Acoustic | Sound-Absorbing PET Panel | Diagonal Line Relief Pattern | 300x300x9mm | Black
Code: ES-XTX-339Acoustic PET fibre panel with diagonal rib relief is intended to reduce room echo, reverberation and some unwanted sound reflections. The panel is made of pressed PET polyester fibre and can be used as a functional and decorative acoustic finish for walls or ceilings.
The panel surface features parallel diagonal ribs and recesses between them. The repeating lines create a slat-style pattern, a directional geometric surface and a subtle three-dimensional effect. Panel dimensions – 300×300 mm, specified thickness – 9 mm.
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Acoustic sound-absorbing PET panel – 300×300×9 mm, diagonal rib relief, slat-style linear pattern, black
Acoustic PET fibre panel with diagonal rib relief is intended to reduce room echo, reverberation and some unwanted sound reflections. The panel is made of pressed PET polyester fibre and can be used as a functional and decorative acoustic finish for walls or ceilings.
The panel surface features parallel diagonal ribs and recesses between them. The repeating lines create a slat-style pattern, a directional geometric surface and a subtle three-dimensional effect. Panel dimensions – 300×300 mm, specified thickness – 9 mm.
Important information about the intended use:
The PET acoustic panel is intended to improve room acoustics by reducing echo, reverberation and some sound reflections. It does not provide complete sound insulation between adjacent rooms and does not replace a sealed, massive and multilayer sound-insulating construction.Important information about thickness:
The specification states a 9 mm thickness. Because the panel has a profiled surface, it is recommended to clarify before publishing the product whether 9 mm is the total thickness up to the highest point of the rib or the thickness of the main PET panel.Important information about flammability:
The supplied information describes the panel as flame-retardant, but no specific reaction-to-fire class, test standard or certificate is stated. Where fire-safety requirements apply to a project, the test documentation for the specific product must be consulted.Important composition information:
The supplied information states that up to 60% of the panel composition may be made from recycled PET bottles. The actual recycled-material content may depend on the production batch.Main purpose:
The panel is installed on walls or ceilings when it is necessary to reduce room echo, soften sound reflections from hard surfaces, improve speech intelligibility and create a decorative acoustic surface with diagonal lines.Dimensions
300×300 mmSpecified thickness
9 mmMaterial
PET polyester fibreSurface profile
Diagonal ribsPattern type
Slat-style, linearColour
BlackAcoustic operating principle
When sound waves reach the porous PET polyester fibre structure, part of their energy enters the interwoven fibres and is attenuated within the material. This helps reduce the intensity of sound reflections returning from walls or ceilings and the perception of echo in the room.
The diagonal rib relief divides the completely flat surface into repeating directional zones. The parallel raised lines and recesses give the surface geometric depth, while the PET fibre structure performs the main sound-absorbing function.
The actual acoustic result depends on the area covered with panels, room size, wall and ceiling materials, furniture, installation location, PET fibre density, air gap and sound frequency.
Sound absorption and sound insulation are not the same:
The PET acoustic panel helps reduce sound reflections generated inside the room, but it does not block all sound travelling through the wall. Sound insulation requires sealed, massive and properly designed wall, ceiling or floor constructions.Diagonal rib relief
The panel surface features evenly spaced parallel diagonal ribs. The narrower grooves between them create a repeating profiled surface.
- creates a clear rhythm of diagonal lines;
- divides the continuous surface into parallel strips;
- gives the panel a directional geometric profile;
- allows the pattern direction to be changed by rotating the panel;
- suitable for continuous or alternating-line compositions;
- complements modern, minimalist and technical interiors.
Slat-style diagonal-line pattern
The parallel diagonal strips visually resemble narrow slats, so the surface may be described as a slat-style diagonal-line pattern.
The panel is not made from separate wooden, metal or plastic slats. The slat effect is created by a continuously formed PET fibre surface profile.
Adjacent panels can be installed in the same direction to create a continuous wall of diagonal lines. Their orientation can also be alternated to create V-shaped, zigzag or other geometric compositions.
Important information about the name:
The term “slat-style pattern” describes the appearance of the panel. It is not a construction made from separate slats — the entire surface is formed from a single PET fibre panel.Directional linear surface
The repeating diagonal ribs create a parallel directional-line pattern. It gives the surface a sense of movement and allows the wall composition to be changed visually according to the installation direction of the panels.
The panel can be installed in several directions:
- with all panels oriented in the same diagonal direction;
- with adjacent panels oriented in opposite directions;
- to create a V-shaped or herringbone-style composition;
- by alternating diagonal, vertical and horizontal lines;
- to create a freely arranged geometric wall pattern.
Recommended full description:
Diagonal rib relief with a slat-style parallel-line patternPET polyester fibre construction
The panel is made from pressed PET polyester fibre. It is more rigid and retains its shape better than soft polyurethane foam.
- porous fibre structure for absorbing part of the sound energy;
- rigid, shape-retaining construction;
- diagonal rib relief;
- slat-style linear pattern;
- the pattern direction can be changed by rotating the panel;
- up to 60% of the composition may consist of recycled PET material;
- the black colour suits modern and technical interiors.
Recycled PET material:
The supplied information states that up to 60% of the panel composition may be made from recycled PET bottles. In this way, some used plastic can be returned to the production cycle and used in a new product.Technical specifications
Product type Embossed acoustic PET fibre panel Purpose Reduction of echo, reverberation and some sound reflections Panel dimensions 300×300 mm Specified thickness 9 mm Area of one panel 0.09 m² Material PET polyester fibre Surface profile Parallel diagonal ribs and the recesses between them Pattern type Slat-style diagonal-line pattern Pattern direction Diagonal; adjustable by rotating the panel Colour Black Recycled material Up to 60% of the panel composition may consist of recycled PET Installation location Walls and ceilings Operating environment Dry indoor spaces Flammability properties Described as flame-retardant; class and standard not specified Toxicity properties Described as non-toxic in the supplied information Sound absorption coefficient Not specified in the supplied specification Main features
- PET fibre structure — for absorbing part of the sound energy.
- Echo reduction — to reduce the perception of reverberation in the room.
- Diagonal rib relief — for a profiled geometric surface.
- Slat-style pattern — for modern wall finishing.
- Parallel-line design — for a directional composition.
- Adjustable pattern direction — the panel can be rotated.
- Ability to create V-shaped and zigzag patterns.
- Modular 300×300 mm format — for covering larger areas.
- Up to 60% recycled PET — depending on the production batch.
- Can be installed on walls or ceilings.
Where is it used?
- In offices — to improve acoustic comfort.
- In meeting rooms — to reduce echo.
- In home workspaces — to improve conversation clarity.
- In recording rooms — to control some sound reflections.
- In broadcasting rooms — to reduce echo captured by the microphone.
- In teaching rooms — to improve speech intelligibility.
- In hotels — for decorative acoustic finishing.
- In restaurants and cafés — to reduce the perception of reverberation.
- In home cinema rooms — to soften some sound reflections.
- In corridors and shared areas — for geometric wall finishing.
Calculating the required quantity
The projected area of one 300×300 mm panel is 0.09 m². Theoretically, approximately 11.1 panels would be required to cover 1 m², so in practice it is recommended to allow 12 panels per square metre, excluding cutting and installation losses.
Number of panels Approximate area 1 pc. 0.09 m² 6 pcs. 0.54 m² 12 pcs. 1.08 m² 24 pcs. 2.16 m² 48 pcs. 4.32 m² Installation
- Prepare the surface. The wall or ceiling must be dry, clean and stable.
- Choose the line direction. Decide whether all diagonal lines will be oriented in the same direction.
- Plan the composition. The panels can be joined in one direction or installed with alternating orientations.
- Mark the position of the first panel. Use a spirit level or laser level.
- Use suitable adhesive or fasteners. They must be compatible with the PET fibre and the substrate material.
- Press the panel evenly. Do not compress or deform the profiled ribs.
- Align the panels with one another. The lines and gaps must form the selected composition.
- Check the fastening. The panels must not detach, bend or hang loosely.
Cleaning and maintenance
- Remove dust with a vacuum cleaner fitted with a soft, low-suction attachment.
- Clean dust accumulated in the recesses with a soft brush, moving along the lines.
- Do not press or deform the raised ribs.
- Do not use excessive water or spray cleaning products directly onto the panel.
- Do not use solvents, petrol or acetone.
- Keep away from open flames and strong heat sources.
Installation and use notes
- The panel is intended for dry indoor spaces.
- Do not use in locations exposed to direct water contact.
- The panel is not a complete sound-insulation system.
- The exact sound absorption coefficient is not stated.
- No verified reaction-to-fire class is stated.
- The claim that the panel is non-toxic must be evaluated against the product documentation.
- Keep away from open flames, sparks and hot surfaces.
- Unsuitable adhesive may change the panel colour or deform it.
- Cutting may produce uneven or frayed edges.
- The colour and surface texture may vary slightly between batches.
- The actual recycled PET content may vary.
- Secure and reliable fastening is required for ceiling installation.
FAQ – frequently asked questions
Is this a foam panel?
No. It is made from pressed PET polyester fibre, not polyurethane foam.What is the most accurate name for the surface profile?
The most accurate description is diagonal rib relief.Can it be called a slat-style pattern?
Yes. The raised parallel diagonal strips visually resemble narrow slats, but the panel is not made from separate slats.Is the term “linear pattern” appropriate?
Yes. Parallel diagonal lines repeat across the surface, so it may be described as a slat-style directional linear pattern.Can a herringbone or V-shaped pattern be created?
Yes. By orienting adjacent panels in opposite directions, a V-shaped, zigzag or herringbone-like composition can be created.What are the panel dimensions?
The panel size is 300×300 mm, and the specification states a thickness of 9 mm.How many panels are required per 1 m²?
In practice, it is recommended to allow approximately 12 panels per square metre.Does the panel provide complete sound insulation?
No. It improves room acoustics but is not a complete sound-insulation system between rooms.Can the PET panel be cut?
Yes. The panel can be cut with a sharp tool suitable for PET fibre, but care must be taken to preserve the shape of the profiled ribs.Can the panel be glued?
Yes, but an adhesive suitable for PET fibre and the substrate material must be used. It must not change the panel colour or deform it.Is the panel fire-resistant?
The supplied information describes it as flame-retardant, but no specific reaction-to-fire class or certificate is stated.Is the panel non-toxic?
The supplied information describes it as non-toxic. Where official confirmation is required, the product composition, emissions and safety documentation must be checked.Acoustic PET panel with diagonal rib relief and a slat-style linear pattern
The acoustic PET fibre panel is intended to absorb part of the sound travelling through a room and reduce reflections from walls and ceilings.
The parallel diagonal ribs create a slat-style directional linear pattern that gives the surface a sense of movement, geometric rhythm and modern relief.
The panels can be oriented in one direction or alternated to create V-shaped, zigzag, herringbone or other geometric compositions.
The pressed PET fibre construction is more rigid than soft foam and is suitable for decorative acoustic wall and ceiling finishing. Up to 60% of the panel composition may consist of recycled PET material.
The panel improves room acoustics but is not a complete sound-insulation system. For precise acoustic or fire-safety design, documentation relating to sound absorption, reaction to fire, material emissions and the total profile thickness must be checked.
Illustrative image may have been created using AI. The appearance of the product may differ slightly from the image shown. Please refer to the technical specification.This product is marked with the CE label, which confirms that it complies with all applicable European Union directives and regulations. CE marking is not just a formality – it is an important indicator of quality and safety, ensuring that the product has been properly assessed, tested, and can be safely used throughout the EU market.
CE certification means that the product has been evaluated according to the main criteria:
Safety requirements – ensures that the product does not pose a risk to the user or the environment
Electromagnetic compatibility (EMC) – the device does not interfere with other equipment and is resistant to external disturbances
Environmental standards – complies with current ecological and material usage requirements
Operational reliability – the product is suitable for long-term use according to its intended purposeCE marking allows this product to:
be legally supplied and used in all European Union countries
ensure a high level of quality and safety
be used in residential, commercial, and industrial environmentsThe CE mark is a declaration of the manufacturer’s responsibility, confirming that the product complies with all applicable standards and has been assessed according to EU legislation.
What does this mean for you as a buyer?
Safe use in everyday activities
Reliable performance and reduced risk of failure
Compliance with EU standards and requirements
Suitability for professional solutions
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