This wall panel system is manufactured from rigid PVC compound with an embedded dark walnut wood grain decorative surface. The 7.5 mm thickness provides structural rigidity while maintaining a weight suitable for direct wall mounting. Each panel has a width of 25 cm and incorporates a square hole pattern along the installation edges. The closed-cell PVC structure prevents moisture absorption and resists dimensional change in high-humidity environments including bathrooms, kitchens, basements, and commercial wet areas.

Core Functional Advantages

Waterproof material composition: Non-porous PVC substrate with 0.1 percent water absorption rate prevents swelling, delamination, or mold propagation in continuous damp conditions.
Square hole fastening system: Pre-formed square apertures spaced at 150 mm intervals allow screw or nail fixation without pre-drilling, reducing installation time compared to solid panels.
Dark walnut grain consistency: Printed grain layer with embossed texture reproduces natural wood appearance across multiple panel joints without repeating patterns.
Dimension stability: 7.5 mm thickness minimizes linear expansion rate of 0.065 mm per meter per degree Celsius within standard indoor temperature ranges.
Low maintenance surface: Non-absorbent finish resists staining from common household chemicals and allows cleaning with neutral detergents without grain fading.

At a Glance

Thickness 7.5 mm

Width 25 cm

Hole Shape Square

Material Rigid PVC

Finish Dark Walnut Wood Grain

Technical Specifications

Composition	PVC with calcium-zinc stabilizers, wood grain decorative film
Thickness (mm)	7.5 (plus minus 0.2 mm tolerance)
Width (cm)	25
Length (standard)	2.4 m / 2.7 m / 3.0 m (customizable upon request)
Shape of the hole	Square
Surface finish	Dark walnut wood grain, embossed texture, matte protective coat
Fire classification	Class B1 (self-extinguishing, meets interior building material standards)
Density	0.55 g per cubic centimeter

Product Characteristics

Square hole configuration: Holes positioned at 15 cm intervals along the panel length, aligning with standard wall stud spacing of 40 cm or 60 cm.
Edge joint design: Tongue-and-groove profile on longitudinal edges for continuous surface assembly and moisture barrier continuity.
Color stability: UV-stable decorative layer maintains color parameters under indirect indoor lighting for minimum 5 years of typical residential use.
Impact resistance: Rigid PVC formulation withstands minor impacts up to 2 joules without cracking or surface indentation.
Thermal insulation contribution: Closed-cell structure provides additional thermal resistance value of approximately 0.8 compared to unclad drywall.
Weight per square meter: Approximately 1.2 kg, reducing structural load requirements for wall mounting.

Application Scenarios

Residential bathrooms and shower enclosures: Direct exposure to steam and water splash without material degradation.
Kitchen backsplashes and utility walls: Resistance to grease, moderate heat, and moisture from cooking activities.
Basement wall cladding: Mitigates rising damp and condensation issues typical in below-grade spaces.
Commercial restrooms and locker rooms: Non-porous surface enables sanitation protocols and resists bacterial adherence.
Laundry rooms and mudrooms: Protection against splashes, humidity cycles, and detergent exposure.
Retail and hospitality interiors: Dark walnut finish provides visual consistency with modern rustic or industrial design themes.

Installation & Handling Considerations

Square hole fastening guidance: Use pan-head self-tapping screws or galvanized finish nails. Align fasteners with the square holes. Maintain 1 mm gap between fastener head and panel surface to accommodate thermal expansion.

Cutting and trimming: Use fine-tooth saw blade with 10 to 12 teeth per inch or PVC scoring knife. Deburr cut edges with medium-grit sandpaper to ensure proper joint alignment.

Acclimation before installation: Store panels horizontally in the installation room for 24 to 48 hours at 18 to 28 degrees Celsius to stabilize material before fixing.

Substrate requirements: Install on flat, dry, and clean surfaces. Maximum allowable substrate irregularity is 3 mm over 1 meter. For concrete or masonry, apply vapor barrier when required by local building codes.

Common Questions & Technical Solutions

Can panels be installed in direct sunlight through windows?	Prolonged UV exposure may cause gradual color shift over 3 to 5 years. For sunrooms or south-facing walls, apply UV-blocking window film or use in shaded interior zones.
How to clean the dark walnut grain surface?	Use non-abrasive sponge with mild soap and water. Avoid solvent-based cleaners, bleach, or abrasive powders which may degrade the grain layer.
Recommended joint sealant for wet areas	Apply neutral-cure silicone sealant (acetic-acid free) along tongue-and-groove joints for additional waterproofing in shower enclosures.
How to handle expansion gaps at corners	Leave 3 to 5 mm gap at internal corners. Cover with PVC trim or matching corner molding. Use foam backer rod for sealing in high-humidity zones.
Fastener specifications for square holes	Number 6 or number 8 self-tapping screws (length 25 to 32 mm) or galvanized spiral nails. Ensure fastener head diameter does not exceed 8 mm to fit square hole opening.
Can panels be removed and reinstalled	Mechanical removal is possible with care. Square holes may deform during extraction. Reinstallation in critical moisture-exposed areas is not recommended.

Material Compatibility & Limitations

Operating temperature range: minus 10 degrees Celsius to 55 degrees Celsius for interior applications. Avoid placement near direct heat sources exceeding 80 degrees Celsius.
Chemical resistance: Resistant to diluted acids, alkalis, and salt solutions. Not compatible with aromatic hydrocarbons or chlorinated solvents.
Load bearing capacity: Panels function as decorative cladding only. Do not use as structural backing for heavy shelving or fixtures.
Recyclability: PVC material can be reprocessed at specialized facilities. Contact local recycling guidelines for rigid PVC post-consumer waste.

Performance Reference Data

Water absorption Less than 0.1% (ASTM D570)

Flexural strength 32 MPa minimum

Thermal expansion 0.065 mm/m·°C

Surface hardness Shore D 65 ± 3

Formaldehyde Non-detectable (CARB Phase 2)

Storage recommendation: Keep panels in original packaging, stored flat on pallets. Avoid stacking above 1.5 meters height to prevent deformation. Store in dry environment with relative humidity below 80 percent.

Warranty period reference: Manufacturer limited warranty of 10 years against manufacturing defects and delamination under standard indoor use. Warranty does not cover improper installation, mechanical damage, or extreme environmental exposure.

Product specifications are based on standard manufacturing parameters. Variations may occur within permitted tolerances. Verify compatibility with local building codes prior to installation.

Composition:	PVC
Thickness (mm):	7.5
Width (cm):	25
Shape of the hole:	Square

Haining Yunxi New Material Technology Co., Ltd. is a modern science and technology all-round enterprise focusing on the research and development, production, manufacturing, promotion and sales of panel , ceiling, electrical appliances, flooring and so on. It is located in Yuanhua Town, Haining City, Zhejiang Province, the origin of ceiling in China. The company has 2 factories, nearly 20,000 square meters.The company has long been focusing on the independent research and development of panel and flooring, with the abundant product system in the industry. It can not only fully meet the needs of various styles of home decoration, but also meet the needs of various engineering projects, and is deeply loved and favored by the majority of consumers.