Paint stretches and adheres like threads from the gun. The stringing is stopped by the viscosity and the evaporation rate of the solvent.
The moment it is blown, the paint stretches like a thread and adheres to the product. It is not a malfunction of the gun, but rather the condition of the paint. ────────────── ■Cause of Occurrence If the viscosity is too high, the paint does not become mist and is stretched into threads. If the solvent evaporates too quickly, it can solidify in mid-air and create threads. ■Truth A difference of just 5 degrees in temperature visibly changes the viscosity. Using paint that is cold in the morning without adjustment increases the viscosity. Continuing to use fast-drying thinner with a summer mindset can have the opposite effect in autumn and beyond. ■Improvement Measures Before use, adjust the paint temperature to around 20 degrees and check the viscosity with a viscometer each time. Use standard and slow-drying thinners according to the temperature range. Please utilize the materials for viscosity management and thinner selection.
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basic information
Construction method: Solvent-based baked coating / Paint temperature management: Around 20 degrees / Viscosity management: Measured every time using a Ford cup / Thinner: Differentiated use of standard and slow-drying products based on temperature zones / Film thickness: 20-40 microns
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General parts for solvent-baked painting, including automotive parts, industrial machinery parts, and store fixtures. We have a track record of standardizing viscosity measurement and thinner selection as a countermeasure against appearance defects caused by stringing.
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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.
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