Transparent conformal coating of optical assemblies such as sensors or LEDs
ELPEGUARD conformal coating SL1305 AQ-ECO
• high transparency and yellowing resistance
• individual transparent colouring in red, green or blue
• water-thinnable and fast drying
ELPEGUARD conformal coating SL1307
• high transparency and extremely high yellowing resistance
• fastest drying and easy repair - also available in handy spray tins
ELPEGUARD conformal coating SL1307 FLZ-T in cartridges
• ultra-thixotropic adjustment for high definition dispenser application of dams around plugs, components and pads to limit the application area of a subsequent conformal coating ( dam and fill)
ELPEGUARD thick film lacquers TWIN-CURE DSL 1600 E-FLZ
• high transparency and yellowing resistance
• combined with diffusor ink EH 13.400 UV extends the scattering angle of LEDs
• solvent-free, UV curing, shadow curing without additional temper step
ELPEGUARD silicone thick film lacquers DSL 1705 FLZ
• can be used at high temperatures up to 180 °C and under strong moisture stress, high chemical resistance
• addition cross linking; thermal curing; for thick film applications up to 3 mm
ELPEGUARD silicone thick film lacquers DSL 1706 FLZ
• can be used at high temperatures up to 180 °C and under strong moisture stress, high chemical resistance
• condensation cross linking at room temperature; for thick film applications up to 300 µm.
Opaque conformal coatings for optoelectronics
ELPEGUARD® conformal coatings SL 1347 and SL 1397
Selective coating with the white opaque conformal coating ELPEGUARD SL 1397 ensures maximum luminous efficacy: The LEDs are left uncoated while dark components are hidden, thus amplifying the luminous efficacy (reflectivity) considerably. As key characteristics, ELPEGUARD SL 1397 boasts very high reflectivity ratings (> 0.9 at 460 nm) along with high UV and thermal stability.
Application of the black opaque, mat conformal coating ELPEGUARD SL 1347 ensures a strong contrast to the base material. With this material, it is possible to coat selected areas of assemblies (which are usually coated with green solder resist) in black to achieve a strong contrast of the LEDs to the non-reflective base material. This is of particular advantage in applications with emphasis on high optical quality, such as information panels, traffic lights, etc.