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16
2025
09
The treatment method for solidifying the coating in a high-temperature baking booth
High-temperature paint booths require careful temperature control: if the ambient temperature rises too rapidly, the surface coating tends to form a skin layer prematurely. This can obstruct the free release of solvent vapors from the underlying coating, significantly prolonging the drying process and even compromising the overall quality of the finish. When solvent evaporation within the coating is hindered by the gel-like film that forms on the surface as it cools first, internal vapor pressure builds up. If this pressure exceeds a certain threshold, it may force its way through the surface film, leaving behind tiny pinholes—commonly referred to as "pinholes." Alternatively, if the surface film has already hardened, trapped vapor cannot escape, causing the film to bulge outward and form visible blisters. Such defects not only weaken the coating’s structural integrity but also severely impair its adhesion and protective properties. To prevent these issues, it’s crucial to maintain a controlled temperature during the initial stages of coating application, typically keeping it between 25°C and 30°C. This allows most of the solvents within the coating to evaporate before the surface begins to solidify. Once this phase is complete, the temperature can be gradually increased, enabling the coating to dry and form a durable film more efficiently. During the painting process, external oxygen is drawn into the booth after passing through primary purification filters, then further refined by secondary filtration systems mounted at the ceiling before being distributed evenly throughout the space. The oxygen flow is designed to descend steadily at a rate of 0.2 to 0.3 meters per second, ensuring that any residual paint particles or fumes are swiftly carried away and expelled through strategically placed exhaust vents at the bottom of the room. This continuous, downward-flowing air circulation ensures that the indoor air remains exceptionally clean—often exceeding 98% purity—and maintains a consistent airflow around the vehicle, effectively removing excess overspray while maximizing coating quality. To ensure optimal oxygen circulation, the air velocity inside the booth is maintained at a steady 0.3 to 0.5 meters per second. Additionally, the concentration of solvent vapors released into the air is carefully monitored to stay well below permissible limits, guaranteeing safe production practices. All electrical and lighting equipment installed within the high-temperature paint booth must comply with strict explosion-proof regulations. Critical components like wiring must remain concealed to eliminate any risk of sparks, thereby minimizing the potential for hazardous combustion incidents. For those seeking custom solutions, Guangzhou Qiangxin Spray Booth Machinery & Equipment Co., Ltd. specializes in manufacturing a wide range of high-quality paint booths, spray booths, and related accessories. We also offer comprehensive automotive repair and maintenance equipment tailored to meet diverse industry needs. We warmly invite customers to visit our facility for an in-depth tour and consultation! **Our Core Values:** Quality defines everything we do. We embrace innovation to build a brighter future together. **Our Business Philosophy:** Trustworthiness is our lifeline. Technology leads the way. Quality forms the foundation of our success. Service ensures your satisfaction every step of the way. **Company Website:** [www.gzqxjd.com](http://www.gzqxjd.com) [www.gzqxjd188.com](http://www.gzqxjd188.com) **Contact Us:** Tel: 020-61165278 / 13728095578 Ms. Wang Email: 2851631176@qq.com **Company Address:** Building B, Xiangxi Avenue Zhongzhou Creative Park, Xiamao, Baiyun District, Guangzhou
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