2026-09-15
An LED lighting brand expanding into outdoor and industrial fixtures needed an encapsulation material that would protect drivers and LED modules from moisture, heat, and UV exposure — while preserving optical clarity over years of service.
The brand's fixtures were specified for long service life, so any material that clouded, cracked, or discolored would undermine both performance and premium positioning.
Field tests of the brand's earlier fixtures showed that a standard resin clouded and cracked within two years, and batch variation occasionally caused voids that triggered rework.
The brand partnered with a silicone materials supplier that formulates RTV-2 systems in-house. An optically clear, UV-stable silicone grade with moderate thermal conductivity was selected, and viscosity and cure time were matched to the client's production line.
| Parameter | Value |
|---|---|
| Optical clarity | UV-stable, non-yellowing |
| Thermal conductivity | 1.0 W/m·K |
| Hardness | Shore A 30 |
| Operating range | -50°C to 200°C |
The supplier provided samples and application support, helping the client validate the material on its own fixtures. Batch-to-batch consistency was confirmed against reference data before the material was released to volume production, and dispensing parameters were optimised for the line.
Silicone stays flexible across a wide temperature range and resists UV without yellowing, which is essential for fixtures that must remain clear for years. Its low-stress cure also protects delicate wire bonds and LEDs, reducing the risk of micro-cracks that lead to premature failure.
With a stable material and a responsive supplier, the brand expanded its outdoor range without redesigning the encapsulation process. The supplier remains a long-term partner as new fixture families are developed.
The switch also simplified production. Because the material's cure profile matched the line's cycle time, the client reduced wait time and rework, and operators found the process easier to control consistently across shifts. Ongoing technical support helped the team fine-tune parameters as fixture designs evolved.
For LED products, the supplier matters as much as the material. A dedicated led potting compound factory can tailor optical, thermal, and cure properties to a specific fixture — improving both reliability and production efficiency.