HumiSeal silicone conformal coating

HumiSeal silicone conformal coating ist eine Art von Konforme Beschichtung based on silicone resin technology, designed to provide high flexibility, excellent temperature resistance, and long-term environmental protection for electronic assemblies. It is widely used in PCB-Montage, Prototypische PCB-Montage, und SMT-Bestückung, especially in harsh operating environments.

What is HumiSeal silicone coating?

HumiSeal silicone coatings (commonly known as the 1C series, such as 1C49 and 1C63) form a soft, elastic protective layer over printed circuit boards. Unlike rigid coatings, silicone remains flexible after curing, allowing it to withstand thermal expansion, vibration, and mechanical stress.

These coatings can be room-temperature cured, heat cured, or moisture cured, depending on the formulation and process used in SMT-Bestückung.

Key properties

HumiSeal silicone conformal coatings offer several important performance advantages:

• Wide temperature resistance (typically -55°C to 200°C or higher)
• Excellent flexibility and elasticity
• Strong resistance to thermal cycling and vibration
• Superior moisture and humidity protection
• Gute Beständigkeit gegen UV exposure and outdoor conditions
• Stable electrical insulation properties

These characteristics make silicone coatings ideal for demanding applications where reliability is critical.

How it differs from other coatings

Compared to acrylic and polyurethane coatings:

• Silicone is much more flexible and resistant to cracking
• It performs better under extreme temperatures
• It offers better long-term outdoor durability

However, it is generally:

• More expensive
• Harder to rework or remove
• Slower to cure than UV coatings

Typische Anwendungen

HumiSeal silicone coatings are commonly used in:

Kfz-Elektronik
Engine control units, sensors, and modules exposed to high temperature and vibration.

Elektronik für den Außenbereich
LED lighting, solar systems, and communication equipment exposed to humidity and weather.

Industrielle Ausrüstung
Power supplies, inverters, and control systems in harsh environments.

Luft- und Raumfahrt und Verteidigung
Applications requiring extreme reliability under thermal and environmental stress.

Unter Prototypische PCB-Montage, silicone coatings are usually selected only when the final product requires high reliability, due to their more complex rework process.

Application methods

HumiSeal silicone conformal coatings can be applied using:

• Spray coating (manual or automated)
• Selective coating systems
• Tauchbeschichtung
• Brush coating (for repair or small batches)

This flexibility allows use in both low-volume prototype production and high-volume SMT Assembly.

When to choose silicone coating

Silicone conformal coating is the best choice when:

• The product operates in high-temperature environments
• There is significant vibration or mechanical stress
• The PCB is exposed to outdoor or high-humidity conditions
• Long-term durability is more important than cost

Abschließende Einsicht

HumiSeal silicone conformal coating ist eine high-performance solution for protecting electronics in extreme conditions. In PCB-Montage, SMT-Bestückung, und Prototypische PCB-Montage, it is the preferred option when flexibility, temperature resistance, and environmental durability are critical to product reliability.

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

Angebot für Conformal Coating einholen

Möchten Sie die Zuverlässigkeit Ihrer Leiterplatten mit Conformal Coating verbessern? Senden Sie uns jetzt Ihre Daten.
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Bevorzugtes Material

• Acryl (AR)
• Silikon (SR)
• Polyurethan (UR)
• UV-härtbar - UV
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Shenzhen Tengxinjie Electronics Co, Ltd.