Gas emission, or outgassing, is a silent problem in sectors such as optics, semiconductors, and the aerospace industry. Conventional adhesives release volatile molecules through a weak polymer network, contaminating lenses, sensors, and circuits. This phenomenon can degrade the performance of high-precision equipment, generating failures that are difficult to trace.
Crosslinking: the key to retaining volatiles 🔒
To prevent this, low-outgassing adhesives use a highly crosslinked structure. This dense three-dimensional network traps volatile molecules inside, preventing them from escaping into the environment. They comply with strict standards such as those from NASA, which require minimum contamination levels. In optical components or satellites, this property is critical for maintaining long-term clarity and reliability.
The glue that doesn't let out even a whisper 🤫
Meanwhile, generic adhesives seem to have a life of their own: they release molecules as if exhaling a chemical sigh. If your lens starts to fog up for no reason or your satellite loses signal, it might not be the space weather's fault, but rather a talkative glue. With low-outgassing adhesives, at least you know that what they bond stays quiet.