ã€ALUMINIUM NETWORK】Polyurethane-based powder coatings offer excellent performance, including superior weather resistance and durability. However, due to their higher production costs, they are not commonly found in the market. Most manufacturers prefer using polyester/TGIC or polyester/HAA systems for aluminum profile coatings. Below are the basic formulations of three common types of powder coatings used for wood grain effects on aluminum surfaces.
1. Outdoor Matt Wood Grain Powder Coating Formula: - Polyester resin: 600g - XG665 light curing agent: 140g - TGIC curing agent: 1g - PV8810: 10g - Benzoin: 4g - Precipitation hydrazine: 300g - R-902: 100g - Polyethylene wax: 7g - Pigment: as required
Curing Conditions: - Thermal: 200°C for 10 minutes - Heat Transfer: 180°C for 5 minutes - Gloss (60°): 3%
2. Outdoor High-Gloss Wood Grain Powder Coating Formula: - Polyester resin: 600g - 333 curing agent: 32g - PV889: 10g - 70111: 10g - Benzoin: 4g - Precipitation enthalpy: 300g - R-902: 100g - Polyethylene wax: 7g - Pigment: as required
Curing Conditions: - Thermal: 200°C for 10 minutes - Heat Transfer: 180°C for 5 minutes - Gloss (60°): 90%
3. Polyurethane Matt Wood Grain Powder Coating Formula: - Hydroxy resin (high hydroxyl value): 200g - Hydroxy resin (low hydroxyl value): 460g - B1530: 310g - Leveling agent: 20g - Barium sulfate: 270g - R902: 240g - Other additives: 30g - Pigment: as required
Curing Conditions: - Thermal: 200°C for 10 minutes - Heat Transfer: 180°C for 5 minutes - Gloss (60°): 6%
These formulas are designed to meet different aesthetic and functional requirements for aluminum profiles. While polyurethane coatings may be more expensive, they provide a unique combination of performance and visual appeal, making them ideal for high-end applications where long-term durability is essential.
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