Epoxy Conforms to Medical and Food Standards

The Master Bond EP21LV epoxy features a low viscosity and excellent electrical insulation properties and is suitable for potting and encapsulation applications. It can be used in the medical and food industries as it conforms to USP Class VI and Title 21, US Code of Federal Regulations, FDA Chapter 1, Section 175.105 requirements. Offering a 1:1 mix ratio by weight or volume, the EP21LV epoxy cures at room temperature in 24-36 hours or faster at elevated temperatures.

The rigidity of the system's cure can be altered by adjusting its mix ratio. For example, by adding more of Part A (such as in a 2:1 ratio), users will get a more rigid cure. Switching to a 1:2 mix ratio yields a more forgiving cure with improved impact resistance, according to the company. Serviceable over a temperature range of -65F to +250F, the epoxy features a long working life of 60-75 minutes for a 200g mass. The EP21LV bonds well to a variety of substrates, including metals, glass, wood, rubbers, ceramics and many plastics.

It resists thermal cycling as well as water, oils, fuels, bases, acids and salts. The EP21LV produces durable bonds with a tensile strength of 7,600psi, a shear strength of more than 2,900psi and an elongation of 4.8 per cent at +75F. This versatile two-component epoxy has a volume resistivity of 1,015ohm-cm and a coefficient of thermal expansion of 53in/in x 10-6/C. In addition to its standard amber-clear colour, the EP21LV is available in a variety of alternative colour options. Parts A and B come in pint-, quart-, gallon- and five-gallon-container kits. Master Bond's EP21LV has been developed to provide high-performance bonding, sealing, coating, encapsulation and casting.

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