Order before 3pm for next working day UK delivery. Contact us for international shipping.
Order before 3pm for next working day UK delivery. Contact us for international shipping.

Opti-tec 4220 Semi-opaque, Translucent Polyurethane Encapsulant for Electronics and LED Potting

From £15.00 (£18.00 inc. VAT)

Opti-tec™ 4220 is a two-part, flexible, room temperature curing polyurethane resin, designed for potting, encapsulation and protection of LED arrays and other lighting products. Opti-tec 4220 cures to form a semi-opaque, milky, translucent material (opalescent) which still allows a high transmission of light. It provides aesthetically pleasing encapsulation, hiding underlying electronics and providing a diffuse light. The material is suitable for outdoor use, with excellent weathering properties; it is formulated with UV resistant materials and includes UV stabilisers.

An evaluation kit is available which includes one 50g cartridge, supplied with a dispensing gun and mixing nozzles.

  • Cures to form milky, opalescent plastic
  • Conceals electronics whilst giving high light transmission
  • Can be used outdoors – excellent long term UV stability and weather resistance
  • Scratch and mark resistant
  • Low viscosity – easy to mix and process
  • High mechanical strength
  • Non-toxic
  • Cures to form milky, opalescent plastic
  • Conceals electronics whilst giving high light transmission
  • Can be used outdoors – excellent long term UV stability and weather resistance
  • Scratch and mark resistant
  • Low viscosity – easy to mix and process
  • High mechanical strength
  • Non-toxic
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Not sure if this is what you need?

Our technical sales team is on-hand to discuss your application and provide advice and recommendations. Call us at 01865 842842, Monday to Friday 9am - 5pm, or email us at info@intertronics.co.uk. Check out intertronics.co.uk for more information.

Statements, technical information and recommendations contained herein are based on tests we believe to be reliable but they are not to be construed in any manner as warrantees expressed or implied. The user shall determine the suitability of the product for his intended use and the user assumes all risk and liability whatsoever in connection therewith.

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