Silicone Encapsulants & Potting Compounds
The practice of using silicone in encapsulating and potting electronic components is a well-established process designed to protect
Although the end function may appear simple and straightforward the operating conditions, component design and production methods often place heavy demands on the encapsulant and require very meticulous product selection and testing. There are a variety of materials on offer including polyurethanes, epoxies, silicones and many other polymers – each system will have advantages as well as limitations. It is, therefore, important to fully understand the chemical and physical properties of each system and carefully match these to the requirements of the component and manufacturing processes.
For more information, download our guide to Silicone Encapsulants.
Why use Silicone Encapsulants?
Silicone polymers and elastomers have particular inherent physical properties including:
- Wide operating temperature range from -115 to +300ºC
- Excellent electrical properties
- Hardness range: soft gels to moderately hard rubbers
- UV resistance
- Good chemical resistance
- Resistance to humidity and water
- Ease of use
- Resistance to fungus – silicones do not promote fungus growth
These natural properties can be further enhanced using fillers and chemical additives to provide additional features when needed, including flame retardancy, thermal conductivity, electrical conductivity and adhesion. Through the selection of polymers and
Choice of Silicone Encapsulant
There are three key considerations when choosing an encapsulant for any application:
- What are the operating and environmental conditions of the finished product?
- What physical properties does the encapsulant require?
- How will you process the material?
Due to the complexity of product design and the individual manufacturing process, it may not be possible to satisfy exactly all the requirements in every area, so there may well be a need for compromise. It is therefore, important to decide which criteria are essential for product performance and longevity.
We always recommend fully testing the suitability of the material in each given application and production method employed prior to specification. In some cases, it will be possible to provide a bespoke formulation in order to match the design requirements.
Temple 4’s’ technical staff have many years of application based experience and will be happy to help with the selection process.
For further information download our Encapsulants Product Information Sheet.
|EGel3000||2-part silicone gel low viscosity|
|EGel3002||2 Part silicone gel fast cure|
|EGel3003||2 Part silicone gel low viscosity soft|
|EGel3004||2 Part silicone gel thixotropic|
|EGel3005||2 Part silicone gel low viscosity|
|EGel3100||SILCOTHERM 2 Part silicone gel|
|QGel330||Silicone gel tough high purity|
|QGel331||Silicone Gel Flame Retardant UL approved|
|QLE1102||2 Part silicone encapsulant optically clear|
|QSil12||20:1 Condensation cure silicone encapsulant clear|
|QSil216||10:1 Addition cure silicone encapsulant optically clear|
|QSil218||10:1 Addition cure silicone encapsulant optically clear|
|QSil222||10:1 Addition cure silicone encapsulant optically clear|
|QSil229||1:1 Addition cure silicone encapsulant optically clear|
|QSil550||2-Part Addition Cure Encapsulant|
|QSil553||SILCOTHERM 2 Part Addition cure silicone encapsulant|
|QSil556||2 Part Addition cure silicone encapsulant|
|QSil573||SILCOTHERM 2 Part Addition cure silicone encapsulant|
|SE2003||SILCOTHERM 2 Part Addition cure silicone encapsulant|
|SE2005||2 Part Condensation cure silicone encapsulant|
|SE2010||SILCOTHERM 2 Part silicone gap filler|
|SE2011||2-Part Self bonding potting compound|
|SE3000||SILCOTHERM 2 Part Addition cure low viscosity|
|Silcoset 101||2 Part condensation cure silicone encapsulant high temperature|
|Silcoset 105||2-part condensation cure silicone encapsulant|
Let us suggest the best solution for your particular application, from our extensive range of products and services.
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We maintain a large stock in our warehouse in Petersfield enabling fast and reliable delivery.
Unit 19, Buriton Business Park, Petersfield, Hants, GU32 3NJ
Tel: 01730 888499