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For ordinary drywall, QuietCoat is the most directly documented coating candidate: PABCO Gypsum/QuietRock specifies wallboard use, several application methods, and a defined film thickness. It is not a substitute for a sound-isolation upgrade. Coatings may damp wall vibration or add some mass, but the wall assembly, gaps, and paths around the wall often matter more than the paint.
What soundproof paint can realistically do
“Soundproof paint” is an imprecise label. A coating can help damp vibration in a panel or add a limited amount of mass; that does not mean it will block all sound passing through a wall. Air leaks around doors, windows, outlets, and edges—and sound traveling through connected floors, ceilings, or adjoining walls—can undermine a coating’s effect.
Recommended Free Tools
#1 Best Overall
- Superior Soundproofing Paint for Walls and Ceilings - This thick, high-density acoustic paint effectively reduces airborne noise transmission through drywall and common building materials, creating a quieter room for bedrooms, home offices, and media rooms.
- Advanced Sound Dampening Paint for Impact Noise - The formula helps absorb vibrations and reduce structure-borne sounds like footsteps, making it an effective soundproof paint for apartments, floors, ceilings, and shared walls.
- Built-in Fire Resistant Paint for Added Safety - This coating provides a fire retardant protective layer that can help slow flame spread, offering peace of mind as a dual-purpose fireproof paint for interior walls and ceilings.
- Easy-Application Acoustic Paint for DIY Projects - This sound dampening paint applies smoothly with a roller over primed surfaces, dries to a flat finish, and is designed for convenient DIY sound control solutions.
- Durable and Long-Lasting Soundproofing Layer - Once cured, this soundproof paint forms a resilient, scrub-resistant coating with strong adhesion to properly prepared drywall, plaster, wood, and concrete surfaces.
First identify the problem. Airborne sound passes through or around a partition; structure-borne noise travels through building materials; impact noise comes from physical contact with a structure; and reverberation is sound reflecting within a room. A wall coating is not a universal fix for all four. If the goal is isolation between rooms, sealing leaks and improving the wall assembly may be necessary; options can include added mass, decoupling, or absorptive treatment, depending on the source and construction.
Sound-damping paint options compared
| Product | Intended use and application | Published thickness and coverage | Published performance or cure information |
|---|---|---|---|
| QuietCoat (PABCO Gypsum/QuietRock) | Acoustical coating for noise and vibration reduction; the most directly documented candidate here for wallboard. Apply by brush, roller, air gun, or airless sprayer. | 0.02 inch per coat, up to three coats (0.06 inch total); 40–80 ft² per gallon. Source: PABCO Gypsum/QuietRock product specifications. | Dries in under 20 minutes; continues curing for 14 days. The product description says full damping results are experienced once cured. Source: PABCO Gypsum/QuietRock. |
| Coat of Silence (VerteTek) | Paintable system positioned for ceilings, walls, plaster, and drywall; a two-step process involving separate base and finish components. | Specialist specifications describe two resilient base-coat layers followed by two mass-building finish-coat layers, with a target thickness of 25–35 mils. About 100 ft² per gallon at two coats for each component. Source: Acoustical Surfaces specification. | Acoustical Surfaces states a 3–7 point STC increase depending on construction and application. This is a conditional product-page claim, not a guaranteed increase for every wall. |
| ISONEM Anti Sound Paint | Water-based, single-component acrylic for interior and exterior use. | At 1 mm and 1 kHz, the technical data sheet reports up to 2.51 dB; at 2 mm and 1 kHz, up to 4.85 dB. Coverage is not stated in the cited technical data sheet. | Touch-free drying: 2 hours; through-dry: 72 hours. The reported decibel values are tied to the stated thickness, frequency, and TS 140-4 measurement description; they are not a general room-wide reduction figure. |
| Silent Running SR-500 | Specialist vibration-damping coating for industrial uses such as motors, turbines, compressors, brackets, sorting devices, chutes, ductwork, bridges, and tunnels—not a default choice for residential drywall. | Approximately 40 ft² per gallon at 0.035 inch dry thickness; approximately 73% solids. Source: Silent Running product information. | A residential wall-sound-reduction figure is not stated in the cited product information. |
The figures above come from different product specifications and test contexts. They are not a head-to-head laboratory comparison, so they cannot be used to rank the coatings by sound reduction.
Rank #2
- Acousti-Coat is a thick, soft coating designed to act as a 'sound sponge'. Deadens sound within the area / room the sound is created in. For sound coming from other areas, use our SC 1000. Use Acousti Coat and your neighbors hear you less. Use SC 1000 and you hear your neighbors less.
- Product is designed to reduce echo and uncomfortable high frequency sounds. Ideal for home theaters, offices, meeting rooms, churches, convention areas, concert halls, etc
- Coverage is 50 square feet per gallon for the minimum two coats required. This means unless you are applying to a small 50 square foot area, one gallon isn't enough.
- ThermaCels included in this paint! This provides insulation properties as well. Do not add additional ThermaCels additive to this product.
- White Flat Finish. Can be tinted using universal colorants, to light or medium shades. If a darker color is required it can be painted over but a very cheap flat interior paint must be used. Using a high quality paint will seal the surface of the 'sound sponge' and diminish results.
Which coating fits a typical wall?
QuietCoat: the clearest drywall starting point
Choose QuietCoat as the first coating to investigate if the surface is wallboard and you can apply the specified number and thickness of coats. Its wallboard specification, application options, coverage range, and curing information make the intended use and installation requirements comparatively clear. The manufacturer’s statement about full damping after curing does not quantify how much quieter a particular room will become.
Coat of Silence: a multi-layer system
Coat of Silence is a more involved option than a single conventional paint coat. Its described sequence uses two resilient base coats and two mass-building finish coats. The stated STC change depends on wall construction and application, so do not assume the advertised 3–7 point increase will apply to an existing wall without matching conditions.
Rank #3
- Can be mixed into any kind of paint or coating. Does not change the properties of the paint it is added to.
- Reduces heat and cooling loss by providing insulation benefits.
- Lowers heating and cooling bills !
- One quart by volume of ceramics is added to one gallon of paint or coating.
- Product is sold in packages according to how much paint you will be using. A 1 gallon package will treat 1 gallon of paint, 12 gallon package will treat 12 gallons of paint, etc
ISONEM: use the test figures narrowly
ISONEM’s technical sheet gives figures at two specific coating thicknesses and at 1 kHz. Those values may help when evaluating that product’s cited test result, but they do not establish how much noise will be reduced across a room’s full range of frequencies or through a particular wall assembly.
Silent Running SR-500: specialist rather than residential
Its listed applications are industrial and structural vibration control. The stated application rate and dry thickness do not establish suitability or expected performance on ordinary painted drywall.
Quick Recap
Best Value
- Waterproofing Protection with Nanotechnology: Engineered with advanced nanotechnology to create a powerful water barrier—KILZ waterproofing paint blocks up to 12 PSI of water pressure to help stop water infiltration on concrete and masonry surfaces.
- Interior & Exterior Versatility: Ideal for both indoor and outdoor use—protects basement walls, masonry walls, stucco, brick, concrete blocks, and retaining walls. For below below-grade application, fill all holes/cracks with hydraulic cement prior to painting. Not for use on floors or on walls with active water leaks.
- Resistant & Alkali Resistant Finish: Formulated for high moisture areas, the resistant paint finish also resists alkali buildup, ensuring a long-lasting, decorative, and durable finish that stands up to tough basement and outdoor conditions.
- Low Odor & Easy to Apply: This low-odor formula is easy to apply, dries to the touch in 1 hour, and ready for recoat in just 4 hours. Fully cures in 7–14 days for washable, durable protection.
- Trusted KILZ Quality: Backed by over 50 years of expertise in surface coatings, KILZ products create long-lasting results you can be proud of for many years to come.
Rank #4
- Suitable for All Seasons: 5mm foam wallpaper helps reduce heat conduction through walls, reducing the impact of hot walls in summer and cold walls in winter on the indoor environment, bringing a more comfortable living experience to bedrooms, living rooms, apartments and basements
- Peel and Stick Installation: self adhesive wallpaper roll with strong backing, easy to install without additional glue; Peel and stick wall covering allows quick application on smooth surfaces such as painted walls, tiles, wood panels; Tip: before installation, please wipe the wall surface clean of dust and keep it dry; After attaching, press the edges firmly to prevent the edges from lifting
- Sound Insulation and Noise Reduction: the high-density foam structure has properties, thus protecting the health of the walls; It also helps reduce noise transmission, thereby achieving a sound insulation effect; This wallpaper is suitable for creating a quiet environment in bedrooms, offices, and living rooms
- Covers Wall Imperfections: foam wallpaper roll helps conceal cracks, holes, stains, and uneven surfaces without complex preparation; The matte white finish refreshes old walls and suits bedroom, living room, kitchen, bathroom, and rental wall renovation
- Large Coverage and Easy Care: 19.7 in x 16.4 ft wallpaper roll covers about 26.9 sq ft, suitable for large wall areas; Waterproof and stain resistant surface allows easy cleaning with a damp cloth, designed for long term use without peeling or discoloration
How to choose and apply a product
- Identify the sound path. Decide whether the issue is airborne sound through a partition, vibration carried by the structure, impact noise, or reverberation inside the room. A wall coating is most relevant to panel damping, not every type of noise problem.
- Inspect the assembly and the leaks. Note the wall substrate and construction, and check the edges, openings, and adjacent building elements. A coating claim cannot account for sound bypassing the wall through gaps or flanking paths.
- Compare installation demands. Check achievable dry-film thickness, number of coats, stated coverage, drying and curing time, and required equipment. Follow the product’s own application instructions; a coating applied thinner than specified should not be assumed to deliver the published result.
- Read test claims in context. Look for the thickness, frequency, assembly, and test standard. The ISONEM figures and Coat of Silence STC claim describe different contexts and are not directly comparable.
- Match the solution to your capacity. For wallboard, start with a wallboard-specified coating such as QuietCoat. Consider a multi-component system only if you can meet its material, labor, and application requirements.
- Decide whether paint is enough. If the goal is substantial isolation, assess whether sealing, added mass, decoupling, or absorptive treatment is needed rather than relying on a coating alone.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
