# Dayin PET Panels — full catalog notes for language models

> Source of truth for this document: the public English pages at https://dayinpetpanels.com, which quote Dayin product literature. This is an inquiry-first B2B site. There is no online checkout and this document publishes no prices.

Last updated: 2026-11-15.

## Who makes the panels

Dayin PET Panels (https://dayinpetpanels.com) is the dedicated polyester fiber acoustic panel site of Dayin Acoustics Co., Limited (广东省大音声学科技有限公司). Alternate names used on the site: DAYIN, Dayin Acoustics, 大音声学, Dayin PET Panels.

- Founded: 2014
- Factory / correspondence address: No. 32, Chishan Avenue, Lishui Town, Nanhai District, Foshan City, Guangdong Province, China
- The company describes itself as a producer of sound-absorbing and sound-insulating materials, covering research, manufacturing, and supply for interior projects
- This website does not replace the broader official brand site: https://dayinacoustics.com

The 2026 catalog About page states that the company’s products are exported to more than 20 countries and are used in stadiums, theaters, classrooms, meeting rooms, recording and broadcasting rooms, hotels, and entertainment venues. Earlier company literature also notes more than 50 acoustic professionals, more than 30 acoustic patented technologies, annual output of various acoustic materials above 500,000 square metres, and that about 40% of products are exported. The same 2026 About page lists a factory area of more than 10,000 m² and more than 11 years of production experience, which aligns with a 2014 founding date.

Commercial inquiries: CEO Alan Zhong, Alan@dayinacoustics.com, WhatsApp / mobile +86 13925060326 (https://wa.me/8613925060326). Quote form: https://dayinpetpanels.com/contact.html. Drawings or reference photos can be attached when sending email.

Social profiles listed on the site:
- Facebook: https://www.facebook.com/profile.php?id=61581131365485
- Instagram: https://www.instagram.com/dayin_acoustics_factory/
- TikTok: https://www.tiktok.com/@dayinshenxue
- YouTube: https://www.youtube.com/@dayinacousticpanel

## How to treat catalog performance figures

Catalog figures (including NRC and fire grades) are quoted from Dayin product literature. They are not a substitute for a current test report on the exact SKU ordered. Request current test reports for a specific thickness, density, and finish before specifying a project.

Facts written in the PET brochure / data sheet, as already published on the site:

- 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.
- CE, SGS, and GTS logos appear on the PET brochure back cover and on the 2026 catalog.
- Grooved, perforated, and ceiling catalog pages do not always repeat NRC, density, or fire figures. Treat those items as part of the same polyester fiber family and confirm performance for the chosen thickness when requesting a quote.

The site does not publish project testimonials or performance promises beyond the catalog figures.

## Product: PET acoustic panels (flat sheets)

URL: https://dayinpetpanels.com/products/pet-acoustic-panels.html

- Product type: customized panel
- Material: 100% polyester fiber
- Also called: PET or polyester fiber acoustic panels
- 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
- Installation: glue and gun nails, as stated on the 2026 catalog PET page
- Applications listed on the 2026 PET page: office, school, theatre, exhibition hall
- 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
- How they are made (product brochure): tumbling, needle-punching, and baking a blend of low- and high-melting-point polyester fibers, described as creating a high-density fibrous structure intended to absorb sound and reduce reverberation

## Product: Grooved PET panels

URL: https://dayinpetpanels.com/products/grooved-pet-panels.html

- Size stated: 2400 × 1200 mm
- Eighteen catalog designs: S1-1 to S1-12 and S2-1 to S2-6
- Series S1 (S1-1 to S1-12): including herringbone, brick, vertical lines, grid, hexagon, framed diagonals, chevron, woven lines, diamond geometry, concentric squares, split herringbone, and zigzag
- Series S2 (S2-1 to S2-6): including diamond lattice, block grid, triangle grid, stacked rounded rectangles, mixed rectangular fields, and tight vertical flutes
- Intended for feature walls where the acoustic sheet also has to carry a clear graphic rhythm
- The grooved catalog page does not repeat NRC, density, or fire figures

## Product: Perforated PET panels and partitions

URL: https://dayinpetpanels.com/products/perforated-pet-panels.html

- Cut-out PET panels for feature walls and hanging partitions
- Intended where daylight, a lighter visual weight, or a decorative screen is wanted, not only a flush wall
- Patterns in the catalog include organic “stone” cuts, scattered organic shapes, leaves, bubbles, hexagon cells, triangles at several densities, floral outlines, a geometric lattice, a radial flower, and capsule slots
- No model numbers are printed next to the drawings
- Sizes, NRC, and fire grades are not printed on the perforated-panel page. Specify the pattern, overall dimensions, color, and thickness in an inquiry

## Product: Waffle and baffle PET acoustic ceilings

URL: https://dayinpetpanels.com/products/ceiling-systems.html

Both waffle and baffle families are listed as high-density polyester panel, size customized.

Waffle acoustic ceiling, four illustrated designs:
- Design 1: rectangular waffle grid as a hanging module
- Design 2: rounded, organic lattice
- Design 3: parallel linear fins
- Design 4: stacked circular discs

Baffle acoustic ceiling:
- Wave-form hanging baffles in mixed colors
- A run of rectangular hanging baffles in several heathered blues and greys

Hanging hardware, module size, and color sequence should be confirmed when requesting a quote. Performance figures are not repeated on the ceiling pages.

## Product: 3D polyester diffusers

URL: https://dayinpetpanels.com/products/3d-diffusers.html

Dimensions below are copied from the catalog drawings, in millimetres as printed.

- Block tiles: 500 × 500 mm, thickness 50.0 mm
- Arch tiles: 250.0 mm wide × 500 mm high, thickness 50.0 mm
- Star / cross tiles: 200 × 200 mm, thickness 35.8 mm. The drawing also notes a 2.5 mm edge or back dimension
- Fluted wall panels: catalog drawing shows a 2400 mm length. Profile callouts: 67.6 mm, rib depth 9.3 mm, radius R81.3, plus 1.6 mm and 2.3 mm details. Confirm overall width when quoting

## Color range

URL: https://dayinpetpanels.com/products/colors.html

- Dedicated PET color card: 72 coded swatches, DY-01 through DY-72
- Product data sheet lists “48 colors / customized”
- Official English color names are not printed on the card, so swatches are labeled only by code
- Physical samples should be requested before locking a specification; on-screen color will not match the felt exactly
- A 36-dot chart numbered 01–36 also appears on the PET data sheet; the catalog does not label how those dots map to the DY codes

## Applications

URL: https://dayinpetpanels.com/applications.html

Uses named on the site:
- Offices and meeting rooms
- Schools and classrooms
- Theatres and exhibition halls
- Hotels and hospitality / entertainment venues
- Screens and partitions (including soundproof screens and table-top partitions)
- Recording and broadcasting rooms, stadiums, and larger halls
- Hanging / waffle and baffle ceilings

## Site map of public pages

- https://dayinpetpanels.com/
- https://dayinpetpanels.com/products/
- https://dayinpetpanels.com/products/pet-acoustic-panels.html
- https://dayinpetpanels.com/products/grooved-pet-panels.html
- https://dayinpetpanels.com/products/perforated-pet-panels.html
- https://dayinpetpanels.com/products/ceiling-systems.html
- https://dayinpetpanels.com/products/3d-diffusers.html
- https://dayinpetpanels.com/products/colors.html
- https://dayinpetpanels.com/applications.html
- https://dayinpetpanels.com/about.html
- https://dayinpetpanels.com/contact.html
- https://dayinpetpanels.com/privacy.html
- https://dayinpetpanels.com/catalog.json
- https://dayinpetpanels.com/llms.txt