UR5638 is an optically clear / transparent polyurethane resin consisting of an aliphatic polymer designed to provide excellent UV stability while at the same time excellent transmission of the visible spectrum of light. This makes it an ideal choice for potting LEDs which operate in the visible light spectrum, in particular white LEDs. It's a tough resin which offers excellent environmental protection for both indoor and outdoor LEDs - although it is ideally suited to potting larger units due to its low exothermic values.

Tough, versatile polyurethane
Excellent colour stability
Low Exothermic Values
Ideal for potting LEDs
RoHS Compliant