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gels advancedengineering optoelectronics




  • Two-part, 1:1 Mix Ratio (Part A: Part B) 
  •  1.52 refractive index for matching BK7
  • Cures with heat via addition-cure chemistry and will cure at room temperature
  • RoHS/REACh compliant


  • For protection of sensitive photonics assemblies from mechanical shock, thermal shock, dust, and ambient atmosphere
  • Low viscosity reduces voids in complex assemblies to fill in and permits time for any trapped air bubbles to float to the fluid surface and escape
  • For applications requiring optically clear materials with a refractive index of 1.52 at 589 nm 
  • For LEDs and display assembly

Product Details

Property Average result
Viscosity 360 cP
Appearance Transparent
Cure 30 minutes / 150 °C
Durometer 25 Type 00
Refractive Index 1.52
Specific Gravity 1.07
Comment 1.52 Refractive Index firm gel for encapsulating LEDs, and to reduce lightloss for other optical applications.
Display in metric units

The above properties are tested on a lot-to-lot basis. Do not use as a basis for preparing specifications. Please contact NuSil Technology for assistance and recommendations in establishing particular specifications.

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