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Techsil’s New Opalescent PU Potting Resin for LEDs Gives Diffused Light Effect

Published on 2017-10-17. Author : SpecialChem

From high performance LED chip packaging encapsulants and potting materials to thermal management solutions and adhesives to bond lighting assemblies, Techsil provide a variety of materials to provide environmental protection, extend service life and improve light performance. Product chemistries include Silicones, Polyurethanes, Epoxies, Greases and Pressure Sensitive Tapes.

New Opalescent PU Potting Resin for LEDs Gives Diffused Light Effect
New Opalescent PU Potting Resin for
LEDs Gives Diffused Light Effect

New Pearl PU Resin


  • A rising star in Techsil's portfolio is PU23955 – a new pearl PU resin used to encapsulate electronic devices containing LEDs. 
  • It cures to a tough, scratch resistant, opalescent material that diffuses transmitted light.
  • The cured resin allows high transmission of diffused light but hides the underlying electronic components offering the electronics environmental and visual protection.

Techsil PU23955 is a 2-part flexible 55 shore D pourable potting polyurethane which cures to a translucent material that is stable in UV light. Once mixed, the system reacts at room temperature to produce a tough abrasion resistant material with good hydrolysis resistance.

There are many applications for this product including assemblies, tracks, LED arrays, luminaires, uplights and lighting.

Product Benefits


  • Opalescent in color
  • Excellent UV stability
  • Non-toxic
  • Water resistant
  • Tough & abrasion resistant


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Source: Techsil
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