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News & Resources

Moisture Permeability of Silicone Systems- Case Study #1

The healthcare, electronics and aerospace industries use silicone elastomers and adhesives in a broad range of applications. Humidity control is an important parameter of concern for these applications. For instance, wound dressings must “breathe” similar to our skin to accelerate the healing process. In other applications moisture permeability can cause premature failure due to corrosion of electronic components or other means. An example would be moisture sensitive fillers and humid environments can alter the performance of the functional fillers. In Light Emitting Diodes (LEDs), phosphors added to the silicone encapsulant to make white light may absorb moisture over time, which could alter the light output of the LED.