HumiSeal - Conformal coating

Everything you need to know about Conformal coating!

Selecting a conformal coating is not simply a purchasing decision; it is a strategic choice that impacts your long-term reliability and Total Cost of Ownership (TCO). To succeed, manufacturers must evaluate the technical depth, requirements and on-site support of their supplier. Together with HumiSeal we will help you find the right solution.

Different chemistries offer distinct advantages that must be weighed against production capabilities:

• Acrylics - Offer excellent moisture resistance.
• Urethanes - Offer superior chemical resistance.
• Synthetic Rubbers - When applications requiring high thermal shock resistance.
• UV Curable - The gold standard for high-throughput manufacturing.

UV-curable and synthetic rubber coatings typically provide stronger moisture barriers and higher operating temperatures than traditional acrylics.

To improve productivity, you must evaluate the application method and drying/curing requirements:

• Cycle Time: Solvent-based coatings require time for solvent evaporation (flash-off) before curing. UV coatings eliminate this bottleneck but require precise process control.
• Masking Requirements: High-viscosity or gel materials can create dams around keep-out areas, reducing the need for manual masking tapes.
• Throughput: Automated selective coating (film coat or spray) offers high repeatability and speed compared to manual spraying, but requires a material with consistent viscosity to prevent nozzle clogging and uneven coating coverage.

Ready to optimize your coating process? Contact us at ESD-Center today for expert advice!