Most popular HumiSeal coating type

The most popular HumiSeal coating type used in the electronics industry is acrylic-based Conforme coating, with HumiSeal 1B31 being the most widely adopted product. It is commonly used in PCB-assemblage, Prototype PCB-assemblage, en SMT-assemblage due to its excellent balance of performance, cost, and ease of processing.

Why acrylic coatings are the most popular

Acrylic coatings dominate the conformal coating market because they offer reliable protection with simple processing requirements. In most PCB-assemblage applications, manufacturers prioritize coatings that are easy to apply, fast to dry, and cost-effective—making acrylic the preferred choice.

They provide effective protection against:

• Moisture and humidity
• Stof en verontreiniging
• Corrosion in general environments

This makes them suitable for a wide range of electronic products.

Why HumiSeal 1B31 is the industry standard

Among acrylic coatings, HumiSeal 1B31 is considered the benchmark product.

It is widely used in SMT-assemblage en Prototype PCB-assemblage because of several key advantages:

• Fast drying speed, improving production efficiency
• Single-component formulation, easy to handle and apply
• Good flexibility, reducing cracking risk
• UV traceability, allowing easy inspection under UV light
• Uitstekende herwerkbaarheid, enabling easy repair and modification

These features make it highly practical for both development and mass production.

Applications in PCB manufacturing

In PCB-assemblage, acrylic coatings like 1B31 are used for general-purpose protection in:

• Consumentenelektronica
• Power supplies and adapters
• LED lighting products
• Industriële besturingssystemen

In Prototype PCB-assemblage, it is especially preferred because engineers can easily remove and reapply the coating during testing and iteration.

In SMT-assemblage, its fast drying and compatibility with automated processes help maintain high production throughput.

Comparison with other HumiSeal coating types

While acrylic coatings are the most popular, other types are used for specific requirements:

• Siliconencoatings → best for high temperature and vibration resistance
• Polyurethaan coatings → strong chemical resistance
• UV-curable coatings (e.g., UV40) → ideal for high-speed automated production

However, these alternatives are typically selected for specialized environments, whereas acrylic coatings cover the majority of standard applications.

Why it remains the top choice

The reason acrylic coatings like HumiSeal 1B31 remain the most popular is their balanced performance:

• Lage kosten
• Snelle verwerking
• Easy rework
• Sufficient protection for most environments

For many manufacturers, this combination delivers the best overall value in PCB-assemblage en SMT-assemblage.

Definitief inzicht

The most popular HumiSeal coating type is conforme acrylcoating, with HumiSeal 1B31 as the leading product. In PCB-assemblage, Prototype PCB-assemblage, en SMT-assemblage, it serves as the default choice for general-purpose protection, offering a practical balance between performance, cost, and manufacturability.

We support HumiSeal and equivalent conformal coating solutions for your PCBA projects.

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Aanbevolen materiaal

• Acryl (AR)
• Silicone (SR)
• Polyurethaan (UR)
• UV-uithardbaar - UV
• Ik weet het niet zeker / Heb advies nodig

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