Dymax 9803 Low-Shrinkage Cationic Epoxy

Dymax 9803 is a light and/or heat-curable cationic epoxy for active alignment of camera modules, optical components, LiDAR (Light Detection and Ranging), and other ADAS (Advanced Driver Assistance Systems) assemblies used in automotive applications. The epoxy has very low volumetric shrinkage, high Tg, low coefficient thermal expansion (CTE), and was developed to meet rigorous active alignment requirements.

9803 offers the flexibility to cure very fast with broad-spectrum UV light, LED light or low-temperature heat to accommodate a variety of application needs. It has improved 185°F (85°C) /85% RH resistance, exhibits less overall movement through thermal excursions, and features higher viscosity and thixotropy to maintain bead shape upon dispense. In addition, the material can be refrigerated and shipped/stored at 33.8° to 41°F (1° to 5°C), and not frozen.

Dymax 9803 meets NASA ASTM E595 low-outgassing specifications making this solution ideal for critical optical components. Typical camera module applications include bonding the lens barrel to holder, lens bonding, and bonding the holder to printed circuit boards (PCBs).