Selective coating with HumiSeal
Selective coating with HumiSeal conformal coating, developed by Chase Corporation, is an automated process that applies coating only to specific areas of a PCB, rather than covering the entire board. It is widely used in modern PCB-Montage, SMT-Bestückung, und Schlüsselfertige PCB-Montage for precision and efficiency.

How selective coating works
Selective coating systems use programmable equipment to control exactly where the coating is applied:
- CAD data or teaching programs define coating paths
- Robotic valves or spray heads dispense HumiSeal precisely
- The machine avoids connectors, test points, and sensitive areas
- Coating is applied in controlled patterns and thickness
This eliminates the need for extensive manual masking.
Die wichtigsten Vorteile
Hohe Präzision
- Coating is applied only where needed
- Protects critical components without affecting connectors
Reduzierte Maskierung
- Minimal use of tapes or boots
- Saves time and labor in PCB-Montage
Gleichbleibende Qualität
- Uniform coating thickness (typically 25–75 µm)
- High repeatability in SMT-Bestückung
Materialeinsparungen
- Less coating waste compared to dip or full spray methods
Faster production
- Ideal for high-volume Schlüsselfertige PCB-Montage Zeilen
Typische Anwendungen
Selective coating with HumiSeal is used in:
- Kfz-Elektronik
- Industrielle Kontrollsysteme
- LED lighting PCBs
- Unterhaltungselektronik
- Aerospace and medical devices
These applications require both protection and precision.
Selective coating vs traditional methods
- Selektive Beschichtung → precise, automated, minimal masking
- Sprühbeschichtung → broader coverage, requires masking
- Tauchbeschichtung → full coverage, less control
- Bürstenbeschichtung → manual, used for rework
Selective coating is considered the most advanced method in SMT-Bestückung.
Important process considerations
- Proper PCB cleaning before coating
- Correct viscosity settings for the machine
- Accurate programming of coating paths
- Post-coating curing (UV, thermal, or moisture)
- Inspection for coverage and defects
Schlussfolgerung
Selective coating with HumiSeal is a high-precision, automated method that applies conformal coating only where needed. In PCB-Montage, SMT-Bestückung, und Schlüsselfertige PCB-Montage, it offers superior efficiency, consistency, and cost control compared to traditional coating methods.
We support HumiSeal and equivalent konforme Beschichtung solutions for your PCBA projects.
Angebot für Conformal Coating einholen
Suchen Sie nach zuverlässigen Conformal Coating-Lösungen für Ihr PCBA-Projekt? Klicken Sie unten, um ein schnelles Angebot zu erhalten.
Senden Sie uns Ihre Anforderungen und erhalten Sie eine schnelle Antwort von unserem technischen Team.
✔ 24-Stunden-Reaktion ✔ Technische Unterstützung ✔ Klein- und Massenproduktion
Shenzhen Tengxinjie Electronics Co, Ltd.


