Composite Materials
PP Honeycomb Core
聚丙烯蜂窝芯
Thermoplastic polypropylene honeycomb structure — the building block of our composite sandwich panels. Lightweight, 100% waterproof, chemically resistant, and fully recyclable. Used as core material in RV floors, truck body panels, packaging, air filtration, building partitions, and sports equipment.
Technical Specifications
| Material | Polypropylene (PP) homopolymer / copolymer |
| Cell Size | 5mm, 8mm, 10mm, 12mm, 15mm, 19mm (custom available) |
| Core Thickness | 5mm – 50mm (standard), up to 100mm on request |
| Density | 40 – 120 kg/m³ (adjustable by cell size and wall thickness) |
| Sheet Dimensions | Up to 1220 × 2440mm (standard), 1500 × 3000mm on request |
| Operating Temp | -40°C to +80°C |
| Water Absorption | < 0.1% (24h immersion) |
| Compressive Strength | 0.5 – 3.0 MPa (varies by density) |
| Color | Natural (translucent), Black, Custom colors |
| Recyclable | 100% thermoplastic, fully recyclable |
| Certifications | SGS tested, RoHS compliant, food-contact grades available |
Applications
RV & Camper Floors
Lightweight floor substrate for recreational vehicle and camper builds. Replaces heavy plywood.
Truck Body Panels
Core material for dry freight and refrigerated truck wall and roof panels.
Packaging & Pallets
Reusable, washable, lightweight logistics packaging and pallet cores.
Air Filtration
Structured core for HVAC and air purifier filter assemblies.
Building Partitions
Interior wall panels, door cores, and acoustic panels for construction.
Sports Equipment
Core material for pickleball paddles (patented PP honeycomb paddle technology).
FAQ
What is PP honeycomb core?
PP honeycomb core is a lightweight structural material made from thermoplastic polypropylene formed into a hexagonal honeycomb pattern. It provides an excellent stiffness-to-weight ratio when sandwiched between face sheets (glass fiber, aluminum, PP sheet, etc.) to create composite sandwich panels. It is 100% waterproof, chemically resistant, recyclable, and significantly lighter than traditional core materials like plywood, MDF, or foam.
How does PP honeycomb core compare to aluminum honeycomb?
PP honeycomb is lighter (density 40-120 kg/m³ vs 50-130 kg/m³ for aluminum honeycomb), significantly cheaper (typically 30-50% lower cost), 100% waterproof and corrosion-proof (aluminum corrodes in marine/chemical environments), and fully recyclable as a single-material thermoplastic. However, aluminum honeycomb offers higher temperature resistance (up to 200°C vs 80°C for PP), higher absolute strength, and better fire performance. Choose PP for cost-sensitive, moisture-exposed, and recyclability-priority applications; aluminum for high-temp and fire-critical applications.
What cell sizes are available?
Standard cell sizes: 5mm, 8mm, 10mm, 12mm, 15mm, and 19mm. Smaller cells (5-8mm) provide higher density and compressive strength, suitable for load-bearing floors and structural panels. Larger cells (15-19mm) are lighter and more cost-effective, suitable for partition walls, packaging, and non-structural applications. Custom cell sizes can be produced for specific engineering requirements.
Related Products
Need PP Honeycomb Core?
Tell us your cell size, thickness, density, and volume. Quote within 24 hours.
Request a Quote