The unevenness of summer is crying out from being too dry.
When the temperature is high, the evaporation of the solvent is too fast, resulting in uneven gloss. This explains the causes and countermeasures for the gloss unevenness typical of summer.
In summer, have you noticed an increase in uneven gloss? The cause may be the rapid drying due to high temperatures. When temperatures exceed 30 degrees Celsius, the evaporation rate of solvents is 1.5 times that of winter. ────────────── ■ Cause of Occurrence When temperatures are high, the solvents in the paint evaporate faster than expected. The surface dries first, resulting in a difference in drying between the surface and the interior, which appears as uneven gloss. ■ The Truth If you continue to paint in summer under winter conditions, the drying will be too fast, leading to uneven gloss. This is especially true if the waiting time before entering the oven is long, as the surface drying will progress too much. ■ Improvement Measures In summer, it is effective to adjust the viscosity and dilution rate of the paint for the season. Shorten the waiting time and manage the oven temperature within plus or minus 5 degrees of the seasonal average. Please refer to the materials for seasonal painting conditions.
basic information
Temperature-based viscosity management: dilution rate setting for summer use / furnace temperature management: plus or minus 5 degrees / response to reduced waiting time / quality confirmation through gloss measurement.
Price range
Delivery Time
Applications/Examples of results
Automotive interior and exterior parts, products requiring design features, mass production painting in summer.
Related Videos
catalog（3）
Download All Catalogs
Distributors
We are not just a "subcontracted painting factory." Established in 1958, our company has a foundation of painting technology and also specializes in chemical treatment, stripping, and cleaning, functioning as the "external surface treatment department" in your organizational chart. Based on our philosophy of "preparation is eight-tenths of the work," we emphasize participation from the "upstream process" before the drawings are finalized. We conduct test painting on a wide range of metals and difficult materials, and we produce the entire process from assembly, packaging, to delivery, thereby reducing your management workload. Additionally, by being able to perform zinc phosphate treatment in-house, we achieve stable painting quality. Furthermore, our micro-heating stripping technology, which does not use chemicals, maintains the electrical state of the "jigs (hangers)" that influence painting quality. Our approach of "pre-treatment determines painting quality" ensures the stability of the paint film during mass production. Rather than simply "applying specified standards," we work backwards to achieve optimal painting specifications and prevent scratches during transportation, sparing no effort in thorough discussions from the outset. This diligent preparation is the shortest path to preventing rework and minimizing total costs. From the development stage, please utilize the expertise of our specialists as part of your production line.