03 Nov 2023 Master Bond EP30-2LB is an optically clear epoxy that does not permit UV light transmission. EP30-2LB is a user friendly system that has a non-critical ten to one mix ratio by weight. EP30-2LB cures readily in 24-48 hours at room temperature or more rapidly at elevated temperatures, e.g. 2-3 hours at 150-200°F. The optimum cure is overnight at room temperature followed by 2-3 hours at 150-200°F. This epoxy flows smoothly and evenly after mixing, and is easily applied as an adhesive, coating or potting material.
The most special feature of EP30-2LB is its optical transmission profile. As mentioned above it blocks UV light from 200 nm to about 400 nm and transmits well from 450-900 nm and above. EP30-2LB has a number of other appealing attributes. It has excellent physical strength properties and is a strong and reliable adhesive. It bonds well to a wide variety of substrates including metals, composites, glass, ceramics and many rubbers and plastics. Electrically, it is an excellent insulator. It is very dimensionally stable and has low shrinkage upon curing. EP30-2LB is highly resistant to water, oils, fuels, acids, bases and many solvents. Upon mixing, it is optically clear with a slight amber tint. The service temperature range is -80°F to +300°F. EP30-2LB can be used in optical applications where light transmission between visible and near IR is needed but blocking out UV light is an important requirement.
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