Capped WPC Boards for Exterior Applications
Capped WPC or Co-extrusion WPC
Capped WPC, also known as co-extrusion WPC, represents the newer generation of wood–plastic composite materials used in demanding exterior environments. Compared to conventional WPC, capped WPC products offer improved surface protection, durability, and colour retention, making them suitable for long-term outdoor use.For projects that require higher performance and enhanced protection, capped WPC technologies such as UltraShield capped WPC are commonly specified for exterior decking and cladding applications.
The Material
What Are Capped WPC Boards?
Capped WPC boards feature a protective outer polymer layer that enhances resistance to UV exposure, moisture, stains, and fading. This capping layer improves surface durability while retaining the structural strength of WPC, making capped boards ideal for exterior decking and cladding applications.
Capped WPC or Durashield is a co-extruded material with an inner composite core shrouded by a high-density outer shield core. The inner core is a combination of hardwood powders, 100% recycled HDPE, filling, binders, and additives that are co-extruded and capped with an outer shield layer. Both the core and outer shield are co-extruded together simultaneously through a mold, and the non-organic surface material with antioxidants and UV inhibitors used during the process completely covers and protects the inner core.
Characteristics
Capped WPC or Durashield products have improved characteristics over conventional WPC products. The outer shield core provides a better appearance. They are far more UV resistant and less susceptible to fading or discoloration and thus have higher weathering capabilities. The material is less prone to scratching, staining, or mildew and hence needs much lower maintenance. The result is improved strength and resilience to weathering and a better wood feel over longer periods of time.
Advantages of Capped WPC
Co-extrusion is a game-changing technology that far outbeats standard WPC products and an array of other materials used for similar applications. The premium good looks, ultra durability, and ultra-low maintenance of capped WPC or Durashield products make them a widely preferred choice for surface applications such as outdoor decking and cladding.
Capped WPC vs Uncapped WPC
| Feature | Capped WPC | Uncapped WPC |
|---|---|---|
| UV resistance | High | Moderate |
| Fade resistance | Excellent | Average |
| Maintenance | Very low | Low |
| Exterior lifespan | Longer | Standard |
Applications of Capped WPC
Capped WPC or Durashield products are ideal for use in commercial & residential areas with heavy footfalls such as pool sides, pathways, courtyards, extension decks, parks, play areas, and terraces. The wide array of surface finishes and colors provides very good flexibility for use in exterior facades, ceilings, false ceilings, partitions, prefab buildings, gazebo tops, signage, and accent & feature walls.
With such an excellent combination of aesthetics, durability, and performance, Capped WPC or Durashield is here to stay!
FAQs on Capped WPC
What is capped WPC?
Capped WPC is a wood–plastic composite board with an additional protective outer layer. This capping layer improves resistance to UV exposure, moisture, stains, and fading, making capped WPC more durable and suitable for exterior applications.
Is capped WPC better than uncapped WPC for outdoor use?
Yes. Capped WPC performs better outdoors because the protective cap shields the board from sunlight, moisture, and surface wear. This results in improved colour retention, lower maintenance, and longer service life compared to uncapped WPC.
Does capped WPC fade over time?
Capped WPC is highly fade resistant due to its UV-protected outer layer. While all exterior materials experience minimal colour change over time, capped WPC retains its appearance significantly longer than uncapped WPC when exposed to sunlight and weather.
Where are capped WPC boards commonly used?
Capped WPC boards are commonly used for exterior decking, wall cladding, balconies, terraces, pergolas, and other outdoor architectural applications where enhanced durability and appearance are required.
Is capped WPC low maintenance?
Yes. Capped WPC requires very little maintenance. It does not need painting, polishing, or sealing and can be cleaned easily with water and mild detergents, making it ideal for long-term exterior use.
Is capped WPC waterproof?
Capped WPC offers excellent moisture resistance. The capped surface prevents water absorption and helps protect the board from swelling, cracking, and fungal growth, making it suitable for humid and rainy conditions.
