Selective Coating: Precision Surface Solutions for Membrane keyboards and Overlay foils
- istvanharkai
- Jul 6
- 3 min read

When it comes to creating the perfect user interface, the devil is truly in the details. At FLEXTEC, we understand that the surface finish of your overlay foils can make or break the user experience. That's why we've perfected our selective coating technology – allowing you to apply different surface treatments to specific areas of a single overlay foil with pinpoint accuracy.
What is Selective Coating?
Selective coating is an advanced manufacturing technique that enables us to apply different surface finishes to designated areas of your overlay foil during the production process. Unlike traditional uniform coating methods, selective coating gives you the freedom to customize exactly where each surface treatment is applied, creating a truly tailored solution for your HMI needs.
Available Surface Treatments
Glare Coating
Perfect for areas requiring high visibility and clarity, our glare coating provides:
Enhanced light reflection for improved readability
Crisp, clear visual presentation
Ideal for display windows and critical information areas
Anti-Glare Coating
Designed to reduce unwanted reflections and improve usability in bright environments:
Minimizes glare from ambient lighting
Reduces eye strain for operators
Perfect for outdoor applications or well-lit industrial environments
Matt Coating
Offering a sophisticated, professional appearance:
Elegant, non-reflective surface
Excellent for premium product aesthetics
Reduces fingerprint visibility
Ideal for high-end medical and industrial equipment
Soft Touch Coating
Providing superior tactile feedback and comfort:
Smooth, pleasant feel under fingertips
Enhanced grip and control
Reduced fatigue during extended use
Perfect for frequently-touched control areas
The FLEXTEC Advantage
With over 20 years of experience in HMI manufacturing, FLEXTEC brings unmatched precision to selective coating applications. Our advanced screen printing and digital UV printing capabilities allow us to:
Achieve Micron-Level Precision: Apply coatings exactly where needed with exceptional accuracy
Maintain Consistency: Our ISO9001-certified processes ensure every piece meets your exact specifications
Optimize Functionality: Combine multiple surface treatments strategically to enhance user interaction
Reduce Costs: Eliminate the need for multiple separate components by integrating everything into one overlay foil
Real-World Applications
Medical Equipment
Anti-glare coating on display areas for clear visibility under operating room lights
Soft touch coating on frequently-used control buttons
Matt coating on non-critical areas for premium aesthetics
Industrial Control Panels
Glare coating on status indicators for maximum visibility
Anti-glare coating on operator interface areas
Soft touch coating on emergency stop button surrounds
Automotive Dashboards
Anti-glare coating on instrument cluster covers
Soft touch coating on climate control interfaces
Matt coating on decorative trim areas
Technical Excellence You Can Trust
Our selective coating process integrates seamlessly with our comprehensive manufacturing capabilities:
Screen Printing: For precise, repeatable coating application
Digital UV Printing: For complex patterns and gradients
Laser Cutting: For perfect edge definition between coating zones
Quality Control: Every piece tested for durability and environmental resistance
Why Choose Selective Coating?
Design Freedom: Create complex, multi-functional interfaces in a single component
Cost Efficiency: Reduce assembly complexity and material costs
Enhanced Durability: Each coating optimized for its specific application area
Improved User Experience: Tactile and visual cues guide user interaction
Faster Production: Streamlined manufacturing process with shorter lead times
Ready to Enhance Your HMI Design?
Whether you're developing medical instruments, industrial equipment, or automotive interfaces, selective coating can transform your overlay foils from simple protective covers into sophisticated user interface solutions.
Our team of experts is ready to discuss your specific requirements and help you determine the optimal coating strategy for your application. From prototype development to high-volume production (up to 100,000 pieces), FLEXTEC delivers the precision and quality you need.
Contact us today at info@flextec.hu to explore how selective coating can elevate your next HMI project. With our 2-4 week lead times and commitment to excellence, your perfect overlay foil solution is closer than you think.
FLEXTEC HUNGARIA KFT – Your trusted partner for advanced HMI solutions and printed electronics manufacturing.
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