# Dayin PET Panels > Factory-direct polyester fiber (PET) acoustic panels from Foshan, China, for commercial interiors. Inquiry-first supply: no online checkout and no published prices. Dayin PET Panels is the dedicated PET product site of Dayin Acoustics Co., Limited (广东省大音声学科技有限公司), also known as DAYIN, Dayin Acoustics, and 大音声学. The company was founded in 2014 and manufactures at No. 32, Chishan Avenue, Lishui Town, Nanhai District, Foshan City, Guangdong Province, China. This site does not replace the broader official brand site at https://dayinacoustics.com. ## Key catalog facts - Material: 100% polyester fiber (PET). The product literature describes a blend of low- and high-melting-point polyester fibers that is tumbled, needle-punched, and baked into a high-density fibrous sheet. - Standard flat sheets: 1220 × 2420 mm (2 × 8 feet). Maximum width 3000 mm. - Thickness: 9 mm or 12 mm as standard; custom 2 mm–48 mm. - Density (data sheet): 1000 / 1350 / 1700 gsm, or customized. - Colors: color card codes DY-01 through DY-72. Data sheets also list “48 colors / customized.” Official English color names are not printed on the card. Request physical samples before locking a specification. - Catalog performance figures (NRC 0.8–0.9 on the product table; eco classification E0; fire resistance Class B on the product table; a brochure overview also describes NRC reaching more than 0.8 and flame-retardant Grade B1; CE, SGS, and GTS logos appear on the brochure) are quoted from Dayin product literature. They are not a substitute for a current test report. Request current test reports for a specific thickness, density, and finish before specifying a project. - Installation (2026 catalog PET page): glue and gun nails. - Typical uses listed on the PET product page: office, school, theatre, exhibition hall. Sheets can also be adapted into suspended panels, screens, table-top partitions, and acoustic furniture. The 2026 company About page also names stadiums, meeting rooms, recording and broadcasting rooms, hotels, and entertainment venues. ## Products - [PET acoustic panels](https://dayinpetpanels.com/products/pet-acoustic-panels.html): standard 1220 × 2420 mm sheets in 9 or 12 mm, custom thickness 2–48 mm. - [Grooved PET panels](https://dayinpetpanels.com/products/grooved-pet-panels.html): 2400 × 1200 mm; design codes S1-1 to S1-12 and S2-1 to S2-6. That catalog page does not repeat NRC, density, or fire figures. - [Perforated panels and partitions](https://dayinpetpanels.com/products/perforated-pet-panels.html): cut-out patterns for walls and hanging screens. Sizes, NRC, and fire grades are not printed on that page; no model numbers are printed next to the drawings. - [Waffle and baffle ceilings](https://dayinpetpanels.com/products/ceiling-systems.html): custom-size hanging modules in high-density polyester fiber (waffle grids, organic lattice, linear fins, stacked discs, wave baffles, rectangular baffles). - [3D polyester diffusers](https://dayinpetpanels.com/products/3d-diffusers.html): block tiles 500 × 500 × 50 mm; arch tiles 250 × 500 × 50 mm; star/cross tiles 200 × 200 × 35.8 mm; fluted wall panels catalog length 2400 mm. - [Color range DY-01–DY-72](https://dayinpetpanels.com/products/colors.html) ## Contact - Commercial contact: CEO Alan Zhong - Email: Alan@dayinacoustics.com - WhatsApp / mobile: +86 13925060326 (https://wa.me/8613925060326) - Quote form: https://dayinpetpanels.com/contact.html - Factory address: No. 32, Chishan Avenue, Lishui Town, Nanhai District, Foshan City, Guangdong Province, China ## Machine-readable files - [Full catalog notes](https://dayinpetpanels.com/llms-full.txt) - [Structured product catalog (JSON, no prices)](https://dayinpetpanels.com/catalog.json) - [Sitemap](https://dayinpetpanels.com/sitemap.xml) - [About the manufacturer](https://dayinpetpanels.com/about.html) - [Applications](https://dayinpetpanels.com/applications.html) ## Related official site - [Dayin Acoustics](https://dayinacoustics.com)