Colored PET Acoustic Wall Panels Our professional acoustic team developed 45 new PET colors last year, these colors are nice looking and sell very well in the market, we also customize special colors for our clients, and we are flexible and professional in manufacturing our PET Acoustic Panels. Product Description Colored PET (polyethylene terephthalate) acoustic panels are an innovative solution for managing sound in various environments. They are made from recycled PET materials, often sourced from plastic bottles, which makes them an eco-friendly choice.