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New Range of Optically Clear Encapsulants from Techsil® Deliver Enhanced Performance for Electronics

Techsil, the global distributor of adhesives and sealants which has built its reputation on technical excellence and customer service, has launched a new range of optically clear encapsulants for  which help deliver better performance in electronic assemblies.

The demand for encapsulants and potting materials is rising dramatically with the market size projected to reach USD 3.13 billion by 2021, registering an annual growth rate of 3.7% between 2016 and 2021 Increasing demand from the consumer electronics industry is the major driver for the potting compound market (Research and Markets report May 16).

The specifications for this market are high, with many design engineers looking for products offering brilliant long term clarity, good protection from environmental factors, along with excellent thermal characteristics. Adhesive specialists, Techsil have launched a range of four new optically clear encapsulants designed to have, in particular, an excellent refractive index and great UV stability; perfect for potting LED lighting assemblies for example.

  • RTV27844 - a crystal clear, low viscosity, 2-part silicone which cures at room temperature to a high strength rubber with a thermal conductivity of 0.45 W/mK. Used potting solar cells and assemblies where component identification is desirable.
  • PU22985 - a 2-part water clear potting polyurethane which cures to form a tough 85 Shore A material with good abrasion and hydrolysis resistance and thermal conductivity of 0.3 W/mK. Developed for potting of luminaires, LEDs and doming applications.
  • MG 8322 – a 2-part clear potting epoxy which provides a tough resilient finish to environmental and chemical ingress; used to pot LEDs and electronic assemblies in protective blocks.
  • TSE3051 – a convenient 1-part silicone which cures to a soft transparent gel. With low viscosity it is able to penetrate complex assemblies and once cured provides cushioning for delicate components and protection from humidity and dirt.

From high performance potting materials to thermal management solutions and adhesives for bonding assemblies, Techsil supply a variety of materials to provide environmental protection, extend service life and improved performance of electronic assemblies. Product chemistries include Silicones, Polyurethanes, Epoxies, Greases and Pressure Sensitive Tapes. Techsil work in close consultation with engineers to ensure the correct performance specification is achieved.

For technical assistance contact [email protected] or visit

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