2" square of acoustic polyether foam

Soundfoam M

Soundfoam M (also known as M foam) is engineered to provide consistent acoustic performance in demanding environments. Its fine, uniform cell structure enables efficient sound absorption while maintaining durability under temperature changes, vibration, and humidity.

Acoustic Performance

Soundfoam M absorbs sound by converting sound wave energy into heat through its open-cell structure. Tested  to ASTM E1050, it delivers reliable noise reduction across mid- and high-frequency ranges.

When used with facings  or barrier  materials, Soundfoam M also improves low-frequency performance by lowering coincidence frequency.

Why Choose Soundfoam M

  • Broad frequency sound absorption  
  • Lightweight, flexible, and durable  
  • Moisture and chemical resistance  
  • Available with adhesive backing  
  • Suitable for OEM and retrofit applications 

 

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Download technical data sheet

Technical information

Product attributes

  • Open cell, polyether-based urethane foam
  • Maximum absorption with minimal thickness
  • Density: 1.8 ± 0.2 lb/ft³  
  • Operating temperature: -43°C to 110°C (-45°F to 230°F)
  • Tensile strength: ≥14.5 PSI
  • Compression set: <10% 
  • Excellent humidity and chemical resistance
  • Available with decorative and protective films & facings

Performance & compliance

  • Tested to ASTM E1050 for sound absorption performance 
  • UL 94 HF1 fire rating
  • MVSS-302 
  • FAR 25.853(b) 
  • Meets MIL-PRF-26514G (Type I, Class 2, Grade C)

Configuration & options

Installation methods

  • Pressure-sensitive adhesive  (PSA) for peel-and-stick  
  • Mechanical fastening for removable panels 
  • Custom die-cut parts for easy integration
  • Suitable for layered acoustic systems 

Typical applications

  • Trucks, buses, construction, mining, agriculture, military transport, and emergency vehicles
  • Gensets, conveying systems, HVAC, compressed air
  • Semiconductors and telecommunications equipment
  • Industrial building spaces
  • EV charging stations and battery storage
  • Medical equipment