1.What are the environmental risks in the color coating process?
Paint raw materials: containing benzene solvents, heavy metal pigments (lead/chromium), plasticizers.
Coating process: solvent volatilization (VOCs emissions), high energy consumption.
Curing and baking: natural gas combustion produces CO₂/NOx.
Waste paint treatment: organic waste paint residues are difficult to degrade.
2.What are the updates on environmentally friendly coatings?
Water-based coatings: use water as solvent, no benzene (such as water-based polyester).
High-solid coatings: solid content > 65%, reducing solvent usage.
Powder coatings: zero VOCs, excess powder can be recycled (such as PVDF powder).
Chromium-free passivation primer: replace carcinogenic chromates with titanium zirconium system
3.What does low-carbon production process include?
RTO thermal storage combustion technology: VOCs waste gas is heated to 760℃ for decomposition, heat recovery rate is >95%, and natural gas consumption is reduced.
RTO thermal storage combustion technology: VOCs waste gas is heated to 760℃ for decomposition, heat recovery rate is >95%, and natural gas consumption is reduced.
4.What are the environmental advantages of the entire life cycle?
Long life and waste reduction: PVDF coated panels have a lifespan of 25+ years, which reduces the need for replacement by 2 times compared to ordinary panels (10 years), and the full-cycle carbon footprint is reduced by 35%
Recyclability: Steel plate recycling rate is >98%, and coating ash can be used as ceramic raw material (lead-free chromium formula is required)
Contribution to building energy conservation: ◦ Light-colored high-reflective coating (Solar Reflectance Index >80%) reduces building cooling energy consumption by 15%~20%
5.What are the effects of color coating process on environmental performance?
Negative impact: VOCs, heavy metals, and high carbon emissions from traditional processes are the main environmental burdens;
Positive breakthrough: Through the combination of water-based/powder coatings + RTO emission reduction + chromium-free technology, it can achieve: ◦ VOCs reduction > 70% ◦ Carbon emissions reduction of 50%+ ◦ Complete elimination of toxic heavy metals