 125 160 200 250 315 400 500 630 800 1000 1250 1600 2000 2500 3150 4000 5000 Frequency (Hz)Green Glue - 12 Tube Cases : Green Glue - 5 Gallon Buckets : Acoustical Caulk - 12 Tubes Cases : Combo Pack - 12 Tubes Cases : Mass Loaded Vinyl, 1 LB per Square Foot. LAG-Series acoustic pipe and duct lagging flexible noise barriers are a composite material featuring a flexible, reinforced, foil-faced mass loaded vinyl noise barrier bonded to a scrim-faced quilted decoupler/sound absorber. Green Glue can be applied to many surfaces, including mass loaded vinyl, which is a type of highly dense material designed to reduce sound transmission. So rockwool is roughly half the price. The RSIC-1™ clip is designed for Wood, Steel, and Concrete Walls and Ceilings and is Classified UL rated. Mass Loaded Vinyl Vs. Increase the Mass of the Surface With MLV. Reduces Sound Transmission. Green Glue is a popular alternative to Mass Loaded Vinyl, known. Modified 5 years, 5 months ago. 96K subscribers Subscribe 62 3. Attach these materials to the MDF with bond or spray glue. Mass Loaded Vinyl Adding mass loaded vinyl. Weight/mass is an important component of wall performance, and we are aware of no material that is lower. It was significantly cheaper and faster to use 5 gallon buckets of Green Glue with a pneumatic spray gun than cutting, hanging and caulking MLV. 3. Mass loaded vinyl is limp mass, meaning it doesn’t vibrate when sound waves hit it. No Reviews. $16. I know MLV has been blasted in the forums before as being "not effective" in its soundproofing purposes versus the cost. Class A Mass Loaded Vinyl Barrier; Coat of Silence – Acoustical Paint; Duct V-Max; Echo Barrier – Outdoor; Green Glue – Damping Compound; Mass Loaded Vinyl Barrier; Melamine Composite Panel; Noise S. Read more about this alternative in our green glue vs mass loaded vinyl article and our green glue alternatives. Just as the name implies, Mass Loaded Vinyl is used to add mass to surfaces, as well as dampen and absorb sounds. They can also be used on wall and ceiling joists to enhance sound control. m. Now we still use constrained layer mass damping as a technique but we found better materials that work for tonal qualities in our vocals. Please note that quality sound blocking products for walls require adding layers of drywall, mass loaded vinyl, and green glue. For the next layers, repeat the process of measuring and cutting to fit for the neoprene foam and mass loaded vinyl. Green glue. If you go with 2 lb/ft^2 with no gaps, you will notice a significant improvement in noise reduction. Here in the States, Green Glue is the least expensive damping material at $0. It is rated at 26 STC points in the one pound variety and 32 STC points in the two pound version. Mass loaded vinyl can be used on walls, ceilings, or floors to provide a sound barrier between two spaces. As an adhesive, it’s used during construction to hold panels together to reduce the sound that passes through. It is made from polyvinyl acetate (pva) and water. Noise Grabber Mass Loaded Vinyl; How to Properly Install MLV on. It travels through the air by vibrating air molecules and through walls and ceilings by vibrating them as. 1 LB Mass Loaded Vinyl. P. So it’s better to use nails/screws. One of the best qualities of green glue is that it can be used in wet rooms, such as a bathroom or kitchen. - Extra Drywall Phone: 989-832-1602 | [email protected] product, same noise reduction, same options. Other soundproofing materials. Automatic Door Bottom. with insulation lightly placed inside and possibly some green glue or mass loaded vinyl on the inside (don't forget the ceiling/roof, as it will. Read More Green Glue vs. Sheathing tapes are generally polypropylene with acrylic adhesive. 16th June 2017 #3. Green Glue – Damping Compound; Mass Loaded Vinyl Barrier; Melamine Composite Panel; Noise. Simply cut mass loaded vinyl into any shape to create a very thin type of sound barrier on a server rack. I wanted to pose a question on room mods but do not see a logical placeto insert it so I am going withResilient channel vs green glue. Soft surfaces help absorb sound, so having a soft layer of fabric under your drums helps. 5 mm). 60US a square foot. Use construction glue to glue 1/2 plywood to wooden boards first (to eliminate all squeaks and create monolithic rigid surface) and then use green glue and. Adding mass makes it more difficult for the structure to vibrate, and mass loaded vinyl is ideal for this. Add 3/4 inch plywood with green glue between the wooden board subfloor and the plywood. I share a crawl space and attic with the unit I have a common wall with. 100 Square Foot, PSA Backed Roll : Mass Loaded Vinyl, 2 LB per Square Foot. Adding a layer of the drywall along with green glue will result in better efficiency and noise dampening when it comes to walls. Oh and any wall penetration has to be airtight sealed with clay and the door must be thick thick solid wood. This is typically why the Mass Loaded Vinyl is instructed to be installed against the studs and then drywall over it. Cable Isolator. 07 of 07. 40. For a 10ft by 10ft room, the costs for a double 5/8″ drywall with green glue would be $487. Green Glue Case, 12 per case Green Glue Pail Applicator Black Vinyl Seam Tape Roll 2" x 108' Acoustical Caulk Sealant Case, 12 tubes per case Our Price: $285. Mechanically decoupling walls/ceilings can add up to 20 STC points. MDF (Medium Density Fiberboard) While MDF has a similar mass as drywall and will give roundabout the same type of soundproofing results, it has a couple of serious drawbacks: It costs more- a single ¾“ thick, 4ft x 8ft sheet of MDF costs about $30. There are specialist extra-high-density materials for this purpose such as the thin lead sheets mentioned by another commenter and mass-loaded-vinyl, but when one is pricing high-density materials the best value for money in terms of Kg/M 2 /€ or Lbs/ft 2 /$ is gypsum drywall AKA sheetrock. Attach 2' x 4' sheets of Comfortboard 80 to the underside of the joists, attaching with lags through 1x3 furring strips. WOW. In addition, make sure you weatherstrip the door frame, and add a sweep to the bottom. Includes a rubber partition for reducing airborne and structure-borne vibration. HCM CS2: 35 phan văn sửu , phường 13 , quận tân bình , TP. The Green Glue Company is pleased to present data for Green Glue (a viscoelastic damping material), and mass-loaded vinyl, commonly known as MLV (a limp-mass sound barrier). It’d help with dampening the 2 pieces of drywall and filling in any air gaps. Mass Loaded Vinyl (MLV) is a classic sound transmission blocker but limited in real-life performance. Place the sheets close together to avoid any space through which noise could escape. Green Glue is a noise damping glue with similar properties to QuietGlue Pro. Mass Loaded Vinyl (MLV) comes in 1 or 2 pounds/sq. SoundAway Barrier offers an effective solution to block voices and reduce noise. Made in the USA from virgin material, no odor. Use as much as is necessary to hold the MLV in place. 2. A square foot of MLV can cost anywhere between $1 and $2. The Bituthene. 5. Line the stud cavities with fluffy insulation. What Is Green Glue? Green Glue is commonly used to dampen sounds and reduce vibrations so you can soundproof walls, ceilings or floors. 00. Mass loaded vinyl is a very popular material for soundproofing. This allows the barrier to move in 3-Dimensional space. The vinyl provides flexibility and the core provides dense. Those same doors’ STC values shoot up significantly after proper sealing: 2. Like QuietGlue Pro, it is designed to be used between two sheets of plasterboard. com. As has been written in this thread, Green Glue is tested. m. Would hanging a curtain of MLV inside the wall (weaving it between the studs) help absorb sound travelling. - Mass Loaded Vinyl 10 20 30 40 50 60 70 31. Not all pipe wraps are true MLV. 5 mm Sound Control Underlayment for Vinyl, Laminate and Wood FlooringAdd Mass Loaded Vinyl. Whether you're hearing noise from above, or outside, you can use mass loaded vinyl to create more mass and drown them out. Green glue is a viscoelastic. Resilient Sound Isolation Clips (RSIC) is used in the process of decoupling walls, ceilings and floors. Green glue is a popular sealant in the DIY soundproofing community. As with mass loaded vinyl, you want to seal around the perimeter and and penetrations with acoustical sealant. A layer of loosely hung mass loaded vinyl (MLV) adds a noticeable amount of sound reduction across the audible spectrum while only minimally increasing the wall thickness. Buy Sound proofing materials for Walls, Floors, Doors, and Ceilings & more from Acoustimac. As the name implies, it’s made from vinyl and usually, a material called barium sulfate. Green Glue will begin curing within 15 minutes of application, but won’t be considered “fully cured” until 30 days have passed. Mass-loaded vinyl is a heavy polymer sheet that you can attach to the joists and studs within a wall before putting in resilient or hat channels and covering the internal structure with drywall. Mass loaded vinyl and green glue are in stock. The Green Glue Company is pleased to present data for Green Glue (a viscoelastic damping material), and mass-loaded vinyl, commonly known as MLV (a limp-mass. After installing it, you need to set drywall. For modifying existing walls, Green Glue is the best option. Noise Grabber™ MLV is offered in multiple. It is rated at 26 STC points in. 23 Reviews. The name “soundproof wallpaper” is something of a red herring, as it doesn’t actually soundproof. O. Green Glue is an innovative soundproofing compound that can be applied between layers of drywall or other wall coverings. It’s a durable, high-density barrier that effectively dampens unwanted noise. - Mass Loaded Vinyl Green Glue -vs. Green glue is a natural, non-hazardous glue commonly used in renovations and construction projects. A typical roll of this MLV is 4 feet wide, 50 feet long, and ½” thick. Now we still use constrained layer mass damping as a technique but we found better materials that work for tonal qualities in our vocals. Soundproofing web sites state, "Mass Loaded Vinyl is a reflective barrier material that weighs one or two pounds per square foot. So, QuietRock wins again. Steel – 17. A thin 1/2" layer of factory damped dyrwall weighs 68 lbs per 4x8 compared to 144 lbs that Green Glue and 2 layers of Type X drywall weights per 4 x 8. Show. For some further explanation on the differences between these two concepts, check out our video above; or to shop our Premium Mass Loaded Vinyl. Mass Loaded Vinyl. "Level 1" - When cost is the primary consideration; Single stud wall with Green Glue. 1 LB VS. Caulk is your friend. com. This assembly decouples the drywall from the structure to prevent sound from traveling through, adding up to 7 STC points. Each has its pros and cons, and we’re here to help you choose the best fit for your space. Call 888-827-1266 or Shop online today!Acoustimac Soundproofing Putty Pads 7. In my mind, the advantages of MLV were it is relatively thin - doesn't take away from the width of the room versus another layer of 5/8" sheetrock. Our Mass Loaded Vinyl is manufactured in the USA, is strong and has no odor. 59 – $ 230. If you're curious on if you should use Green Glue vs mass loaded vinyl, then you should check out our article on. The vinyl provides flexibility and the core provides dense. MLV, here’s a quick answer: In terms of performance for Green Glue vs. Nothing wrong there unless the Green Glue hardens in the future which can, in some cases happen, causing small acoustic pockets in the plasterboard sandwich cavity. This material adds mass to the walls and ceiling, reducing sound transmission. But it’s pricey!Green Glue is a noiseproofing sealant that is made to raise the damping of structures to effectively dissipate sound energy. The purpose of mass loaded vinyl is exactly as it sounds. From mass loaded vinyl to soundproofing spray, there’s something for all types of problems. Mass-Loaded Vinyl Sound Barrier. We found Green Glue to be the least expensive and clearly the best performing”. Once up, use acoustic caulking to. In this blog post, we’ll dive deeper into the top 10 mass loaded vinyl alternatives, providing more information about each one, including comparisons to MLV in terms of installation, cost, and performance. Quantity = Length. When it comes to choosing the right grease for your industrial applications, you can’t go wrong with either green grease or red ‘n’ tacky. For all but Green Glue, this is generally true. Density: 1 lbs/ft2; Dimensions: 54” x 24” Size: 9 ft2; Made of mass loaded vinyl material; Offers both acoustic and heat resistance; It’s durable; Check Price: Henkel OSI SC175 Draft And Acoustical Sound Sealant. That stuff has to make spec or there is hell to pay. 00 per square foot, which becomes prohibitive for some. Deduct 1/8” – ¼” from total height. Vibration-dampening compounds like Green Glue; High-density barriers like Mass Loaded Vinyl (MLV) Specialized drywall like Soundbreak XP; Resilient sound isolation clips (RSIC-1 Clips) Sound absorption – This process aims to improve the sound quality within a room by reducing echoes or reverberations. Green Glue, which makes whisper clips, is better known for its sound dampening compound. 60 $13. From this chart you can see that for the most part adding Mass Loaded Vinyl or Green Glue to a wall will greatly increase the transmission loss at frequencies above 250 hz. 6. Request a Quote. These clips will actually detach the drywall from the building’s structure. Elmer’s glue is a popular brand of white, non-toxic glue that is used for crafts, woodworking, and school projects. Mass loaded vinyl is an acoustical barrier that is excellent for blocking noise transfer while taking up minimal space. 3 Best Mass Loaded Vinyl (MLV) Brands. Shop now to enjoy our & fast shipping. It has calcium carbonate or barium sulfate mixed into it to increase the mass. 5' wide by 12' long. 60 $13. However this treatment will only get you minimal results; it should only decrease the sound transfer between the wall by 9-10 decibels. And remember that this is all about vibration. The best all-around soundproofing product available, Noise Grabber Brand Mass Loaded Vinyl offers premium sound reduction anywhere noise is a problem. Posted November 11, 2010. The Green Glue Company is pleased to present data for Green Glue (a viscoelastic damping material), and mass-loaded vinyl, commonly known as MLV (a limp-mass sound barrier). Green Glue Noiseproofing. SCR offers an Acoustic Sound Barrier, a flexible, non-reinforced mass-loaded vinyl that resists the. As Green Glue isn’t an adhesive, you’ll need to use staples or tacks to hold it in place. - 5p. Rating. This Green Glue Noiseproofing Sealant and the TMS High Quality Sealant come in large 28 oz tubes and will yield approximately 50 linear feet per tube. They block sound transmitted through the air thanks to their high densities. When researching soundproofing products, you’ve likely come across both Green Glue and MLV (mass loaded vinyl). (1 tube gives about 70% of the benefit of 2 tubes). Attach nozzle to cartridge and place cartridge into a standard quart sized caulking gun. That's more than double the weight of the factory. Save on bulk orders when you buy by the pallet. Mass Loaded Vinyl Soundproofing. m. As you can see from the table below, mass loaded vinyl is more than twice as dense. It is. 25" x 7. Flexible, low surface energy, or non-stick materials. Hanging Soundproofing Blankets; 6. Also Read: Green Glue Vs Mass Loaded Vinyl. The reason it is such a fabulous soundproofing material is because sound is an energy wave that travels by vibration. The Green Glue Company is pleased to present data for Green Glue (a viscoelastic damping material), and mass-loaded vinyl, commonly known as MLV (a limp-mass sound barrier). 375”)- (Figure 2). 25m by 2mm Thin - 5kg/m2 Mass Loaded Vinyl MLV 3. Green Glue vs Resilient Channel download: A 6 page test data guide of Green Glue versus Resilient Channel Admin | Downloads: 6512 |. (1 tube gives about 70% of the benefit of 2 tubes). If your basement is finished, you aren’t out of. Can Mattress Foam Soundproof Effectively? By Sharad Dominic July 10, 2019 November. Measure the height of your wall – this’ll be the length needed for cutting the mass loaded vinyl. MLV. MLV is 1/8″ thick and will reduce both Airborne Noise and Impact Noise by up to 27 decibels. It requires minimum tools and like a single YouTube video. As decoupling is more effective than damping for soundproofing, resilient channel would be the better choice as compared to Green Glue. Intro Mass Loaded Vinyl Vs. One can get MLV at about $1/sq ft. In short, don’t think you can use it to stick down mass loaded vinyl or drywall. Green Glue Compound. Green Glue 5 Gallon Pail; Speedload Dispenser; Serena Underlay; IB-1 Sound Isolation Clip; IB-3 Decoupling Bracket; Acoustical Putty Pads; View All; View Cart; 0. And remember, a combination of various soundproofing materials and products can and will help you with better sound insulation. - Mass Loaded Vinyl Green Glue -vs. It’s easy to apply and will effectively control low, medium, and high-frequency sound. For this method, invest in acoustically enhanced gypsum drywall and apply a layer of green glue to the surface. 03 including the cartridge gun delivered. Put a layer of mass loaded vinyl on top. 4″ and come six to a package. The data was collected at Orfield Laboratories, an independent NVLAP accredited lab in Minneapolis, MN, in 2005, and compares Green. Important Notice: SilentWrap™ Mass loaded Vinyl PSA needs a smooth surface to bond effectively. MASS LOADED VINYL Depending on expectations, mass loaded vinyl alone may be enough for your project. Don’t use thermal insulation products such as polystyrene and expanded foam panels. Mass loaded vinyl doesn't really have much of a place in a wall, it can be used for ceilings and floors. The curtain is an effective and durable sound absorber that comes with a mass-loaded vinyl barrier. Mass loaded vinyl certainly has good characteristics, but floor underlayment apparently has a higher STC rating. TMS Silent Resilmount MBFR Resilient Mounting Brackets With Rubber. Green Glue has a clear advantage over Mass Loaded Vinyl besides 1250 hz to 2000 hz where the MLV. 8 Reviews. drywall relate to its mass and density. The Green Glue Company is pleased to present data for Green Glue (a viscoelastic damping material), and mass-loaded vinyl, commonly known as MLV (a limp-mass sound barrier). Order online now to enjoy our great prices & fast shipping. Option 1 – Mass Loaded Vinyl. No different housings required. The reason why we don’t use drywall in our builds is that we found better materials. The Green Glue helps dissipate the noise. Green Glue is a liquid, viscoelastic damping compound that can deliver damping with a superior cost/performance ratio. Some Mass Loaded Vinyl products will, in fact, off gas for quite some time. Due to MLV’s flexibility, it is. This is a High Quality Mass Loaded Vinyl which boosts soundproofing performance by adding mass and preventing structure from vibrating. This is typically why the Mass Loaded Vinyl is instructed to be installed against the studs and then drywall over it. Green glue noise proofing is more versatile than mass-loaded vinyl because when it comes to walls, it yields better results of noise proofing and can be used at any place, irrespective of whether the brush can get to that place. Mass loaded vinyl and other limp mass products. Acoustimac Soundproofing Putty Pads 7. - Mass Loaded Vinyl Phone: 989-832-1602 | info@greengluecompany. Mass Loaded Vinyl is an excellent green glue substitute for soundproofing a home, recording studio, and any other space effectively. 3. Apply finished ceiling to the furring strips. Applying Soundproof Paint 8. T. is another way to damp sound vibration. Standard Roll is 54. All versions are a simple PVC sheet, loaded with barium sulfate or calcium silicate to add weight. Learn the benefits of using Green Glue vs. Use it to cancel noise between floors and ceilings, or between. Acoustimac Soundproofing Putty Pads 7. To keep everything in place, glue works in most cases. This Mass Loaded Vinyl Barrier is a one pound barrier, weighs 1 pound per square foot. Quietrock is $50 per 4x8 total. Learn the. The best all-around soundproofing product available, Noise Grabber Brand Mass Loaded Vinyl offers premium sound reduction anywhere noise is a problem. Nothing beats the effectiveness and ease of installation of mass-loaded vinyl. Mass loaded vinyl and green glue are in stock. 4. £31. 1.