Have a question and can't find the answer?

Have a question you couldn't find the answer to on any of our pages? Ask your question directly below:

Sound Damping Compound Data Sheet

| More

sound damping compoundVBD10 Damping Compound is a water based visco-elastic damping compound that reduces structure borne vibration in a variety of materials. By imparting vibration damping and a shift in the dominant frequency, the resulting noise reduction provides a means of improving the noise transmission loss in many applications.

VBD10 Damping Compound improves fatigue life of treated surfaces. It is tough, durable and paintable and is easily applied with trowel, brush or spray. This compound also meets FMVSS 302.

 

Product Data

  • Odor - Odorless when dry
  • Color - Beige
  • Density - Wet: 11.9 lb/us gal.
  • Weight per container - 5gal: 55 lbs.; 55gal: 540 lbs.
  • Flammability - Flame Spread Index: 2 (per ASTM E-162)
  • Flaming Mode (per ASTM E662) - Specific Optical Density after 1.5min: 1; Specific Optical Density after 4.0min: 25; Max Specific Optical Density: 140; Max Corr. Optical Density: 139
  • Non-Flaming Mode (per ASTM E662) - Specific Optical Density after 1.5min: 1; Specific Optical Density after 4.0min: 3; Max Specific Optical Density: 132; Max Corr. Optical Density: 132

 

Applications
  • Bus, rail and marine transportation
  • Fan and blower housings
  • Duct work
  • Bins
  • Chutes
  • Hoppers
  • Machines guards
  • Stadium seating
Acoustical Performance
Coverage in Sq.Ft per Gallon
1/8"
 40 25 20
3/16" 30 20 15
Thickness when Dry
 Spray Brush Trowel
1/16"
 50 35 .7625

 

 

 

Typical Properties of VBD-10
  • Color: Light Grey or Tan
  • Total Solids: 62%
  • Viscosity: Paste
  • Wet Density (g/cm3): 1.43
  • Dry Density (g/cm3): 1.73
  • Wet Density (lb / US gal): 11.9
  • Wet Density (lb / ipm. gal): 14.3
  • Thermal conductivity (BTU in/hr ft2 °F) 2.1
  • Flash Point: None
  • Hardness, shore D: 58
  • Thickness, in: N/A
  • Thickness, mm: N/A
  • Standard sheet size, in: N/A
  • Standard sheet size, cm: N/A
  • Surface weight, lb/ft2: N/A
  • Surface weight kg/m2: N/A
  • Resistance to Fungus (ASTM G-21 rating): 0 - No attack and no evidence of discoloration
Resistance to Two Day Immersion

The resistance of VBD-10 to immersion in various substances is shown below. While there was no actual degradation, there was a swelling or softening. However, after being allows to dry at room temperature for a few days, complete recovery occurred.
  • Diesel Fuel: Excellent
  • Mineral Spirits: Excellent
  • Lubricating Oil: Very Good
  • Gasoline: Fair
  • Toluene: Fair
  • Methanol: Fair
  • Water: Fair

 

Sound Transmission Loss

The application of VBD-10 to mechanical structures alters the structural vibration in a significant and desirable manner which increases the transmission loss of the structure. Three main alterations in the structural vibration occur: The resonant frequency of the structure vibration is shifted to a lower value and resonant vibration amplitude is decreased. The mass of the structure is increased. The vibrating structure is viscously damped.

 

VBD-10 may be combined with other acoustical materials to achieve sound absorption as well as sound transmission loss. In these applications, sound is absorbed within a space and the transmission of energy from one space to another is reduced. The amount of sound absorption and transmission loss may be designed to achieve nearly any desired control of the sound environment. Some calculated values of transmission loss (random incident sound) for various coating thicknesses of VBD-10 on 1/16" aluminum plate are presented in Fig. 1. Some calculated values of transmission loss (random incident sound) for various coating thicknesses of VBD-10 on a 1/16" steel plate are presented in Fig. 2.

sound damping STC