The reason blisters increase in summer is due to moisture and temperature.
Even if the products are in good condition at the time of shipment, blisters are likely to appear a few weeks later during the summer. This explains the causes and countermeasures.
Since summer began, have you noticed an increase in blister formation? The cause may be the combination of moisture and high temperatures. In an environment with 80 percent humidity, the blister formation rate is twice that of normal. ────────────── ■ Causes of Occurrence Summer is a season when the moisture remaining in the material and the high temperatures during curing tend to act simultaneously. Moisture rapidly vaporizes during curing, pushing up the coating film and creating blisters. ■ The Truth There are cases where blisters occur only in summer, even though there were no issues under the same pre-treatment conditions in winter. This is often fundamentally due to seasonal differences in humidity. ■ Improvement Measures In summer, extend the drying time after pre-treatment and, if possible, add a pre-baking process. Gradually increasing the curing temperature instead of raising it sharply is also effective. Please utilize the materials for blister prevention during the summer.
basic information
Drying time after pretreatment: Extended for summer / Pre-baking process: 100 degrees, 5-10 minutes / Baking temperature rise: Gradual temperature increase recommended / Seasonal quality control
Price range
Delivery Time
Applications/Examples of results
Automotive parts, pressed products, cast products, mass production painting in summer.
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