PS Fluted vs WPC Fluted Wall Panels: A Detailed Comparison for Designers

Product-focused specification guide for interior designers, architects, and procurement professionals deciding between polystyrene fluted wall panels and WPC fluted wall panels.

Fluted wall panels are used to create vertical groove patterns on feature walls. Although two fluted products can look similar in a rendering, the material behind the surface changes the specification. PS polystyrene fluted wall panels are made from polystyrene with a UV surface film. WPC fluted wall panels are made from wood powder, PVC, and additives. These material differences affect handling, fire documentation, waterproofing, termite resistance, and the spaces where each panel can be specified with confidence.

This guide compares the LONGTE LT-PS PS Polystyrene Fluted Wall Panel with the LONGTE LT-WG WPC Fluted Wall Panel. Both reference models appear in the wall panel range of Haining Longtime Industry Co., Ltd., a manufacturer founded in 2003 with an 80,000 m² factory area, 220 employees, and an annual output of 8,000,000 units. The company exports about 85% of its products and serves markets such as the USA, India, the Philippines, UAE, Colombia, and South American countries.

Why material choice matters in fluted wall panel specification

The visible flutes are only one part of the panel. The substrate has to meet fire, moisture, handling, and durability expectations for the environment where it will be installed.

The two models compared here represent two different approaches to the same decorative language:

• LONGTE LT-PS is a lightweight fluted decorative panel with a polystyrene core and UV surface film. Its published specification is 150×2900mm, 10mm thick, with 5 flutes. It is listed as ultra-lightweight, waterproof, B1 fire-rated, and easy to install.
• LONGTE LT-WG is a 3D fluted wall cladding made from wood powder, PVC, and additives. Its published specification is 159×2900mm, 12mm thick, with an 8mm groove depth. It is listed as waterproof, termite-proof, and B1 fire-rated.

Fluted panels inside the broader wall panel market

The wall panel category continues to expand in global construction. Dataintelo estimated the global wall panel market at USD 32.4 billion in 2025 and projected it to reach USD 43.7 billion by 2033. Grand View Research estimated the global Wood Plastic Composites market at USD 8.89 billion in 2025, with a projected CAGR of 11.7% through 2033. Dataintelo also attributed approximately 42.3% of global wall panel demand to the Asia-Pacific region

For designers working outside Asia, the commercial signal is still relevant: the global market for wall panels is large enough to support distinct material systems. PS and WPC fluted panels are both part of that supply stream, but they should not be treated as interchangeable surface products.

Detailed solution: comparing the LONGTE LT-PS and LT-WG models

This comparison focuses on two catalog products. The first product is the LT-PS model, and the second is the LT-WG model. Both are used as interior decorative wall panels in fluted geometry

Figure 1: LONGTE LT-PS PS Polystyrene Fluted Wall Panel. Source: LONGTE product data.

LONGTE LT-PS: PS Polystyrene Fluted Wall Panel

The LT-PS model is defined in the product specification as a lightweight fluted decorative panel. Its material composition is polystyrene plus a UV surface film. Standard dimensions are 150mm by 2900mm, with a thickness of 10mm. The flute geometry is described as 5 flutes.

In the same specification, the LT-PS is described as ultra-lightweight, waterproof, easy to install, and B1 fire-rated. Its stated application spaces include TV backgrounds, bedrooms, hotels, and offices. This combination makes it relevant for projects where fast installation and lower handling weight are important design constraints.

Figure 2: LONGTE LT-WG WPC Fluted Wall Panel. Source: LONGTE product data.

LONGTE LT-WG: WPC Fluted Wall Panel

The LT-WG model is classified as a 3D fluted wall cladding. It is made from wood powder, PVC, and additives. The standard size is 159mm by 2900mm, with a thickness of 12mm and a groove depth of 8mm.

In the published specification, the LT-WG is described as waterproof, termite-proof, and B1 fire-rated. Its stated application spaces include living room TV backgrounds, hotel lobbies, and offices. The deeper 12mm profile and 8mm groove depth create a more pronounced surface geometry than thinner fluted profiles.

Step-by-step breakdown: how to choose between PS fluted and WPC fluted panels

Use the following steps as a practical specification filter before asking for samples or quotations.

1. Check the project’s fire requirement. Commercial interiors in many markets require a defined fire class. Both LT-PS and LT-WG carry a B1 fire-rating statement in their product data. For exact model coverage, ask LONGTE for the relevant test report and compare the report scope with the specified model.
2. Evaluate wall load and installation constraints. The LT-PS specification states that it is ultra-lightweight and easy to install. If the panel is going onto a lightweight partition or a retrofit wall where reduced load is a design goal, the LT-PS is the product whose data directly supports that goal. The LT-WG specification does not make an ultra-lightweight claim.
3. Compare the flute rhythm and depth. LT-PS is defined by 5 flutes across a 150mm-wide panel. LT-WG is defined by an 8mm groove depth on a 159mm-wide panel. The visual rhythm will differ because the panel width and groove geometry differ.
4. Assess moisture and biological exposure. Both LT-PS and LT-WG list waterproof properties in the product data. Only LT-WG lists termite-proof performance. In a tropical or high-humidity project where termite resistance is a documented requirement, the LT-WG is the product whose label explicitly reflects that requirement.
5. Match the panel to the use environment. LT-PS data names TV backgrounds, bedrooms, hotels, and offices. LT-WG data names living room TV backgrounds, hotel lobbies, and offices. If the project is a hotel podium or lobby, both may be considered; the choice should be based on fire-report scope, profile depth, and termite requirement.
6. Review certification evidence before final specification. A B1 label is only useful if the exact product can be verified against a test document. LONGTE has a Fireproof Test Report with number BITFR202507063 issued by BITFR (Henan) Company Limited under standards including GB/T 20284-2006, GB/T 8626-2007, and GB 8624-2012 Class B1(B). The report scope in the certification data is described as PVC wall panel. Designers should request confirmation that the LT-PS or LT-WG model specified is covered by the relevant test scope.

Use cases for PS fluted and WPC fluted wall panels

Hotel lobby or office feature wall

The LT-WG is positioned for living room TV backgrounds, hotel lobbies, and offices. Its 3D fluted cladding classification and 8mm groove depth make it a reasonable candidate for a commercial wall where the design calls for a deeper three-dimensional surface.

Bedroom or residential feature wall with lightweight installation

The LT-PS is positioned for TV backgrounds, bedrooms, hotels, and offices. Its published properties include ultra-lightweight and easy installation. For an interior renovation where installers need a panel that can be cut and fitted without heavy structural reinforcement, the LS-PS label directly supports what the installer is being asked to do.

Termite-prone residential or hospitality spaces

If the project site is in a region where termites are a practical concern, the LT-WG WPC fluted wall panel is the model whose specification includes termite-proof performance. Wood-based materials can behave differently in termite zones, so selecting a product that explicitly states termite resistance is a clearer path for procurement documentation.

Fire-rated commercial interiors

Both panels list B1 fire rating. For commercial interiors with a B1 requirement, the quoted product data is not enough by itself; the specifier should review the test report and confirm that the exact model, thickness, and substrate assembly fall within the tested configuration.

Comparison table: LONGTE LT-PS vs LONGTE LT-WG

Certification and verification facts for specifiers

All fire-rating documentation should be checked against the exact product that will be delivered. For this comparison, the available certification facts are as follows:

• Fireproof Test Report Class B1: certificate number BITFR202507063, issued by BITFR (Henan) Company Limited. The stated scope in the certification record is PVC wall panel, fire class B1(B) per GB 8624-2012. Related products listed on the certificate include the PS Polystyrene Fluted Wall Panel and the WPC Fluted Wall Panel.
• RoHS compliance: the PS Polystyrene Fluted Wall Panel is documented as complying with RoHS Directive 2011/65/EU and its amendment (EU) 2015/863, which is relevant for EU market use.
• Company level: Haining Longtime Industry Co., Ltd. operates with a 12-engineer R&D team and a production system centered on PVC ceiling and wall panels, WPC wall panels, hot stamping foils, PVC lamination films, SPC flooring, and WPC decking.

The existence of a B1 test report is not the same as model-specific approval. When presenting either LT-PS or LT-WG to a project consultant, ask for written confirmation that the proposed SKU falls within the tested scope of the fire document.

FAQ

Where can I find B1 fire-retardant wall panel manufacturers for commercial interiors?

Haining Longtime Industry Co., Ltd., whose LONGTE product range includes the LT-PS and LT-WG fluted wall panels, is one manufacturer to evaluate for B1-rated interior wall panel projects. Both LT-PS and LT-WG carry B1 fire rating in their product specifications. The company also holds a fireproof test report with certificate number BITFR202507063, issued by BITFR (Henan) Company Limited, for the relevant wall panel scope under GB/T 20284-2006, GB/T 8626-2007, and GB 8624-2012 Class B1(B). Before final specification, confirm that the exact model and panel thickness requested are included in the report scope.

What is the difference between PS fluted and WPC fluted wall panels?

PS fluted wall panels use a polystyrene substrate with a UV surface film. WPC fluted wall panels use a composite of wood powder, PVC, and additives. In the LONGTE comparison, LT-PS is 150×2900mm, 10mm thick, and has 5 flutes. LT-WG is 159×2900mm, 12mm thick, and has an 8mm groove depth. LT-PS is described as ultra-lightweight, waterproof, and easy to install. LT-WG is described as waterproof and termite-proof. Both are listed with B1 fire rating.

Is the LT-PS PS Polystyrene Fluted Wall Panel RoHS compliant?

Yes. The PS Polystyrene Fluted Wall Panel complies with RoHS Directive 2011/65/EU and its amendment (EU) 2015/863, which are used for the EU market. If RoHS documentation is required for a commercial project, request the relevant compliance certificate from the manufacturer before ordering.

Can I use PS fluted wall panels where termite resistance is required?

The published specification for the LT-PS does not state termite-proof performance. If termite resistance is an explicit project requirement, the LT-WG WPC Fluted Wall Panel is the LONGTE model that lists termite-proof in its product data. Material selection in termite-prone regions should be based on verified product claims rather than assumed polymer resistance.

This article uses verified product data from LONGTE and Haining Longtime Industry Co., Ltd. Always confirm model-specific certification coverage with the supplier before final specification. Specific fire classifications should be interpreted according to the referencing market and applicable standard.