Manufacturing / Production Technology, Hardware & Services


Thermal gap filler

1 January 2020 Manufacturing / Production Technology, Hardware & Services

Electrolube has introduced a versatile new range of gap-filling products with excellent thermal performance. GF400 is a two-part, liquid silicone-based gap filler, which can either be cured at room temperature or accelerated with heat. Following cure, GF400 forms a low-modulus elastomer that prevents the ‘pump-out’ phenomenon, ensuring minimal degradation of effective heat dissipation.

Thermal gap fillers are widely used for mobile and touchscreen applications, however, the GF400 range is highly adaptable and can be used in a multitude of applications from printed circuit board assembly and housing electronic components discretely to automotive electronics, including HEV and NEV batteries, power electronics, LEDs and fibre-optic telecoms equipment.

GF400 is soft and compliant, making it ideal for low stress applications. It has a straightforward mix ratio of 1:1 and a fast cure time of 20 minutes at 100°C. Alternatively, it can be cured at 25°C for 12 hours or 90 minutes at 60°C.


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