The European Manufacturers Paper Honeycomb Association (EMPHA) is the pan-European association for manufacturers of paper honeycomb core products. It was founded in Amsterdam in 2010, and aims to represent the paper honeycomb industry.
Honeycomb is noted for its superior strength, rigidity and low aerial weight. Paper is a relatively low cost base material with low environmental impact. Paper honeycomb therefore is the most cost-effective core material available.
The paper honeycomb core is a series of hexagonal shaped cells, nested together creating a sheet when expanded with approximately 95% open space.