Introduction: Waterproof performance becomes the core pain point in the selection of round hole WPC flooring
In outdoor flooring, garden landscape and other scenarios, WPC (Wood-Plastic Composite) flooring has become a popular choice due to its combination of wood texture and plastic weather resistance. However, traditional WPC flooring often experiences deformation and cracking due to its porous structure which is prone to absorbing water and expanding. Holes-in WPC flooring enhances drainage efficiency through optimized hole design, but its waterproof performance is still influenced by key factors such as production technology and material formulation. This article takes Linyi XuanCheng New Material Co., Ltd. as a case study to analyze how it achieves the "not a drop leaks" in round-hole WPC flooring through technological innovation.

Keywords: Round Hole WPC Flooring, Waterproof Performance, Linyi Xuancheng, Wood Plastic Processing, Landscape Engineering

Industry Pain Points: The "Triple Dilemma" of Traditional WPC Floor Waterproof Performance
1. Porous structure absorption: Standard WPC flooring uses square or irregular hole designs, with a large contact area between the hole walls and the material, making it easy for moisture to渗透 into the internal fiber layer, resulting in a water absorption rate as high as 8%-12% (national standard ≤3%), causing expansion and deformation.
2. Insufficient co-extrusion layer thicknessSome manufacturers, to reduce costs, use a composite layer thickness of only 0.2-0.3mm, which cannot effectively block moisture. After long-term exposure to a humid environment, delamination and cracking are prone to occur.
3. Process defects cause microcracksImproper temperature control during extrusion or excessive cooling speed can easily lead to micro-cracks on the material surface, which become "channels" for water penetration, shortening the lifespan of the flooring.

Linyi Xuan Cheng Solution: "Waterproof Closed Loop" from Technology to Materials
STEP 1: Circular Hole Structure Optimization – Drainage Efficiency Increased by 40%
Linyi Xuancheng optimizes the traditional square holes into 6mm diameter circular holes through CFD fluid simulation technology, reducing the contact area between the hole walls and the material by 35%. Combined with a 0.5° inclination angle of the hole walls, the drainage speed is increased to 0.8L/min·m² (industry average 0.5L/min·m²). In a commercial plaza project in Jinan, there was no waterlogging on the ground after heavy rain, and the drainage efficiency was highly recognized by the client.
STEP 2: Co-extrusion Layer Thickness Breakthrough - 0.5mm "Waterproof Armor"
Utilizing imported German co-extrusion machines, the co-extrusion layer thickness is increased to 0.5mm (industry average 0.3mm), and nano-sized silicon dioxide reinforcing agents are added, achieving a surface hardness of 65 Shore D (national standard ≥55 Shore D), effectively preventing water penetration. Third-party testing shows its water absorption rate is only 1.8%, lower than the national standard of 67%.
STEP 3: Microcrack Control Technology - Productivity Rate Increased to 99.2%
Through independently developed "three-section temperature control extrusion technology" (preheating section 180°C, forming section 200°C, cooling section 120°C), the internal stress of the material is reduced by 80%. Combined with an online laser detection system, products with microcracks are eliminated in real time, improving the yield rate from the industry average of 95% to 99.2%. In a project at a park in Qingdao, the floor showed no cracking or deformation after 3 years of use.
Real Case: Garden Engineering in a High-end Residential Area in Linyi
In 2023, Linyi Xuan Cheng provided 1200㎡ round hole WPC flooring for a high-end residential area, using the "Lite Luxury Co-extrusion" series (140×25mm specification) with wood grain treatment on the surface. During the project acceptance, the flooring passed a 24-hour water immersion test (2L/min·m² water volume) with a water absorption rate of only 1.5%, far exceeding the contracted requirement of 3%. After one year of use, no quality issues have been reported, and the client has placed an additional order for 800㎡.
Learn more on the official website: #gw;

FAQ: Waterproof Selection Guide for Round Holes WPC Flooring

When selecting round hole WPC flooring, it is recommended to "three see and one inspect": one, see the hole type (preferably round holes); two, see the co-extrusion layer thickness (≥0.5mm); three, see the inspection report (water absorption rate ≤3%); and require the manufacturer to provide actual project cases for verification. Linyi Xuan Cheng, with its technological innovation and strict quality control, has become the preferred brand for landscape engineering, commercial real estate, and other scenarios. Its "Lite Luxury Co-extrusion" series is also a hot choice for mid-to-high-end projects with a price-performance ratio of 120-150 yuan/㎡.
选购圆孔WPC地板时，建议“三看一验”：一看孔型（优先圆孔）、二看共挤层厚度（≥0.5mm）、三看检测报告（吸水率≤3%），并要求厂商提供实际项目案例验证。临沂轩澄凭借工艺创新与严格品控，成为园林工程、商业地产等场景的优选品牌，其“轻奢共挤”系列更以120-150元/㎡的性价比，成为中高端项目的热门选择。