Noise from machines, motors, fans, and other technical equipment often results from a combination of vibrations and sound reflected off hard surfaces. Acoustic insulation made of foam plastic can be used to absorb some of the sound energy and reduce sound reflections in, for example, machine enclosures, technical rooms, and other structures.
At Cabseal, we manufacture acoustic insulation made from various types of foam plastic. The material, thickness, and design can be customized based on where the insulation will be installed and the type of acoustic environment in which it will be used.
Right from the startHow Acoustic Insulation with Foam Plastic Works
When sound waves strike a hard surface, a large portion of the sound is reflected back. An absorbent foam material works differently. The sound waves can penetrate the material’s structure, where some of the sound energy is converted and dampened instead of being directly reflected back.
This makes foam plastic particularly useful on the inside of enclosures and other spaces where you want to limit sound reflections near the sound source itself.
Thickness and texture affect sound absorption
Not all foam plastics absorb sound in the same way. The material’s cell structure, density, and thickness affect which sound frequencies are absorbed most effectively. A thin foam plastic can therefore serve a different purpose than a thicker material, even if the materials are otherwise similar.
It is also important to distinguish between sound absorption and sound insulation. Foam plastic is primarily used to absorb and dampen sound within a structure. If, on the other hand, the sound is caused by vibrations that travel through the structure, vibration damping and structure-borne sound damping may be necessary.
Materials we use to manufacture acoustic insulation
The Right Materials for the Right NeedsAcoustic insulation tailored to the structure
The placement of the material has a significant impact on the results. In a machine enclosure, for example, the foam can be shaped to fit the walls and openings in order to dampen sound near the source.
At Cabseal, we can process foam plastic into various shapes and sizes. Foam plastic is also used for purposes other than insulation, and among our foam plastic products, you’ll find solutions for filtration, shock absorption, and technical protection, for example.
Do you need acoustic insulation for a machine or other piece of equipment? Contact us, and we'll help you find the right solution.
