Is the "dripping" in painting the worker's fault? Traps caused by the environment and viscosity.
The issue of paint defects cannot be resolved solely by how to operate the spray gun. We delve into the close relationship between temperature and thinner dilution ratio.
[Cause of Occurrence] "Dripping" defects are often seen in parts with vertical surfaces or complex shapes. Production managers on-site tend to blame "individual skill" factors, such as the operator's spray gun speed being too slow or the application amount being too high. [Truth] More than half of the causes of dripping are due to the mismatch between "paint viscosity" and "ambient temperature," rather than the operator's skill. Particularly during seasonal transitions, if painting is done at the same dilution ratio (excessive thinner) as in summer while the temperature is dropping, the paint becomes too runny and quickly drips off. [Improvement Measures] It is important to establish rules for selecting thinners (fast-drying or slow-drying) according to temperature and for strict time management using dedicated viscosity cups. A quick reference chart summarizing appropriate viscosity and dilution ratios for each season can be downloaded from this link and posted on-site. [Summary] Dripping in painting can be eradicated not by relying on individual skill but by quantifying paint viscosity management in accordance with temperature changes. Eiwa Kogei Co., Ltd. achieves a uniform and beautiful finish even on complex-shaped parts through thorough paint management.
- Company：永和工芸
- Price：Other
