Aluminum Extrusion Powder Coating
Aluminum Extrusion Powder Coatingis a thermosetting polyester powder coating system mainly composed of saturated polyester resin and a TGIC curing agent. You can use this coating specifically for aluminum extrusion profiles where consistent appearance, mechanical strength, and outdoor durability are required. It provides stable decorative performance combined with reliable weather resistance, making it suitable for architectural and industrial aluminum applications.
Application
Architectural aluminum extrusion profiles
Window and door frames
Curtain wall systems and aluminum panels
Railings, handrails, and façade components
Industrial aluminum frames and structural profiles
Standards
(1) ISO 2409 – Paints and varnishes: Cross-cut adhesion test
(2) ISO 1519 – Paints and varnishes: Bend test (cylindrical mandrel)
(3) ISO 6272 – Paints and varnishes: Rapid deformation (impact resistance)
(4) ISO 1520 – Paints and varnishes: Cupping test
(5) ISO 9227 – Corrosion tests in artificial atmospheres (salt spray)
(6) ISO 6270 – Paints and varnishes: Resistance to humidity
(7) ASTM G154 – Standard practice for operating UV fluorescent apparatus for exposure of nonmetallic materials
(8) Qualicoat Class 1 – Architectural aluminum powder coating requirements (applicable to selected products)
Parameters
| Performance Item | Test Standard | Technical Specification |
|---|---|---|
| Pencil Hardness | GB/T 6739 | ≥H |
| Adhesion | GB/T 9286 | Grade 0 |
| Bending | GB/T 6742 | 03 mm |
| Impact | GB/T 1732 | 50 kg·cm |
| Cupping | GB/T 9753 | ≥6 mm |
| Salt Spray Resistance | GB/T 1771 | 1000 h: slight rust, blistering, peeling area ≤3 mm² |
| Damp Heat Resistance | GB/T 1740 | 1000 h: slight gloss loss, discoloration |
| Accelerated Weathering Test | ASTM G154 / 500UV 0.78 W/m² @ 340 nm 500 h | Slight gloss loss, discoloration |
Features
You achieve uniform surface appearance on aluminum extrusion profiles
You benefit from excellent decorative properties with stable gloss and color
You obtain good mechanical strength suitable for handling and installation
You gain high weather resistance for long-term outdoor exposure
You can select gloss, semi-gloss, or matte finishes based on architectural design needs
You have access to standard, weather-resistant, chemical-resistant, textured, heavy-duty, and masterbatch color series
Selected products meet Qualicoat Class 1 requirements for architectural aluminum use
Packaging
You receive the product in sealed, moisture-resistant packaging to ensure powder stability during transportation and storage. The standard packaging is 25 kg per carton, suitable for automated and manual powder coating lines.
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