Thickness of HumiSeal coating
The typical thickness of HumiSeal konform beläggning, produced by Chase Corporation, ranges between 25 µm and 75 µm (microns). This range is widely used in Montering av kretskort, SMT-montering, och Nyckelfärdig PCB-montering to balance protection, performance, and cost.

Standard thickness range
Most HumiSeal coatings are applied within:
- 25–50 µm → Common for general electronics protection
- 50–75 µm → Used in harsher environments (high humidity, chemicals, vibration)
This thickness is enough to provide effective insulation and environmental protection without affecting component function.
Thickness depends on coating type
Different HumiSeal chemistries may require slightly different thicknesses:
- Akrylbeläggningar → typically 25–50 µm
- Uretanbeläggningar → often 30–75 µm for stronger chemical resistance
- Silikonbeläggningar → may go thicker (up to ~100 µm) for high-temperature or flexible applications
Application method impact
The final coating thickness also depends on how it is applied:
- Spray coating (manual or selective) → most consistent thickness control
- Doppbeläggning → thicker and less uniform layers
- Beläggning med pensel → less precise, used for rework or small batches
Automated selective coating systems in SMT-montering lines ensure more consistent thickness control.
Why thickness matters
Proper coating thickness is critical:
- För tunn
- Insufficient moisture and corrosion protection
- Lower insulation performance
- För tjock
- Risk för sprickbildning eller delaminering
- Can affect connectors, test points, or heat dissipation
Maintaining the correct thickness ensures optimal reliability in Montering av kretskort.
Industry standards reference
Typical thickness guidelines follow standards such as:
- IPC-CC-830 (qualification for conformal coatings)
- Internal process specs in Nyckelfärdig PCB-montering manufacturing
These standards help ensure consistent coating quality and performance.
Slutsats
HumiSeal conformal coating is usually applied at 25–75 µm thickness, depending on material type, environment, and application method. In Montering av kretskort, SMT-montering, och Nyckelfärdig PCB-montering, controlling coating thickness is essential for achieving reliable protection without compromising performance.
Få en offert på Conformal Coating
Har du särskilda krav på beläggning? Skicka oss dina PCB-filer för utvärdering.
Skicka oss dina krav och få ett snabbt svar från vårt ingenjörsteam.
✔ Svar 24 timmar om dygnet ✔ Teknisk support ✔ Små- och massproduktion
Shenzhen Tengxinjie Electronics Co, Ltd.



