LED & Optoelectronics | Conformal Coating, Parylene & ProShieldESD

Optical Clarity with Long-Term Protection

Our LED & optoelectronics conformal coating and Parylene solutions protect optics, drivers, and mixed-signal boards
against moisture, corrosion, and ESD without compromising light output. Ultra-thin, uniform films preserve optical clarity,
colour stability, and thermal performance across luminaires, displays, sensors, and optoelectronic modules.

For reference frameworks, see IPC, IEC, and the ESD Association (ANSI/ESD S20.20).

Macro close-up of glowing blue LED array on PCB with transparent Parylene protective coating

LED & Optoelectronics Conformal Coating Challenges

  • ✅ Preserving optical clarity and lumen output over life
  • ✅ Resisting moisture, condensation, and corrosion in indoor/outdoor use
  • ✅ Managing thermal paths and LED junction temperatures
  • ✅ Maintaining colour stability and avoiding yellowing/haze
  • ✅ Selective masking of lenses, windows, and connectors

LED & Optoelectronics Conformal Coating & Parylene Solutions

Conformal Coatings for Drivers & Boards

Liquid coatings offer scalable, cost-effective protection for LED drivers, control boards, and power stages.

  • ✅ Acrylic – Fast, economical moisture barrier for indoor/outdoor luminaires
  • ✅ Silicone – Thermal cycling and vibration resilience; good high-temp stability
  • ✅ Urethane/Epoxy – Chemical resistance for harsh or industrial atmospheres

Explore: Conformal coatings

Parylene for Optics, Sensors & Fine Features

Parylene provides ultra-thin, uniform, pinhole-free films with excellent optical and moisture barriers.

  • ✅ Optically clear protection for lenses, light pipes, and windows
  • ✅ True conformality over edges, cavities, and microstructures
  • ✅ Grades N/C/D/F tuned for clarity, moisture, and chemical resistance

Explore: Parylene Coating

ESD Control with ProShieldESD

Production and service areas benefit from durable conductive-polymer coatings to prevent static damage.

  • ✅ ESD-safe floors, walls, benches, fixtures, and packaging
  • ✅ Complements board-level coatings to reduce latent ESD failures
  • ✅ Supports ANSI/ESD S20.20 programmes

Explore: ProShieldESD

Services & Support for LED/Opto Programmes

  • ✅ Subcontract coating for prototypes and production
  • ✅ Process development, equipment, and operator training
  • ✅ Metrology: thickness, adhesion, ionic contamination, visual QC

Contact: SCH Services

Learn more about our LED & optoelectronics conformal coating capabilities.

Standards & Compliance (IPC / IEC / ESD)

  • 📘 IPC guidelines incl. IPC-CC-830 and IPC-A-610 (project-specific)
  • 📘 IEC frameworks for electronics and lighting
  • 📘 ESD Association – ANSI/ESD S20.20 compliant control programmes

LED/Opto Coating Process

  1. Assessment & Selection: optical constraints, environment, materials & test plan
  2. Masking & Prep: custom boots/shapes/tapes, cleaning, bake-out
  3. Application: spray, dip, or Parylene deposition with in-process controls
  4. Cure & De-mask: thermal/UV cure, careful removal, touch-up as required
  5. Inspection & Test: thickness, adhesion (cross-hatch), ionic & visual checks
  6. Documentation: travellers, inspection records, quality packs

Benefits of LED & Optoelectronics Conformal Coating

  • ✅ Clear, thin protection that preserves lumen output and colour
  • ✅ Robust moisture and corrosion resistance for long life
  • ✅ Lightweight alternative to potting/encapsulation
  • ✅ Consistent, traceable processes suitable for audits

Example Application / Case Study

  • 🎯 Objective: Protect outdoor architectural LED modules from condensation and corrosion
  • 🧪 Approach: Silicone coat on drivers and boards; Parylene on optics and connectors; verified for enclosure/environmental targets
  • ✅ Result: Stable lumen output and colour with improved field reliability

Talk to an Expert

Next step: Share your drawings, BOM, and optical/thermal targets for a tailored LED/opto coating plan.

📞 +44 (0)1226 249019 | ✉ sales@schservices.com | 💬 Contact us

Related solutions: Conformal coatings · Parylene · ProShieldESD

FAQs

Will coatings reduce light output or change colour?

We use optically clear, thin films and mask optical surfaces where necessary. Parylene and selected silicones preserve output and colour stability.

Can you coat optics without haze or yellowing?

Yes—material selection and controlled cure prevent haze/yellowing. Parylene is inherently clear and non-yellowing under normal conditions.

What thickness do you recommend for LED/opto assemblies?

Typically 25–50µm for liquid coatings; 10–20µm for Parylene, adjusted for optical and thermal constraints.

Why Choose SCH Services?

Partnering with SCH Services means more than just outsourcing — you gain a complete, integrated platform for
Conformal Coating, Parylene & ProShieldESD Solutions, alongside equipment, materials, and training, all backed by decades of hands-on expertise.

  • 💡 LED & Opto Expertise – Proven on luminaires, displays, sensors, and optical modules.
  • 🛠️ End-to-End Support – Selection, masking, application, inspection, ProShieldESD integration.
  • 📈 Scalable Solutions – Prototype to high-volume deployment with documentation.
  • 🌍 Global Reach – Responsive technical support across Europe, North America, and Asia.
  • ✅ Proven Reliability – Quality and consistency across services and materials.

📞 Call: +44 (0)1226 249019
✉ Email: sales@schservices.com
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