Melamine foam is a new type of foam with a three-dimensional grid structure with high open porosity. The material itself is flame retardant, high temperature stability and flexibility. It has excellent sound absorption, flame retardancy, heat insulation, moisture and heat stability, hygienic safety and good secondary processing properties. The length-to-diameter ratio of the grid is about 10 to 20, and its extremely high opening ratio characteristics (the opening ratio of Sisian melamine foam with a density of 8kg/M3 is as high as 97% or more). Sound waves can easily and efficiently enter the deep layers of the foam and transform into vibrations of the mesh that can be consumed and absorbed, and effectively eliminate the reflected waves, especially the absorption characteristics of low frequency noise.
The unique three-dimensional structure of the opening can effectively block the sound wave, and the noise reduction coefficient NRC=0.95, which exceeds most traditional materials.
The sound-absorbing melamine foam board (the mold covered with self-adhesive paper) is directly bonded to the complicated structure such as ceiling, glass, steel pipe and wall surface. The construction is simple, the structure is perfectly combined with the original building, and the construction time is greatly shortened. More importantly, a variety of shapes are available: normal, wedge, pyramid, egg, white and grey, perfect for designer designs. In terms of sound absorption, sound insulation, fire performance and environmental protection, melamine foam has the advantage that traditional audio materials can't match, and it has reached the original intention of the owner's voice upgrade.