Sound absorber materials
Absorbing materials are integral to the construction of technical and industrial equipment.
We suggest: with average density (from 30 to 50 metre cubic) and with high-density (from 80 to 180 kg per metre cubic) non-flammable polymers on the basis of elastic and a second layer made from foamed polyurethane, siliceous fibers for facial coverings of non-flammable and waterproof (aluminum foil, glass tissue) materials, profiled in the form of the "Wave" or "Pyramid".
Some materials are formed so as to increase their durability against high temperatures, biological organisms, or radiation. Materials may have a glue layer to facilitate assembly.
Thickness: 3-400 mm, dimensions of sheets not more than 2000х2000 mm.
As an added service, we provide assembled sets cut to the specifications of the customer. The acoustic absorption coefficients on different wavelengths according to thickness and solidity of the material are given in the table of acoustic absorption. The coefficients were received at the metering on the installation "tube of Kundt.” These materials are effective at a frequency range higher than 300 Hz.
These materials are intended for increasing the soundproof characteristic of internal surfaces of cases, boxes, and other high noise equipment. If necessary, materials with 80% effectiveness at frequencies of 150-250 Hz may be developed.