Measures against blisters in metal baked coatings
Blisters that occur in metal baked coatings. This explains the corrosion that progresses within the paint film and the importance of pre-treatment.
Blisters that occur in metal baked coatings are defects where the surface of the coating swells like a water bubble. Even if there are no issues immediately after painting, they can appear months to years after delivery. The main causes are moisture or foreign substances that could not be removed during pretreatment, and reduced adhesion due to insufficient chemical treatment. When moisture or oxygen penetrates between the coating and the metal, internal corrosion progresses, and the swelling becomes visible due to osmotic pressure. To enhance long-term durability, it is important to manage the entire process, including degreasing, washing, chemical treatment, and drying.
basic information
Metallic baked coating, blistering, moisture, internal corrosion, chemical treatment, corrosion resistance.
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Applications/Examples of results
Outdoor use products, automotive parts, home appliances, blister prevention for metal enclosures.
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