TECHNOMELT® AS 4226

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Case molding material for PCBs and electronic components

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Technomelt AS 4226 is a UV-stabilized thermal plastic material designed for molding. It is used in applications in which optical transparency is important to the functionality of the device. The low application temperatures make TECHNOMELT® AS 4226 ideal for sensitive electronic components such as sensors. The unique design of the material allows for long-term exposure to UV light with minimal change to clarity or color. This makes the material ideal for applications for in-cabin automotive sensors and industrial components.

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Product Features

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• Ultra-clear, optically transparent
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• Watertight encapsulant
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• One-component product / no mixing
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• Fast and easy process
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• Thermally stable from -40°C to 85°C
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• Low moisture uptake
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• Good adhesion to PCBs and components
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Technical data

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Service Temperature Range, °C	-40 to 85
Temperature Creep Resistance, °C	110
Viscosity @ 220°C,  mPa• s	16,750

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Physical properties

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Softening Point, °C	165
Shore D Hardness	45
Yield Strength, N/mm²	5
Break Strength, N/mm²	10
Elongation, %	250
Glass Transition,  °C	-15

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