Core Advantages: Five Major Performance Breakthroughs for Outdoor Adaptation

1. Weather and Corrosion Resistance, Adaptable to All Outdoor Environments

It adopts a scientific ratio of 65% high-density polyethylene (HDPE), 30% natural wood fiber and 5% special weather-resistant and anti-corrosion additives, eliminating the corrosion risks of traditional wooden keels from the material source. It can be in direct contact with soil, gravel or exposed to rain and sun without rotting, mildewing or absorbing moisture and deforming. After 5 years of outdoor exposure testing, the structural strength retention rate is ≥90%, making it perfectly adaptable to harsh outdoor environments such as coastal areas, wetlands, rainy areas and high-temperature and high-humidity regions.

2. High-Strength Load-Bearing, Stable and Reliable Structure

Optimized through mechanical structure design, the product has a density of 1.1-1.3g/cm³, a flexural strength of ≥20MPa and a compressive strength of ≥35MPa, far exceeding the performance of traditional pine keels. Each meter length can evenly bear a weight of 80-100kg, with uniform stress distribution. It can effectively support the heavy-load requirements of outdoor WPC floorboards, pedestrians and furniture, avoiding problems such as surface layer warping and abnormal noise caused by keel deformation, and ensuring the overall stability of the paving system.

3. Natural Protection, No Need for Anti-Corrosion and Anti-Insect Treatment

WPC material naturally has biological protection properties such as termite resistance, insect resistance and mildew resistance. There is no need for pre-treatment processes like brushing anti-corrosion paint or soaking in insect repellent that are required for traditional wooden keels. This not only avoids environmental pollution caused by chemical agents but also saves labor and time costs for pre-treatment. In outdoor projects in termite-prone areas such as Guangxi and Hainan, it has achieved a 5-year record of no insect infestation and mildew.

4. Dimensional Stability, Temperature Difference Resistance and Deformation Resistance

The material shrinkage rate is controlled at ≤0.3% through special molding technology. In the temperature range from -40℃ (severe cold) to 60℃ (intense sun exposure), the dimensional change rate is extremely small, with no cracking or warping. Compared with traditional wooden keels that expand and contract due to dry-wet changes, WPC keels can maintain long-term dimensional stability, effectively avoiding problems such as increased gaps or extrusion deformation of the surface layer paving and extending the service life of the overall paving system.

5. Lightweight and Convenient, Easy Installation and Maintenance

While ensuring high strength, it achieves a lightweight design, which is 30% lighter than solid wood keels of the same specification, making transportation and high-altitude operations more convenient. Produced with standardized dimensions, it supports on-site cutting and drilling, and can quickly adapt to different paving spacing requirements. Daily maintenance only requires regular cleaning of surface debris, no need for painting, waxing or anti-corrosion renovation. The annual maintenance cost is less than 1/10 of that of traditional keels.

Typical Application Scenarios and Adaptable Systems

1. unicipal Landscape Projects: WPC floor paving in parks, base layer of scenic boardwalks, load-bearing base layer of square waterfront platforms. Adaptable to large-span paving and high-frequency pedestrian flow scenarios.

2. Commercial Leisure Spaces: Outdoor terrace of hotels, outdoor seating area of Internet-famous restaurants, paving base layer of shopping mall roof gardens. Ensures load-bearing requirements for furniture and concentrated crowds.

3. Home Outdoor Areas: WPC floor base layer of villa courtyards, terraces and balconies. Adaptable to daily family activities and load-bearing of small outdoor furniture, balancing stability and aesthetics.

4. Special Outdoor Scenarios: Boardwalk base layer of beach resorts, wetland landscape platforms, paving base layer around swimming pools. Its moisture resistance and corrosion resistance adapt to special environments.

【Adaptable Systems】: Perfectly matches various outdoor WPC floorboards and wall panels, compatible with multiple paving methods such as snap-fit and screw fixing. Forms a "full WPC paving system" with the WPC surface layer to achieve synergistic improvement of overall structural performance.

Installation and Maintenance Guide

1. Installation Points

The base should be flat and dry (flatness error ≤3mm/m); lay out the lines according to the spacing of 400-500mm, and the keel joints should overlap on the base load-bearing points with an overlap length ≥100mm; fix with φ8mm stainless steel expansion screws, and both ends and the middle of each keel must be fixed (screw spacing ≤500mm); reserve a 3mm expansion joint when connecting with the floor to adapt to temperature deformation.

2. Maintenance Guide

• Daily Maintenance: Regularly clean fallen leaves and debris on the keel surface every month to avoid mildew caused by accumulation (no need for water washing, natural rainwater can rinse it);

• Regular Inspection: Conduct inspections in spring and autumn every year, focusing on checking the fixing status of screws and whether there is abnormal deformation of the keel. Tighten in time if looseness is found, no need for replacement;

• Special Environments: For high-salt and high-humidity environments such as coastal areas and wetlands, rinse with clean water once every 2 years to remove surface salt accumulation without affecting performance.

The product has passed ISO 9001 quality management system certification and testing by the National Building Materials Testing Center, and provides a 5-year warranty service. For problems such as cracking and deformation caused by non-human factors during the warranty period,replacement and technical support are provided.