Polyester fiber PET acoustic panels
The core Dayin PET sheet: 100% polyester fiber, made for walls and other interior fittings. Use this page when you are specifying standard panels or a custom cut of the same material.
What the catalog specifies
Dayin describes these as customized polyester acoustic panels, also called PET or polyester fiber acoustic panels. Thicknesses of 9 mm and 12 mm are listed as typical, with further thicknesses available when a project needs them.
The 2026 product page also notes that the same material can be used as a straightforward wall covering or adapted into suspended panels, soundproof screens, table-top partitions, and acoustic furniture.
Product specifications
Figures below are taken from the Dayin Polyester Fiber Acoustic Panel data sheet, with overlapping size and installation notes from the 2026 Acoustic & Wall Panel catalog. They are not a substitute for a current test report on the exact SKU you order.
| Product type | Customized panel |
|---|---|
| Material | 100% polyester fiber |
| Standard size | 1220 × 2420 mm (2 × 8 feet) |
| Maximum width | 3000 mm |
| Thickness | 9 / 12 mm standard; custom 2 mm–48 mm (2026 catalog lists 9 / 12 mm / customized) |
| Density | 1000 / 1350 / 1700 gsm, or customized |
| Color | 48 colors on the data sheet, or customized. A separate color card shows 72 codes, DY-01 to DY-72. |
| NRC | 0.8–0.9 on the product table. The certification overview states “NRC reaches more than 0.8”. |
| Eco classification | E0. The brochure links this to an SGS E0 / HCHO report and describes the materials as meeting standards that are free of formaldehyde. |
| Fire resistance | Class B on the product table. The flame-retardant overview describes Fire Retardant Grade B1 and shows an SGS report thumbnail. Please request the report that applies to your thickness and density. |
| Installation | Glue and gun nails, as stated on the 2026 catalog PET page. |
| Applications listed | Office, school, theatre, exhibition hall (2026 PET page). |
CE, SGS, and GTS logos appear on the PET brochure back cover. We can share available test reports on request; we do not publish grades here that are not written in the catalog.
How they are made
According to the product brochure, the sheets are made by tumbling, needle-punching, and baking a blend of low- and high-melting-point polyester fibers. That process is described as creating a high-density fibrous structure intended to absorb sound and reduce reverberation.
If you are comparing densities or thicknesses for a room, tell us the target use and we will recommend from the published 1000 / 1350 / 1700 gsm range or discuss a custom weight.