Polypropylene Honeycomb Core RECY
Grade
also Nida-Core
RECY = recycled-PP content core
Lowest cost and lowest embodied carbon; accept slightly lower and more scattered mechanical values.
Values for the RECY condition
Other Polypropylene Honeycomb Core grades and fills
Polypropylene Honeycomb Core is listed in 6 conditions; see the grade overview at Polypropylene Honeycomb Core.
Compare all 6 grades and fillsHide
| Grade · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness |
|---|---|---|---|---|---|
60 kg/m³ | Lowest-cost, lightest grade for lightly loaded display panels, interior linings and packaging sandwich boards. | — | 0.35 | — | — |
RECYThis page Recycled-PP content core | Lowest cost and lowest embodied carbon; accept slightly lower and more scattered mechanical values. | — | 0.5 | — | — |
Flame-retardant grade | Specify for rail, bus and building interior panels needing EN 45545 / UL 94 V-0 class core behaviour. | — | 0.55 | — | — |
PP-HC-80Default 80 kg/m³ | The workhorse grade: best strength-to-cost balance for truck bodies, floors, boat and RV panels. | — | 0.6 | — | — |
110 kg/m³ | Pick when flatwise crush and skin-bonding pressure during pressing are high (container/trailer floors, pallets). | — | 0.9 | — | — |
150 kg/m³ | Highest crush resistance PP core for forklift-trafficked floors and local insert/hardpoint areas. | — | 1 | — | — |
What is Polypropylene Honeycomb Core RECY?
Polypropylene Honeycomb Core RECY is Polypropylene Honeycomb Core in the RECY grade — lowest cost and lowest embodied carbon; accept slightly lower and more scattered mechanical values. Polypropylene Honeycomb Core RECY has a tensile strength of 0.5 MPa (0.0725 ksi), weaker than 97% of composite grades. The elastic modulus is 0.04 GPa (0.0058 Msi). Polypropylene Honeycomb Core RECY has a density of 0.08 g/cm³ (0.0029 lb/in³), lighter than 90% of composite grades. Its glass-transition temperature is -10°C (14 °F). PP-HC-80 is the default condition FabDigit quotes; RECY is available on request or by drawing note.
Advantages
- Good corrosion resistance — 93/100, better than 100% of composite grades
- Low embodied carbon — 0.8 kg CO₂/kg, better than 98% of composite grades
- Low moisture uptake — 0.05%, better than 94% of composite grades
- Lightweight — 0.08 g/cm³ (0.0029 lb/in³), better than 90% of composite grades
- Easy to machine — 80/100, better than 85% of composite grades
Limitations
- High mold shrinkage — 1.6%, worse than 125% of composite grades
- Low stiffness — 0.04 GPa (0.0058 Msi), worse than 96% of composite grades
- Limited service temperature — 75°C (167 °F), worse than 96% of composite grades
- Degrades in UV without stabilisers — 20/100, worse than 94% of composite grades
- Poor heat conductor — 0.05 W/m·K (0.0289 BTU/hr·ft·°F), worse than 87% of composite grades
Polypropylene Honeycomb Core RECY properties
Typical room-temperature values for Polypropylene Honeycomb Core RECY; 18 are specific to this condition. Other listed values are Polypropylene Honeycomb Core reference data and may not represent this condition. Bars are the position among composite grades.
Physical5
Polypropylene Honeycomb Core RECY has a density of 0.08 g/cm³ (0.0029 lb/in³), lighter than 90% of composite grades. Its glass-transition temperature is -10°C (14 °F).
Mechanical6
Polypropylene Honeycomb Core RECY has a tensile strength of 0.5 MPa (0.0725 ksi), weaker than 97% of composite grades. The elastic modulus is 0.04 GPa (0.0058 Msi).
Thermal11
Polypropylene Honeycomb Core RECY is rated for continuous service to 75°C (167 °F). It conducts heat at 0.05 W/m·K (0.0289 BTU/hr·ft·°F), worse than 87% of composite grades. Thermal expansion is 100 µm/m·K (55.6 µin/in·°F).
Electrical3
Polypropylene Honeycomb Core RECY has an electrical resistivity of 1×10¹⁴ Ω·m.
Chemical & Environmental3
Corrosion resistance is excellent (93/100), better than 100% of composite grades. UV resistance is poor.
Sustainability4
Producing a kilogram of Polypropylene Honeycomb Core RECY takes about 25 MJ of energy and emits 0.8 kg of CO₂ — less than 97% of composite grades. Typical recycled content is 80%.
Manufacturability4
Polypropylene Honeycomb Core RECY's machinability is very good (80/100, better than 85% of composite grades).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with Polypropylene Honeycomb Core RECY
Is Polypropylene Honeycomb Core easy to machine?
Cuts easily with band saw, hot knife, CNC router or water jet; keep tools sharp and feed fast to avoid melt smearing, and support the core to prevent cell crushing.
Can Polypropylene Honeycomb Core be welded?
Cell walls are thermally weldable (hot-plate, ultrasonic, hot-air) to PP skins; no solvent bonding — PP cannot be solvent-cemented.
Can Polypropylene Honeycomb Core be formed, bent or molded?
Core is heat-formable/crushable to curves and can be co-pressed with PP-GF or thermoplastic skins at 170–200 °C; avoid dwell above 150 °C or the cell walls collapse.
What surface finishes work on Polypropylene Honeycomb Core?
Non-polar surface must be corona/flame/plasma treated or supplied with nonwoven scrim before PU, epoxy or PSA bonding; no painting or plating of the core itself.
Polypropylene Honeycomb Core chemical composition (wt %)
Limits by weight percent from the governing specification, written the way the spec states them — a single maximum for impurities, a range for alloying elements, and the base element as balance. Nominal is the typical mid-range value.
| Element | Spec limit (wt %) | Nominal |
|---|---|---|
| carbon black / UV stabilizerUV-stabilized (black) variants only | 0 – 2.5 | 0.5 |
| flame retardant packageFR variants only | 0 – 20 | 0 |
| PET/glass nonwoven scrimscrim-faced variants; typ. 20–100 g/m² per face | 0 – 15 | 0 |
| polypropylene (homopolymer/copolymer)extrusion-grade PP, cell-wall material | ≥ 95 (balance) | — |
Polypropylene Honeycomb Core RECY — frequently asked
What is Polypropylene Honeycomb Core RECY used for?
Polypropylene Honeycomb Core RECY is typically used for truck/trailer floor panels, furniture and partition panels, signage panels and automotive interior panels. In short: lowest-cost moisture-proof core; recyclable thermoplastic honeycomb; 80 °C service ceiling.
What is the tensile strength of Polypropylene Honeycomb Core RECY?
Polypropylene Honeycomb Core RECY has a typical tensile strength of 0.5 MPa (0.0725 ksi) — weaker than 97% of composite grades. Strength varies by condition: see the 6 listed tempers.
Is Polypropylene Honeycomb Core RECY easy to machine?
Yes — machinability is rated very good (80/100, better than 85% of composite grades). Cuts easily with band saw, hot knife, CNC router or water jet; keep tools sharp and feed fast to avoid melt smearing, and support the core to prevent cell crushing.
Can Polypropylene Honeycomb Core RECY be welded?
Cell walls are thermally weldable (hot-plate, ultrasonic, hot-air) to PP skins; no solvent bonding — PP cannot be solvent-cemented.
What surface finishes work on Polypropylene Honeycomb Core RECY?
Non-polar surface must be corona/flame/plasma treated or supplied with nonwoven scrim before PU, epoxy or PSA bonding; no painting or plating of the core itself.
Can Polypropylene Honeycomb Core RECY be formed, bent or molded?
Core is heat-formable/crushable to curves and can be co-pressed with PP-GF or thermoplastic skins at 170–200 °C; avoid dwell above 150 °C or the cell walls collapse.
What is the maximum service temperature of Polypropylene Honeycomb Core RECY?
Polypropylene Honeycomb Core RECY is rated for continuous use to about 75°C (167 °F), and briefly to 110°C. Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
Sources
- PP honeycomb core (H8PP series) technical data — Nida-Core / 3A Composites (2022)
- ThermHex thermoplastic honeycomb core datasheets — EconCore / ThermHex Waben (2023)
- Tubus round-cell PP honeycomb core data — Tubus Bauer (2021)
- ASTM C365 – Flatwise Compressive Properties of Sandwich Cores — ASTM (2022)
- ASTM C273 – Shear Properties of Sandwich Core Materials — ASTM (2020)
- Engineered Materials Handbook Vol. 2 – Engineering Plastics — ASM International (1988)
- CAMPUS polypropylene resin datasheets — CAMPUS/CWFG (2023)
Property data is compiled from published supplier and standards handbooks and normalised for comparison. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.