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Two-part gels offer more processing flexibility, with the options of room temperature or heat-accelerated cure.

Gels are a special class of encapsulant that cure to an extremely soft material. They cure in place to materials and retain much of the stress relief and self-healing qualities of a liquid while providing the dimensional stability of an elastomer which is increasingly needed for delicate components. Gels have been used to isolate circuits from the harmful effects of moisture and other contaminants and provide electrical insulation for high voltages.

Another use is providing stress relief to protect circuits and interconnections from thermal and mechanical stresses. Gels are usually applied in thick layers to totally encapsulate higher architectures. More recently, gels have found application in optoelectronics due to their stress relieving capability and high refractive index, as well as the stability of these properties over time.

Features:

• Room temperature or heat accelerated cure
• Heat cure for increased processing speeds
• Low viscosity allows good flow under components