Saturated Polyester-Epoxy Based Thermosetting Powder Coating
1. Product Description
This product series is a thermosetting powder coating formulated with saturated polyester resin and epoxy resin as the main components, supplemented by necessary pigments, fillers and additives. Manufactured through melt extrusion and grinding processes, it possesses excellent physical properties, chemical properties and decorative performance. The series can be customized to meet specific requirements, including different curing temperatures (140℃~200℃), textures (smooth, sand, hammer tone) and gloss levels (7%~95%).
2. Storage Conditions
Store in an environment with temperature below 30℃ and relative humidity below 60%. The shelf life is 6 months. Beyond this period, the product must pass re-inspection before use.
3. Powder Curing Requirements
Curing parameters: 180℃ for 15 minutes (workpiece temperature); 200℃ for 10 minutes (workpiece temperature). For matte products, the curing time needs to be extended by 5 minutes. Please refer to the product's test report for details.
Spray film thickness: Standard products: 60~80μm; Textured products: Film thickness varies by texture size. Exceeding the recommended film thickness may cause pinholes or texture irregularities.
Relevant test results are obtained under the premise of substrates, operating processes and parameters that meet corresponding standard requirements (or specific conditions). Actual performance may differ under the customer's on-site substrates, processes and parameters. Additionally, all tests are conducted under laboratory conditions and are for reference only.
4. Operation Process and Parameters
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Substrate Type
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Surface Treatment
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Ordinary Steel
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Zinc Phosphate Treatment
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Galvanized Steel Sheet
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Iron Phosphate Treatment
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Aluminum Material
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Chromating Treatment
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Pre-treatment Requirements
Before the above treatments, the substrate must be thoroughly cleaned to remove grease and then dried. The drying temperature shall not exceed 200℃ to avoid damaging the pre-treatment film, which may result in the final powder coating failing to meet performance requirements.
For castings (especially castings) and hot-dip galvanized workpieces: High-temperature treatment must be performed to remove internal moisture and gases before spraying to prevent bubble formation. Please notify us in advance to make necessary formula adjustments accordingly.
Remarks
Customers shall conduct regular quality inspections of the operation process and parameters in accordance with their suppliers' requirements.
