FAQ Entries » Encapsulation UV Adhesives

Optimax® UV-8003 and UV-8004 light-curable resins for potting, doming, and encapsulating electronics to a tack-free, optically clear finish.

What are Optimax® encapsulation UV adhesives?

Optimax® UV-8003 (low viscosity) and UV-8004 (high viscosity) are light-curable resins for potting, doming, and encapsulating electronics. They cure to a tack-free, optically clear finish, reducing handling time and cycle delays. Unlike traditional potting systems requiring long thermal or ambient cures, UV encapsulation adhesives offer instant curing, precise control, and minimal thermal stress — ideal for sensitive electronic, optical, and micro-mechanical assemblies.

What applications are best suited for these adhesives?

PCB potting and sealing
Encapsulation of LEDs or opto components
Doming protective finishes
Automotive sensor and module encapsulation
Sensors and MEMS devices
Connectors and wire terminations
Medical electronics
Optical and photonic components

How do UV-8003 and UV-8004 differ?

UV-8003 — low viscosity for fine features or thin coatings
UV-8004 — high viscosity for thick potting or gap filling

How quickly do these resins cure?

They cure in seconds under UV/LED exposure, enabling fast throughput on production lines.

Are they suitable for automated processes?

Yes, compatible with automated dispensing and UV curing systems, ideal for high-volume electronics and automotive manufacturing.