EconCore N.V. products

Polypropylene (PP) honeycomb cores are a strong but flexible lightweight material that provides optimal mechanical performance in composite sandwich structures. ThermHex Waben GmbH produces a broad range of high quality, durable and economic core products with a standard density of 80 kilogram per cubic meter (4.0 Lbs / ft³). For applications with lower requirements to compression strength, ThermHex offers a lighter core with a density of 60 kilogram per cubic meter (4.0 Lbs / ft³). ThermHex honeycomb cores are available in thicknesses from 3 mm to 28 mm with cell sizes from 3 mm to 9.6 mm. Standard thicknesses are 3.5, 6, 10, 12, 15, 20, 23 and 28 mm. ThermHex PP honeycomb cores are produced in a continuous in-line production process by extrusion of a polypropylene film, vacuum forming and folding and includes also the lamination of non-woven layers and barrier films onto the core.

Thermoplastic sandwich panel with PP honeycomb core and glass fiber/PP-skins. Advantages: Weight savings of up to 80% compared to monolithic material possible, Major cost reduction, High bending stiffness, High compressive and shear strength, Energy absorbent, Resistant to moisture, acids and bases, Easy resource-friendly converting. The PP honeycomb sandwich panel is a semi-finished panel that consists of two thin skin layers of fiber reinforced thermoplastic composites (organosheet) spaced by a  thermoplastic honeycomb core to provide high stiffness at minimal weight, without the need of incorporating additional stiffening ribs as often required for parts based on monolithic organosheet.