Important before Coating

Cleaning is a critical step before applying Conforme coating in PCB-assemblage en SMT-assemblage. It ensures that the coating can properly adhere to the PCB surface and deliver reliable, long-term protection.

Ensures proper adhesion

Contaminants such as flux residues, oils, and dust can prevent Conforme coating from bonding to the PCB surface.

• Poor adhesion can cause peeling or delamination
• Coating may lift around components or edges
• Protection becomes unreliable over time

A clean surface allows the coating to form a strong, uniform bond.

Prevents corrosion under coating

If contaminants remain trapped beneath the Conforme coating, they can react with moisture and lead to corrosion.

• Ionic residues can attract moisture
• Corrosion may develop under the coating layer
• Failures may occur even if the coating looks intact

Cleaning eliminates these hidden risks in PCB-assemblage.

Improves electrical reliability

Residues left on the PCB can affect electrical performance.

• Cause leakage currents
• Reduce insulation resistance
• Lead to short circuits or signal instability

Proper cleaning ensures stable electrical behavior after coating in SMT-assemblage.

Avoids coating defects

Dirty surfaces can result in coating application issues such as:

• Bubbles or voids
• Uneven thickness
• Poor surface coverage
• Fish-eyes (coating separation spots)

Cleaning ensures a smooth and consistent Conforme coating layer.

Enhances long-term durability

A well-cleaned PCB allows the coating to perform effectively over time.

• Better resistance to humidity and chemicals
• Improved lifespan of electronic products
• Minder onderhoud en storingen

This is especially important in harsh environments.

Supports quality standards and compliance

In high-reliability industries, cleaning is required to meet quality standards.

• Ensures compliance with IPC and industry guidelines
• Enables accurate inspection and testing
• Reduces risk of product recalls or failures

Cleaning is a key quality control step in professional PCB-assemblage processen.

Eindconclusie

Cleaning before Conforme coating is essential because it ensures proper adhesion, prevents corrosion, improves electrical reliability, and avoids coating defects. In PCB-assemblage en SMT-assemblage, skipping or poorly performing this step can lead to serious performance issues and reduced product lifespan. Proper cleaning is the foundation of a successful coating process.

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