Polypropylene honeycomb core NIDAPLAST 8DB

made of thermo-hardening plasticfor sandwich panelslightweight

Nidaplast 8DB is a polypropylene honeycomb core designed to facilitate production of shaped and curved composite parts. A checker-cut pattern (30 × 30 mm) on one face eases bending and forming of curved sandwich components.

Overview

• Checker-cut pattern: 30 × 30 mm on one face to enable shaping of curved components.
• Core type: structural polypropylene honeycomb used as the core material for sandwich/composite panels.

Processing

• Primary manual processing methods: direct lamination (hand lay-up) and simultaneous spray-up (chopped fibers + thermosetting resin sprayed). Processes are performed at room temperature without pressure; they are simple to implement, have low tooling cost and allow production of very large, lightweight parts. Check compatibility with specific resin formulations before use.
• Polyester non-woven (45 g/m²) thermowelded to the honeycomb surface provides an ideal surface for bonding or impregnation with thermosetting resins (polyester, epoxy, phenolic…). A plastic film (50 µm) beneath the non-woven seals the cells and limits resin/adhesive consumption.

Main applications

• Core material for sandwich panels and composite parts where curved or shaped components are required.
• Lamination and spray-up manufacturing of large, lightweight composite structures (nautical, transport, building façades, pools, wind components, etc.).

Technical specifications

• Panel size: 2500 × 1220 mm (useful area ≈ 3.05 m²).
• Available thicknesses: 10 mm, 15 mm, 20 mm, 25 mm, 28 mm (other thicknesses on request).
• Cell size: 8 mm.
• Honeycomb density: 65 kg/m³.
• Compression strength: 1.2 MPa (≈ 120 tonnes/m²).
• Indicative areal weight for 20 mm panel: 1.5 kg/m².
• Surface: polyester non-woven 45 g/m² thermowelded to the core for optimal adhesion.
• Cell sealing: plastic film 50 µm under the non-woven to prevent resin penetration and reduce consumption.
• Honeycomb structure: ≈ 95% void (high mechanical performance with low material use).
• Material: 100% recyclable polypropylene.
• Manufacturing origin: Made in France.
• Recommended use: lamination and spray-up with thermosetting resins (verify resin compatibility before processing).