ACOUSTICAL SEALANT CHOICES - CONTENTS: who supplies acoustical sealants? List of acoustical sealant suppliers.Use of acoustical sealant for the lap joints between sheets of polyethylene vapor barriers in buildings. Use of & sources for tapes to seal poly vapor barrier joints. Solar Age Magazine Articles on Renewable Energy, Energy Savings, Construction Practices
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Sound control in building includes isolating sound transmission pathways: this article explains the use of acoustical sealants for sealing lap joints between polyethylene vapor barriers & sources of acoustical sealants. Our page top photo illustrates use of a fire-retardant foam used at a drain pipe penetration through building walls and floors - a step that also improves sound insulation.
Our second photo (below) shows how we finished the plastic pipe chase with foam insulation to stop noise transmission into the occupied building space.
Use of Acoustical Sealant for Sealing Vapor Barriers on Interior Walls
[Click to enlarge any image]
Shown above: blown-in insulating foam around and in the pipe chase for sewer piping seals off those plumbing sounds from the occupied spaces in this building.
The question-and-answer article about the indoor use of acoustical sealants or tape products to seal vapor barriers, quotes-from, updates, and comments an original article from Solar Age Magazine and written by Steven Bliss.
Question: where do I buy acoustical sealants for use on poly vapor barrier lap joints?
The use of acoustical sealant for sealing lap joints between sheets of polyethylene vapor barriers was mentioned in Solar Age Magazine articles (November & December 1982).
Do you have any information as to acoustical sealant brand names, suppliers of acoustical sealants, or other products suitable for sealing poly vapor barrier lap joints?
Answer: sources of non-skinning, non-curing acoustical sealants for drywall & wall penetrations
The acoustical sealant mentioned in those magazine articles is a non-skinning, non-curing sealant developed for sound control in drywall construction and in wall perforations (wall penetrations such as around electrical boxes).
One such acoustical sealant is available in one-quart cartridges from Tremco.
A variety of tapes useful in sealing polyethylene vapor barrier lap joints are available from Ideal Tape, Inc.
Their products include a clear polyethylene tape (#415) suitable for all-weather use, and a 2-mil aluminum tape (#488,487) for use with foil surfaces such as foil-faced solid foam insulating board.
And almost certainly, poly vapor barrier sealing tapes using foil, poly, or other materials are available from 3-M Corporation.
While special non hardening
acoustical sealants are often specified in commercial
work, any high-quality sealant that remains flexible can
be effective in blocking sound transmission. Butyl, silicone,
and urethane caulk can all be used.
sound leaks, use sealant around electrical boxes, plumbing
penetrations, and any other penetrations in the wall or
For walls with STC ratings in excess of
35, apply a flexible sealant at the joint where the drywall
meets the floor.
Acoustical sealant is also used to seal
around the perimeter of walls or ceilings hung from
Here we include solar energy, solar heating, solar hot water, and related building energy efficiency improvement articles reprinted/adapted/excerpted with permission from Solar Age Magazine - editor Steven Bliss.
ASTM C919-12, Standard Practice for Use of Sealants in Acoustical Applications, abstract excerpts from www.astm.org, retrieved 6 Nov. 2015 Walls, ceilings, and floors in building construction, especially those that are of lightweight construction, and that are designed to reduce or limit sound transmission, can have undesirable sound transmission characteristics if care is not taken to seal joints, voids, and penetrations that typically occur. Unsealed joints, voids, and penetrations will substantially increase the sound transmission characteristics of these types of construction. By sealing them the transmission of sound can be substantially diminished by eliminating “flanking paths.”
Scope 1.1: This practice provides information for the use of sealants to reduce sound transmission characteristics of interior walls, ceilings, and floors by proper application of sealants to joints, voids, and penetrations normally found in building construction, which are commonly referred to as “flanking paths.”
ASTM E2611-09 Standard Test Method for Measurement of Normal Incidence Sound Transmission of Acoustical Materials Based on the Transfer Matrix Method
ASTM E1050-12 Standard Test Method for Impedance and Absorption of Acoustical Materials Using a Tube, Two Microphones and a Digital Frequency Analysis System
ASTM E2963-14 Standard Test Method for Laboratory Measurement of Acoustical Effectiveness of Ship Noise Treatments Laboratory Measurement of Acoustical Effectiveness for Marine Bulkhead and Deck Treatments
The Acoustical Testing of Thermally Insulated Exterior Building Elements, avaliable from ASTM
Use page bottom CONTACT link to suggest other citations
Acoustical Sealant Products & Sources
Acoustic Geometry ASAS29 Acousti-Seal sealant (tube), ($15). available online and from building suppliers. Excerpting from the manufacturer's product description: This professional-series acoustical sealant is a cost-effective and easy way to help stop noise leakage through joints and edges.
When used properly, Acousti-Seal drastically increases the overall Sound Transmission Class (STC) of floor, ceiling, and wall assemblies. This acoustically-effective sealant bonds to wood, concrete, glass, gypsum, metal and plastic. When dry, it will remain soft and flexible, will not crack, and is paintable. It’s great for wall/floor junctions to seal cracks and voids, heating and A/C ducts, cold air returns, exposed joints, and electrical and utility outlet boxes. Features: low VOC, low odor, non-toxic, cost-effective, essential for high-STC walls/floors, paintable, easy cleanup.
AcoustiSeal™ Acoustical Sealant # AS-29, distributed by acousticalsurfaces.com, flammability spec: ASTM E-84 – 76, Class A
Contact: Acoustical Surfaces, Inc.
SOUNDPROOFING, ACOUSTICS, NOISE & VIBRATION CONTROL SPECIALISTS
123 Columbia Court North, Suite 201, Chaska, MN 55318
(952) 448-5300, Fax (952) 448-2613, (800) 448-0121
Franklin INternational 2892 Sound Sealant, 28-oz, Green ($12.00) sold at amazon.com and other suppliers.
Grabber Acoustical Sealant, Grabber Construction Products, ($8.00), Website: www.grabberman.com, this is a UL 723-classifed product exceeding ASTM C834 and testing in accordance with ASTM E84, ASTM E90 and ASTM C919, the vendor says this sealant will meet NFPA Class A fire rating
Green Glue Noiseproofing Sealant, TrademarkSound, sold at Amazon.com, product description excerpt: Green Glue Noiseproofing Sealant exceeds LEED green building requirements, is low V.O.C., and is low odor. It can be easily cleaned while still wet with soap and water.
Latex-based caulk is also sold as an "acoustical sealant" such as Auralex, StopGap acoustical sealant caulk, sold by Zoro.com and other suppliers. Acoustical Sound Sealant is A One-Part, Non-Flammable, Latex Based Product Formulated to Reduce Sound, Transmission in All Types of Wall Partition Systems
OSI Pro-Series SC-175 Acoustical Sound Sealant (tube) ($13.00) available online and from building suppliers. This is a water-based sealant intended to reduice sound transmission. Excerpting from a supplier of this product: soundproofcow.com who provide a product description:
OSI® Pro-Series® SC-175™ Acoustical Sound Sealant is a water-based sealant designed to reduce sound transmission in both exposed and unexposed walls and partition systems. Its’ Primary function is to achieve and maintain the specific STC (Sound Transmission Class) value of the system design. VOC compliant.
QuietSeal® Pro Acoustical Sealant (12-pack $180.00), available online and from building suppliers.
Smoke and Acoustical Caulk, 5-gallon container, white,STL# SNS105W, produced by STI, ($125.00). This product is intended for application through a caulk gun.
Soundseal® Acoustical Sealant, 29 oz. tube, ($12.00) available online and from building suppliers.
St. Gobain GGSEALANT-28OZ Green Glue Noiseproofing Sealant, 28 oz, also sold at Amazon. com ($14.00),
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Solar Age Magazine was the official publication of the American Solar Energy Society. The contemporary solar energy magazine associated with the Society is Solar Today. "Established in 1954, the nonprofit American Solar Energy Society (ASES) is the nation's leading association of solar professionals & advocates. Our mission is to inspire an era of energy innovation and speed the transition to a sustainable energy economy. We advance education, research and policy. Leading for more than 50 years. ASES leads national efforts to increase the use of solar energy, energy efficiency and other sustainable technologies in the U.S. We publish the award-winning SOLAR TODAY magazine, organize and present the ASES National Solar Conference and lead the ASES National Solar Tour – the largest grassroots solar event in the world."
Steve Bliss's Building Advisor at buildingadvisor.com helps homeowners & contractors plan & complete successful building & remodeling projects: buying land, site work, building design, cost estimating, materials & components, & project management through complete construction. Email: firstname.lastname@example.org
Steven Bliss served as editorial director and co-publisher of The Journal of Light Construction for 16 years and previously as building technology editor for Progressive Builder and Solar Age magazines. He worked in the building trades as a carpenter and design/build contractor for more than ten years and holds a masters degree from the Harvard Graduate School of Education.
Excerpts from his recent book, Best Practices Guide to Residential Construction, Wiley (November 18, 2005) ISBN-10: 0471648361, ISBN-13: 978-0471648369, appear throughout this website, with permission and courtesy of Wiley & Sons. Best Practices Guide is available from the publisher, J. Wiley & Sons, and also at Amazon.com
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