Explaining the relationship between temperature and viscosity that makes it easy to drizzle in summer.
As the temperature rises, the viscosity of the paint decreases and the amount of dripping increases. We will explain the measures against dripping in summer with numbers.
Has the amount of dripping increased since summer? The cause may be a decrease in viscosity due to temperature. With a 10-degree rise in temperature, the viscosity of the paint can decrease by up to 30 percent. ────────────── ■ Cause of occurrence When the temperature rises, the viscosity of the paint decreases, making it more prone to dripping on vertical surfaces and corners. If the discharge amount and film thickness settings remain the same as in winter, the risk of dripping increases in summer. ■ The truth If you continue working without realizing that the viscosity has decreased, dripping will occur repeatedly. Dripping tends to concentrate in the afternoon, during the time when temperatures are highest. ■ Improvement measures During summer, regularly check the viscosity with a viscometer and establish seasonal viscosity standards. Set the film thickness slightly thinner and adjust the spraying distance for vertical surfaces. Please refer to the materials for viscosity management during summer.
basic information
Viscosity management: Seasonal standard setting / Measurement method: Use of Ford cup / Adjustment of vertical spray distance / Reduction of drip occurrence rate
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Applications/Examples of results
Complex-shaped parts, products with many vertical surfaces, mass production painting in summer.
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