Preprocessing service - List of Manufacturers, Suppliers, Companies and Products

Is the paint peeling due to insufficient pre-treatment?

Most paint peeling is caused not by the paint itself but by inadequate pre-treatment. This explains the poor adhesion due to insufficient degreasing and chemical treatment.

Paint peeling is a typical defect caused by issues in the pre-painting process, such as insufficient degreasing or inadequate chemical treatment. If press oil or cutting oil remains during curing, the oil will volatilize at around 180 degrees, creating tiny spaces between the paint film and the substrate. As a result, peeling occurs due to vibrations or impacts. Even if the surface looks clean, there may still be residual oil or oxidation films, making it important to manage the numerical values of pre-treatment conditions.

Company：永和工芸
Price：Other

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The relationship between blister defects and moisture.

Blistering defects may be caused by moisture or corrosion rather than paint. I will explain the phenomena occurring within the paint film.

Blistering is a defect where the surface of the coating swells, which can lead to peeling or the recurrence of rust over time. The main causes are moisture or foreign substances remaining inside the coating. If moisture is left due to insufficient drying or inadequate chemical treatment, it can combine with moisture that has entered from the outside, creating pressure within the coating. Since the cause is not easily identifiable by just looking at the surface, it is important to check the pretreatment process and drying conditions.

Company：永和工芸
Price：Other

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Insufficient cleaning is the cause of all painting defects and the truth behind recontamination.

Post-cleaning environmental management determines the quality of the coating.

**Problem** Insufficient cleaning causes residual oil and contaminants on the surface, leading to poor adhesion. **Causes and Issues** - Recontamination occurs due to leaving the surface after degreasing. - Dust and oil from the environment adhere to the surface. - Insufficient cleaning does not provide a fundamental solution. - If drying is inadequate, moisture remains. - Secondary contamination occurs over time. **Management Standards and Guidelines** It is recommended to paint immediately after cleaning. Minimizing idle time is crucial to prevent recontamination. Environmental management is also a prerequisite. **Improvement Examples and Effects** By strictly managing the cleaning process, defects caused by recontamination can be reduced. Adhesion significantly improves, and the quality of the paint film stabilizes.

Company：永和工芸
Price：Other

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Preprocessing service - List of Manufacturers, Suppliers, Companies and Products | IPROS GMS

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Is the paint peeling due to insufficient pre-treatment?

The relationship between blister defects and moisture.

Insufficient cleaning is the cause of all painting defects and the truth behind recontamination.

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