160mm*20mm Co Extrusion WPC Fence Ultra Durable Cap Stock

160mm*20mm Ultra durable cap stock coextrusion WPC fence

Product Summary

Upgraded from traditional WPC, it features a 360-degree protective cap stock layer, delivering ultra-durability and superior wear resistance. It effectively eliminates common points like mold and fading, offering a virtually zero-maintenance lifestyle for high-end outdoor spaces.

About this Product

• Ultra Durable Cap Stock Shield 

•  The second-generation WPC fence features a co-extruded polymer outer layer that provides unparalleled resistance to scratches, impacts, and heavy wear. 

• Superior Stain & Fade Resistance 

• Thanks to the advanced capped technology, oils, wine, and UV rays cannot penetrate the surface, ensuring the fence retains its vibrant, realistic wood look for decades. 

• Zero-Maintenance & Mold-Proof

• The moisture-proof shield completely isolates the inner wood-plastic core from water and humidity, preventing any mold, rot, or splitting without any sealing required.

Technical Specification

How to Install

Method 1: In-Ground / Dig-In Installation

[Applicable Scenario] Soft ground surfaces such as gardens, lawns, soil, or sandy ground. This is the most stable method for outdoor fencing.

1. Measurement, Layout, and Alignment: Stretch a string line according to the standard span of the fence (typically 1.8 m) to mark the exact center point of each post. Precision in spacing is critical; otherwise, the fence boards will not fit into the post slots.

2. Digging Post Holes: Dig foundation holes at the marked locations. Standard requirement: Hole diameter is generally 300 mm, with a depth of 500 mm - 600 mm (in cold regions, the depth must extend below the frost line).

3. Setting Posts and Pouring Concrete: Insert the WPC posts (or composite posts with internal steel/aluminum reinforcements) into the holes. Pour in mixed concrete (Grade C20 or above). Key Step: Use a spirit level to repeatedly check and adjust the post in two vertical directions to ensure it is 100% plumb.

4. Curing and Waiting: Temporarily secure the leveled posts with bracing timber and allow the concrete to cure. Typically, a waiting period of 24 to 48 hours is required to ensure the concrete has fully hardened before proceeding with board assembly.

Method 2: Bolt-Down with Base Plate

[Applicable Scenario] Pre-hardened ground surfaces such as concrete slabs, concrete foundations, or brick/stone patios.

1. Positioning and Marking: Align the string line on the hardened ground. Determine the exact position of the post base plates based on the net length of the fence board (e.g., 1750 mm plus the post slot depth). Mark the drill holes through the base plate using a marker.

2. Drilling: Use an impact drill equipped with a drill bit that matches the expansion anchors (usually 12 mm or 14 mm in diameter). Drill vertically into the concrete to a depth of 80 mm - 100 mm. Clean out all dust and debris from the holes.

3. Installing and Securing the Metal Base: Align the galvanized steel or aluminum post support base over the drilled holes. Insert the metal expansion anchor bolts or chemical anchors, and tighten them securely using a socket wrench to anchor the base firmly to the concrete.

4. Sleeving the WPC Post: Slide the outer hollow WPC post sleeve from top to bottom over the fixed metal base plate, then lock the inner and outer layers together at the bottom using self-tapping screws.

Application Gallery

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FAQ

Q1: What is the difference between 1st generation and 2nd generation WPC fences?

A1: First-generation WPC is uncapped, making it more prone to staining and fading. Second-generation (co-extrusion) WPC features a 360-degree protective polymer shell that delivers superior scratch, stain, and UV resistance．

Q2: Why is a cap stock coextrusion WPC fence considered ultra-durable?

A2: The outer shield uses high-density engineering polymers that block moisture, insects, and UV rays from reaching the core, making it less susceptible to deep scratches and structural degradation. 

Q3: Does the second-generation WPC fence look more like real wood?

A3: Yes, the co-extrusion process allows for multi-chromatic coloring and deep grain embossing, creating a more natural, realistic, and high-end wood appearance than traditional alternatives. 

Q4: Is the second-generation coextrusion WPC fence worth the higher initial investment?

A4: Absolutely. While the upfront cost is higher, its extended 25-30+ year lifespan and complete elimination of painting, staining, and repairs offer a much higher return on investment (ROI) over time.