The benefits of using micoballlons when making repair to laminated honeycom panels are 1) Improved strength to weight ratio, 2)less density, and 3) lower stress concentration.
Microballoons are hollow phenolic resin spheres with a reddish/brown coloration. This makes them ideal for cosmetic fillet joints and fillers in wood construction, as well as structural adhesives for less demanding applications on softer woods like cedar.
Meanwhile, honeycomb panels are a flat, stiff, and stable structure that can be used as a backing material for metal, glass, stone, and other decorative surfaces in construction. Wall cladding, ceilings, canopies, and elevator interiors are all examples of applications.
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