Engineers often want to know whether an adhesive is low outgassing or generic. And while there are cases when nothing but a low outgassing product will do, the truth is that many so-called generic adhesives inherently have low outgassing levels. What's more, most bonding, potting, encapsulation and sealing applications don't need to meet a defined outgassing specification.
Selecting the right adhesive is a balancing act as engineers attempt to find products that meet conflicting end-use and manufacturability requirements. Medical device engineers also have to contend with a strict regulatory environment, and therefore often have the toughest time striking that balance.
Designed to mitigate the worst effects of fires, fire retardant materials play a particularly important role in aircraft construction. Used in aircraft, epoxies and silicones must maintain their primary role as adhesives or coatings while exhibiting resistance to heat and flame in accordance with government and industry specifications.
Advanced power and high frequency communications electronics have become more sophisticated. Fabricating and assembling these devices involves carefully selecting the proper adhesives, die attach compounds, glob-top encapsulants, underfills and potting compounds. Engineers must be familiar with how these systems can affect design so that they meet and exceed performance objectives.
The assembly applications for medical device manufacturers typically come with their own distinctive set of rigorous requirements. This white paper takes a closer look at one and two part silicone medical adhesives.
Forming reliable bonds between different materials can be challenging because there can be large variations in CTE's (coefficients of thermal expansion). Adhesive compounds play a critical role in the fabrication of assemblies for electronic, optical and mechanical systems.