Component Management

Two-part epoxy displays low thermal resistance

7th April 2015
Barney Scott
0

Featuring special high thermal conductive fillers, Master Bond EP48TC is two part epoxy paste that can be applied in bond lines as thin as 10-15μm. This material offers exceptionally low thermal resistance of 5-7 x 10-6 K•m2/W, which imparts impressive heat transfer capabilities and thermal conductivity of 2.88-3.60W/m·K, suitable for applications in the aerospace, optoelectronic and speciality OEM industries.

EP48TC has a tensile lap shear strength ranging from 900 to 1,100psi and bonds well to a wide variety of substrates, including metals, composites, glass, ceramics and many plastics. Even in thin sections, its strength retention is outstanding. It also has a low coefficient of thermal expansion, low shrinkage upon curing and excellent dimensional stability.

EP48TC offers a forgiving 100 to 40 mix ratio by weight, or 100 to 50 mix ratio by volume. The working life for a 100g batch at 24°C is 1.5-2h. The epoxy cures at room temperature or more quickly at elevated temperatures, and is serviceable over the temperature range of -173 to +149°C. The colour of Parts A and B is grey. EP48TC is available in standard packaging, ranging from half-pint to five gallon container kits.

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