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Silent Running (1 gallon)

36 in stock



Here’s a list of things that vibrate: Your blender mixing your morning smoothie, your phone lighting up with three missed calls from your mother and a construction worker’s drill.

Now, here’s a list of things that shouldn’t: Your car, the ground beneath your feet and your walls.

While some objects are made for vibration, your wall isn’t one of them. Don’t let unwanted sound cause noisy distractions and vibration within your building. Silent Running SR-500 provides you with the solution necessary to ensure peace and serenity.

Soundproof Coating Designed to Eliminate Unwanted Noise

Silent Running SR-500 is a high-performance coating specially engineered to eliminate unwanted pesky noise and vibrations. SR-500 works by converting noise energy and vibrations into a low-grade heat, which is then dissipated throughout the applied surface.

Offered in a conveniently sized gallon tub, you’ll have enough coating to fulfill a smaller sized project. Our silent running coating is also easy to reorder without making a bulkier purchase. Oftentimes, one gallon will suffice for touch-ups. Our Silent Running SR-500 1 gallon supplies enough liquid to cover roughly 40 square feet. Simply use a brush or painting roller for simple, smooth application.

If you’re looking to prevent noise disturbances and vibration, you want to do it right. Our Silent Running SR-500 soundproof coating won’t chip or crack, even when the surface applied to expands, bends or flexes — that’s quality assurance. It’s simple to apply out Silent Running SR-500 coating, too. You won’t have to suffer harsh smells, spills are easy to clean up with soap and water and application occurs faster than other traditional methods.



Dimensions 1 Gallon
Weight 15 lbs.
Coverage 40 sqft./gallon @ 0.035″ dry
Quantity 1 pail
Availability Usually ships in 7-10 business days


Silent Running SR-500 is a high performance coating specifically designed to eliminate unwanted sound and vibration. SR-500 works by converting noise energy and vibrations into a low-grade heat, which is then dissipated throughout the applied surface.

Product Availability

Available Sizes

Hear the Difference

Hear how Silent Running dampens sound and vibration in our sound test video!

Silent Running Sound Test Video

Features / Benefits

  • General Properties: SR-500 is water-based, non-toxic and VOC-compliant. There are no harsh smells. Before curing, it can be cleaned up with water.
  • Adhesion: SR-500 is designed as a “permanent” coating. The product has excellent adhesion to all metal, fiberglass, wood and most plastic surfaces. Proprietary components are added as “adhesion promoters” to help ensure it’s permanent adhesion. Adhesion is not affected by harsh cold or extreme heat. SR 500 can withstand temperatures from -30F up to 250F.
  • Durability: Although SR-500 dries to a hard surface, it retains excellent elongation. SR-500 will not chip or crack with any expanding, flexing or bending of the substrate. SR-500 cures virtually waterproof and is resistant to gas, oil and most chemicals.
  • Flammability: SR-500 is non-flammable. Should the product come into contact with flame, it is self-extinguishing.
  • Safety: Because of its water-based formula, SR-500 meets or exceeds all environmental standards.
  • Application: SR-500 applies faster and more easily and penetrates where other traditional methods of damping cannot.
  • Clean Up: Spills and mistakes are easily taken care of with soap and water.

Made in the USA


Great for the Automotive Industry:

For automotive applications, SR-500 eliminates unwanted road and outside noise and vibration, offering manufacturers, drivers and passengers a quieter, more comfortable driving experience.

  • Door Liners
  • Floor Pan Liners in Automobiles
  • Trunk Liners in Automobiles

Great for the Construction Industry:

SR-500 liquid sound damping products are perfect for quieting down noisy machinery including motors, turbines, compressors, mounting brackets, sorting devices, chutes and hoppers, as well as, ductwork, bridges, tunnels and other OSHA applications.

  • HVAC Enclosures
  • Equipment Enclosures
  • Any Sheet Metal Enclosure

Great for the Marine Industry:

SR-500 is lightweight, waterproof, resists chipping and corrosion and bonds permanently to your vehicle, making it the perfect solution for creating a quiet environment.

  • Hatch Cover Liner
  • Engine Compartment Liner
  • Hull Liner

Technical Data:

  • Color: Light Grey
  • Odor: No odor after curing
  • Density: 1350 kg/m3
  • Solid Content: Approx. 73%
  • Viscosity: 400+/-100 mPas
  • Flash Point 200°F (liquid) IS SELF EXTINQUISHING
  • Meets or exceeds FRA ASTM E662 for smoke density and E162 for flame spreadability.
  • Clean up: Water while wet
  • Apply at 60°F – 110°F
  • Layer Thickness: 0.020” wet/coat
  • Coverage 40 sqft/gal @ 0.035” dry
  • Storage Temp: Do not freeze
  • Shelf Life: One year

Installation Details

Tools Needed: Spray Gun, Roller or Brush

Materials Needed: None

The surface must be free from grease, dirt or rust. Lightly sand for better adhesion. The drying time at room temperature is approximately 30 minutes to 1 hour (depending on layer-thickness and relative humidity) but can be improved by the use of low heat and air movement. The curing process consists of two (2) steps. The water will dissipate during the first hour (product becomes dry to the touch), which will be followed by the final curing of the polymer. The second curing process takes approximately 24 to 48 hours. 2 coats are recommended.

"The times I talked with you on the telephone and corresponded through email you have been very helpful and efficient. I would highly recommend Soundproofcow.com to anyone!" S. CIMINO, LA