Composite: Foam Damping Sheet
Foam Damping Sheet (FDS) is a composite material that combines a viscoelastic damping sheet (GPDS, General Purpose Damping Sheet) with a flexible polyester urethane acoustical foam. It is available in sheet form and standard foam thickness. It can be supplied with pressure sensitive adhesive backing.
GPDS absorbs vibration energy generated by the summation of modal responses in metallic and non-metallic thin gauge panels. When applied to either side of a stiff vibrating surface such as metal, plastic, or wood, it will increase structural damping and effectively reduce structural modal responses.
The acoustical foam is an acoustic quality, open cell, flexible polyester based polyurethane foam. It is based on unique urethane foam formulation to provide a uniform cell structure, high physical properties, excellent sound absorption, good heat, humidity, flame, and chemical resistance.
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Technical information
Product attributes
- Dual purposes of vibration damping & acoustic absorption
- Available in die-cut parts, sheets, and kits
Typical applications
- Trucks, buses, construction, mining, agriculture, military transport, and emergency vehicles
- Gensets, conveying systems, HVAC, compressed air
- Semiconductors, telecommunications equipment, EV charging stations and battery storage
- Medical equipment