Depending on the grade, there is a middle coat between the primer and the top coat.
This is an announcement from Daito Kasei Co., Ltd. regarding the "Process of Fluororesin (Teflon) Coating."
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basic information
【Product Features】 ○1. Incoming Inspection: We check for issues such as scratches, dents, and weld spots before coating. ○2. Degreasing and Preheating: To remove oil and contaminants, we perform degreasing followed by high-temperature preheating. ○3. Surface Roughening: We conduct blast treatment using alumina grinding materials to remove contaminants and oxidation films caused by preheating. If necessary, thermal spraying is done after blasting. ○4. Primer (Undercoat): This is an adhesive to bond the substrate and topcoat. It is not required for self-adhesive fluororesin coatings. ○5. Drying: Drying occurs at around 120°C. Depending on the primer, high-temperature firing may be necessary. ○6. Topcoat (Overcoat): Coating is applied using a spray gun or electrostatic powder coating machine. ○7. Firing: The fluororesin is cured (melted) at the specified firing temperature and time. ○8. Inspection: We perform appearance inspection, film thickness inspection, and pinhole inspection. A certificate of inspection can be provided if required. ○9. Shipping: We carefully package the product, ensuring protection even beyond the coated surfaces. ● For additional functions and features, please refer to the catalog or contact us.
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Company information
It is possible to apply a fluororesin coating (Teflon coating) on the inside of a pipe with an inner diameter of just 1mm. We may be able to handle processing that other companies have declined. Additionally, we have extensive experience in applying coatings for corrosion prevention on manufacturing equipment. We also have a track record with household items and food-related equipment.