Acoustic Sealants & Coatings
Noise Control is Attention to Details.
Seal Every Gap. Block Every Sound Path.
Even the strongest wall or enclosure can allow noise to 'escape' if gaps, seams, or surfaces are left untreated. Our products can help you achieve higher STC ratings, maintain better speech privacy, and assure confidence in your noise control investment.
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The Unseen Path of Noise
Even the most advanced noise barriers can fall short if small gaps or seams are ignored. Sound travels through the tiniest openings, reducing the effectiveness of walls, partitions, and enclosures.
That’s why Memtech specifies acoustic glues, sealants, and coatings as part of a complete engineered solution. These materials are not add-ons, they’re the finishing touches that ensure performance, compliance, and long-term durability.
That’s why Memtech specifies acoustic glues, sealants, and coatings as part of a complete engineered solution. These materials are not add-ons, they’re the finishing touches that ensure performance, compliance, and long-term durability.
Acoustic Sealants & Coatings are perfect for:
- Sealing gaps and penetrations to prevent noise leaks
- Improve the sound transmission class (STC) rating of walls, floors, and ceilings
- Reducing structural vibration and the resulting noise
- Sealing electrical boxes, penetrations, and perimeters against leaks
- Ensuring compliance with building codes, HIPAA, and OSHA standards
Each product is designed to deliver performance, ease of use, and compliance in both commercial and industrial applications.
Noise Control Essentials
Acoustic SEALANTS & COATINGS
QuietGlue® Pro
Acoustic Damping Glue
A high-performance viscoelastic damping compound designed to reduce sound transmission through walls, floors, and ceilings. Ideal for both DIY and commercial projects, QuietGlue® Pro is applied between layers of drywall, plywood, or subflooring to reduce the transmission of sound and vibration.
Performance & Design Highlights:
- Easy application with a standard caulking gun
- Cost-effective for remodels, retrofits, and new builds
- Low VOC, water-based, solvent-free, and lab-tested
- Provides broadband noise reduction
Use for: drywall assemblies, subfloors, layered panels.
Acoustic SEALANTS & COATINGS
QuietSeal® Pro
Acoustic Sealant
A premium, non-hardening acoustic sealant that prevents sound leaks through wall perimeters, seams, and penetrations. QuietSeal® Pro stays soft and flexible over time, ensuring long-term performance without cracking or shrinking.
Performance & Design Highlights:
- Maintains STC ratings by sealing flanking paths.
- Easy soap-and-water cleanup.
- Environmentally friendly: water-based, low VOC, and low odor.
- Meets and exceeds ASTM C834 standards.
Use for: sealing wall perimeters, electrical boxes, HVAC penetrations, or anywhere air gaps occur.
Acoustic SEALANTS & COATINGS
QuietCoat® –
Acoustic Damping Coating
A sprayable viscoelastic polymer designed for metal and composite surfaces. QuietCoat® reduces vibration and structure-borne noise with minimal weight and cost, making it a go-to solution for industrial, OEM, and architectural applications.
- Typical noise reduction: 6dB–20dB.
- Fast-drying (under 20 minutes), water-soluble, and RoHS compliant.
- Meets industry flammability standards.
- Easy application by brush, roller, or sprayer.
Use for: HVAC ducts, appliances, machinery, enclosures, automotive parts, elevators, and more.
Acoustic SEALANTS & COATINGS
QuietPutty®
Acoustic Putty Pads
A Class A fire-rated putty that seals electrical outlet boxes, switches, and small openings to preserve the acoustic performance of STC-rated assemblies. QuietPutty® stays soft, won’t shrink, and requires no tools for application.
- Maintains long-term acoustic and fire-rated performance.
- Provides draft and cold smoke sealing.
- Noncorrosive, asbestos-free, and odorless.
- Simple peel-and-press installation.
Use for: outlets, switches, cable penetrations, HVAC cutouts, plumbing penetrations.
Performance Specifications
Engineered to meet ASTM standards, RoHS compliance, and real-world noise control performance.
Noise Reduction
Viscoelastic damping compounds and coatings deliver typical reductions of 6–20 dB, depending on thickness and application
Noise Blocking Capabilities
Rooms and enclosures treated with acoustic glues, sealants, and putties are tested in accordance with ASTM E90 and can achieve room privacy index goals of 80–95% speech privacy, depending on construction
Fire Safety
Acoustic sealants and putties are Class A fire-rated, tested to ASTM E84 with flame spread ratings as low as 15 and smoke emission ratings as low as 10
Environmental Compliance
All products are low VOC (<0.1 g/L), water-based, solvent-free, and meet modern sustainability and occupant health standards
Durability & Flexibility
Sealants and putties remain pliable over time, preventing shrinkage or cracking that would compromise acoustic performance
Application Efficiency
Materials are designed for quick installation, covering 40–80 sq ft per gallon for coatings and up to 88 linear feet per tube for sealants, with curing times ranging from 24–72 hours
Applications
Acoustic adhesives, sealants, and coatings are essential in industries where privacy, compliance, and comfort can’t be compromised:
- Commercial Construction
Improve partition ratings and eliminate weak points. - Healthcare Facilities
Seal patient rooms to support HIPAA compliance. - Industrial Plants
Dampen vibration in ducts, panels, and enclosures. - Education
Ensure classrooms, libraries, and lecture halls remain quiet and focused. - Government & Security
Protect sensitive spaces from sound leaks.
All materials are LEED-compliant and support sustainable building practices.
Support Beyond the Product
Installation assistance available for Michigan and Great Lakes region clients
Engineering consultation to ensure proper material selection
Custom sizing and integration with other Memtech acoustic systems
Replacement panels and parts available for future reconfiguration
Frequently Asked Questions (FAQs)
Why do I need acoustic sealants if I already have STC-rated walls or assemblies?
STC ratings are measured in controlled laboratory conditions with no gaps, penetrations, or flanking paths. In real-world construction, sound travels through the smallest openings. Even a small unsealed gap can dramatically reduce the in-field performance of an otherwise well-designed assembly.
What is the difference between acoustic damping glue and acoustic sealant?
They serve different functions in a noise control assembly. Acoustic damping glue, like QuietGlue® Pro, is a viscoelastic compound applied between rigid layers (drywall, plywood, subfloor) to dissipate vibrational energy and reduce sound transmission through the assembly itself.
Acoustic sealant, like QuietSeal® Pro, is applied at perimeters, seams, and penetrations to seal air gaps that create flanking paths for airborne sound.
Acoustic sealant, like QuietSeal® Pro, is applied at perimeters, seams, and penetrations to seal air gaps that create flanking paths for airborne sound.
What is a flanking path, and how does acoustic sealant prevent it?
A flanking path is any indirect route that sound takes around a noise control barrier, through gaps at the top or bottom of a wall, around electrical outlets, through pipe penetrations, or along structural connections. Flanking is one of the most common reasons a completed room or enclosure underperforms its design target. QuietSeal® Pro and QuietPutty® pads are specifically designed to close these paths at the most vulnerable points in the assembly.
What is QuietPutty® used for, and is it required by code?
QuietPutty® Acoustic Putty Pads seal electrical outlet boxes, switch boxes, and small wall penetrations to preserve both the acoustic performance and fire rating of STC-rated assemblies. Back-to-back electrical boxes on opposite sides of a partition are a well-documented weak point in sound isolation. QuietPutty® is Class A fire-rated (ASTM E84), asbestos-free, and provides draft and cold smoke sealing in addition to acoustic performance. Many building codes and healthcare construction guidelines require that electrical penetrations in rated assemblies be sealed. QuietPutty® satisfies both the acoustic and fire compliance requirements in a single product.
How much noise reduction does QuietCoat® acoustic damping coating provide?
QuietCoat® is a sprayable viscoelastic polymer designed for metal and composite surfaces such as HVAC ducts, machinery panels, enclosures, and appliances. Applied by brush, roller, or sprayer, it delivers typical noise reductions of 6 to 20 dB depending on surface type, application thickness, and frequency content of the noise. It fast-dries in under 20 minutes, is water-soluble, RoHS compliant, and meets industry flammability standards, making it well-suited for OEM manufacturing, industrial plant use, and retrofit applications.
Are these products safe for use in occupied buildings or sensitive environments?
Yes. All products in this line are water-based, low-VOC (less than 0.1 g/L), solvent-free, and formulated for occupant health and indoor air quality. QuietSeal® Pro is low-odor with simple soap-and-water cleanup. QuietGlue® Pro is lab-tested and non-toxic. These characteristics make them appropriate for healthcare facilities, schools, government buildings, and occupied commercial spaces where chemical exposure or off-gassing is a concern.
Do these products support LEED certification or HIPAA compliance?
Yes on both counts. All sealants and coatings in this line are LEED-compliant and support sustainable building documentation. For healthcare construction, QuietSeal® Pro and QuietPutty® help seal patient rooms, exam rooms, and treatment areas against sound leak. LEED documentation is available upon request through Memtech.
Does Memtech provide installation support or on-site consultation for compressed air noise control?
The right product depends on where in the assembly you're treating and what type of noise path you're closing:
Between drywall or subfloor layers → QuietGlue® Pro (damping compound)
Wall perimeters, seams, HVAC penetrations, electrical openings → QuietSeal® Pro (non-hardening sealant)
Metal ducts, machinery panels, enclosures, OEM surfaces → QuietCoat® (sprayable damping coating)
Electrical outlet and switch boxes, cable penetrations → QuietPutty® (putty pads)
Memtech's engineering team can review your assembly drawings or site conditions and confirm the right product, or combination of products, for your performance and compliance goals.
Between drywall or subfloor layers → QuietGlue® Pro (damping compound)
Wall perimeters, seams, HVAC penetrations, electrical openings → QuietSeal® Pro (non-hardening sealant)
Metal ducts, machinery panels, enclosures, OEM surfaces → QuietCoat® (sprayable damping coating)
Electrical outlet and switch boxes, cable penetrations → QuietPutty® (putty pads)
Memtech's engineering team can review your assembly drawings or site conditions and confirm the right product, or combination of products, for your performance and compliance goals.
What coverage rates should I plan for when estimating quantities?
QuietCoat® covers approximately 40 to 80 square feet per gallon depending on application thickness and method. QuietSeal® Pro covers up to approximately 88 linear feet per tube at standard joint widths. Curing times range from 24 to 72 hours depending on product and conditions. Contact Memtech with your project scope for a more precise material estimate.
Can Memtech help with installation or specification for a larger project?
Yes. Memtech provides installation assistance for Michigan and Great Lakes region clients, and engineering consultation for material selection regardless of location. For larger commercial, industrial, or government projects, Memtech can integrate acoustic sealants and coatings into a full engineered noise control specification.
Let’s Engineer the Right Solution, Together.
Let's Get Started. Contact Us.
Talk to our experts. We’ll assess your needs and recommend a solution that works for your project.
