190*20mm Weatherable Exterior WPC Wall Panel Color Fast ASA Co Extrusion
Product Details
Weatherable Exterior WPC Wall Panel
,190*20mm Exterior WPC Wall Panel
190*20 Ultra-Weatherable & Color-Fast ASA Co-Extrusion Outdoor WPC Wall Panel
Product Summary
Manufactured via advanced dual-machine multi-layer co-extrusion, a high-tech ASA (Acrylonitrile-Styrene-Acrylate) engineering polymer shield is molecularly fused over a high-strength composite core. This product leverages the inherent, elite UV-stability and weatherproofing genes of ASA polymer to completely eliminate common industry points such as yellowing, surface powdering, and sun-bleaching. Featuring exceptional surface hardness alongside a rich, premium matte timber tactile finish, this zero-painting facade system serves as the authoritative benchmark for high-UV regions, sub-zero climates, and iconic architectural designs.
What is ASA?
ASA (Acrylonitrile-Styrene-Acrylate) is a high-performance engineering plastic. By replacing the butadiene in traditional ABS with sun-resistant acrylic rubber, it gains an incredibly hardcore profile of ultra-weatherability and UV resistance. It will not yellow, chalk, or crack under intense outdoor exposure, making it widely used for automotive exteriors, premium roofing tiles, and the outer protective layer of high-end second-generation co-extrusion WPC wall panels.
Product Features
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Automotive-Grade UV & Yellowing Resistance
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Utilizing an engineering-grade ASA surface layer, this outdoor WPC wall panel blocks UV radiation at a molecular level, preventing the material from yellowing, chalking, or fading under intense tropical sun.
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Exceptional Thermal Stability & Anti-Static
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ASA technology ensures a much lower thermal expansion coefficient than standard plastic caps. It exhibits zero peeling, melting, or cracking from -40°C to 85°C, while its anti-static properties repel airborne dust.
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Superior Scratch & Chemical Impact Toughness
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The high-density ASA shield layer delivers enhanced Brinell hardness to resist structural scratching from wind-blown sand or branches, while completely neutralizing heavy acid rain and coastal salt spray.
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Low Surface Tension for Self-Cleaning
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The hydrophobic ASA coating creates an ultra-low surface tension profile. Stubborn grease, bird droppings, and industrial soot cannot adhere firmly to the grain and are easily washed clean by natural rainfall.
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Performance Advantages
How to Install
Ensure the base wall is flat, dry, and structurally sound. Install a moisture barrier if necessary. Fix the substructure joists (aluminum, steel, or treated timber) vertically or horizontally depending on your panel orientation. Joist spacing (span) must be less than 50cm (ideally 35cm to 45cm) to prevent panel deflection.
Ensure a continuous air gap of at least 25mm behind the panels. This allows supply air to enter from the bottom and exit from the top, preventing trapped moisture, mold, and heat buildup behind the facade.
Install the starter clips or position the first WPC panel at the base or corner of the wall. Use flat-head self-tapping stainless steel screws to secure the female/male joint point directly onto the joist frame. Use level tools to ensure it is perfectly plumb.
Slide the next panel into the groove of the previous one. Crucial EEAT Requirement: Due to natural thermal expansion and contraction, if installing under 20°C, a 2mm to 5mm gap is strictly required at each butt joint (end-to-end connection) where two wall panels meet. Use extra joists at the ending of each panel to support joint points.
Install matching WPC corner trims, L-profiles, or fascia boards to cover exposed edges, windowsills, and door frames, sealing the system nicely against water ingress while maintaining a sleek aesthetic.
Gap is King
Never butt panels tight end-to-end; leave a 2-5mm thermal expansion gap. Always leave 25mm space behind the panels for airflow.
Solid Base
Do not screw directly into concrete. Max joist spacing: 50cm.
Technical Specifications
| No. | Property | Test Method | Typical Value / Result |
| 1 | Density | ASTM D792 | ≥ 1.35 g/cm³ |
| 2 | Flexural Modulus | EN 310 | ≥ 3,200 MPa |
| 3 | Water Absorption | EN 317 / ASTM D1037 | ≤ 0.5% (24h immersion) |
| 4 | Boiling Water Swelling | EN 321 | ≤ 0.8% (Rate of thickness change ) |
| 5 | Impact Resistance | EN 477 | No cracking, No rupture (≥ 20J) |
| 6 | Temperature Resistance | Internal Lab Test | -40°C to +85°C |
| 7 | Artificial Weathering | ISO 4892-2 (3000h) | Grey Scale ≥ 4 (No chalking, blistering, or cracking |
| 8 | Freeze-Thaw Resistance | ASTM D6662 | Flexural strength loss ≤ 5% after 30 cycles |
Certification
Our Factory
FAQ
Q1: What makes ASA technology superior to traditional PE co-extrusion for outdoor WPC wall panels?
A1: Standard PE (Polyethylene) caps can still degrade, fade, or become brittle over 10-15 years of intense UV exposure. ASA is an advanced engineering plastic widely used in automotive exteriors and roofing. It possesses an acrylic rubber molecular structure that is chemically immune to UV rays, providing double the lifespan, better fade-lock, and higher impact hardness than PE.
Q2: Does the ASA surface layer delaminate or peel away from the WPC core over time?
A2: No, it will never delaminate. The ASA coating and the inner polymer-wood composite core are extruded simultaneously at temperatures above 210°C under immense hydraulic pressure. The two materials cross-link and fuse together at a molecular level, forming a single, inseparable structure that cannot peel or blister under severe freeze-thaw cycles.
Q3: How does the ASA wall panel perform in highly polluted industrial cities or coastal zones?
A3: It performs flawlessly. ASA is highly resistant to chemical aging, making it completely immune to sulfur dioxide emissions in heavy industrial cities and high chloride concentrations in coastal salt-spray areas. It prevents these corrosive elements from ever reaching the structural core fibers, maintaining a pristine facade line.
Q4: Is the gloss level of an ASA co-extrusion panel too unnatural or plastic-looking?
A4: No, quite the opposite. Standard plastic caps often look shiny and synthetic, but our specialized ASA formulation is engineered with advanced matte-texturing agents. Combined with online randomized 3D color-streaking technology, it creates a deeply realistic, ultra-matte hardwood aesthetic with no artificial plastic glare.
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