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Design more durable, vibration resistant, moisture proof circuit boards at a savings of up to 80% with Epoxies, etc… revolutionary breakthrough potting compound. The new 20-2353 solves the problem of electronic components that require protection against moisture, thermal shock, vibration and very low temperatures. (White Paper)

So what makes 20-2353 so superior to previous compounds? Three things:

• Wide Temperature Range - This two-part system has been engineered to maintain its integrity over a wide operating temperature range (-40°C to +125°C) and is an excellent alternative for expensive silicones, which work well in high operating temperatures and provide a low durometer, but do not provide good adhesion.
• Moisture Resistant - With the new 20-2353, the engineers at Epoxies, etc… have designed a polyurethane that provides outstanding moisture resistance and far exceeds the 28-day requirement of the Naval Avionics test. Conventional polyurethanes can be formulated to be flexible or rigid and have a low peak exothermic temperature during cure, but these conventional polyether and polyester urethanes can be penetrated by water, especially at high temperatures. The hydrocarbon backbone in the 20-2353 imparts hydrolylitic stability and low moisture permeability, surpassing that of any other urethane. There are no ester or ether linkages to hydrolyze in these formulations so electronic insulation and integrity is maintained in the presence of moisture, even at elevated temperatures.
• Maintains Flexiblity - The 20-2353 compound maintains its flexibility over a wide temperature range, does not become brittle until -70º F and has an elongation of 130% at -20º F, which means that the circuit boards in your end product will be highly resistant to thermal shock & vibration, be more durable and last longer. The potting material actually creates a cushioning medium and allows encapsulation of delicate electronic components in a stress free environment.

The benefits of this breakthrough combination of properties make 20-2353 the best choice for applications such as:

• Aerospace electronics
• Marine electronics
• Outdoor electronic assembly
• Military/Defense

…and many more!

Samples are available and ship within three business days.