LED Protective coatings

LED assemblies can be protected against moisture and other weather conditions by applying the convenient yellowing-resistant ELPEGUARD® conformal coatings.

ELPEGUARD® Twin-Cure®, the world's first thick film coating with two curing mechanisms (UV cure and moisture reaction in shaded areas), is awarded the Research and Innovation Prize by the German Chamber of Industry and Commerce and qualified by Daktronics for coating scoreboards. When exposed to high climatic stress, LEDs can be reliably protected with the ELPEGUARD® Twin-Cure® thick film coatings. UV curing enables rapid handling, and curing under components takes place by subsequent chemical crosslinking.

Encapsulate LEDs with the crystal-clear ELPECAST® casting compounds to meet high requirements of optical properties and protection against corrosion due to weathering and moisture, in particular in aggressive environmental conditions such as moisture, frost and direct sunlight.

Yellowing resistant PCB Coatings for lighting applications.

Peters develops yellowing-resistant products for lighting applications for instance ELPEPCB® Elpemer® pure white solder masks for substrate coating and white casting compounds for the protection of lighting electronics.

Selection of Peters lighting solutions:

Transparent conformal coating solutions for optical components

> ELPEGUARD® thick film coating Twin-Cure® DSL 1707 FLZ

• can be used at high temperatures up to 180 °C and under strong moisture stress, high chemical resistance

• UV curing, shadow curing without additional tempering, microencapsulation of small components possible

>  ELPEGUARD® ​conformal coating SL 1307 family

• high transparency and extremely high yellowing resistance

• fastest drying and easy repair - also available in handy spray tins

> ELPEGUARD® Dam-and-Fill Gels SL 1307 FLZ-T and SL 1307 FLZ-HT in cartidges

• (highly) 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 coating Twin-Cure® DSL 1600 E-FLZ

• high transparency and yellowing resistance

  solvent-free, UV curing, shadow curing without additional tempering

> ​ELPEGUARD® Thick film coating 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

Opaque black & white coating solutions for LED assemblies

High luminous efficacy by use of white opaque conformal coatings with high reflectivity and strong contrast of the LEDs to a black opaque conformal coating on the substrate. Good protection against humidity and other environmental influences.

> Black ELPEGUARD conformal coating SL 1347

• reliable protection and enhanced contrast of the LEDs to a non-reflective background through selective application of a black opaque, mat conformal coating

• high luminous efficacy and reliable protection against moisture through selective application of a white opaque conformal coating. The LEDs are left uncoated, dark components are hidden and the luminous efficacy is amplifed by the extremely high reflectivity
• high UV and thermal stability.

Clear encapsulation of optical components

Excellent weathering resistance and UV light stability, high transparency and yellowing resistance, protection against humidity and other environmental influences.

• For high reliability of LED light strips and bright profile letters
• colourless and crystal clear, excellent transparency, for highest demands on optical properties 
• very good weather resistance, excellent UV light stability and good thermal resistance
• selected adjustments suitable for underwater use
• light diffusing effect or colouration by the addition of hazing paste or dyestuff concentrate opaque top coat VT 3492 LS for even light diffusion

• based on VT 3402 KK
• bright dazzling colours
• gloss and high luminosity which can be reinforced by backlighting