Jiangsu Jianglin Yihai New Material Science & Technology Co., Ltd. is one of the leading manufacturers and suppliers of extruded polypropylene hollow core boards in China. With abundant experience, we warmly welcome you to wholesale premium extruded polypropylene hollow core boards for sale here from our factory. All customized products are with high quality and competitive price. For quotation, contact us now.
Extruded Polypropylene Hollow Core Boards
Extruded polypropylene hollow core boards are lightweight, rigid panels extruded from high-grade polypropylene resin. Featuring two flat outer surfaces connected by vertical internal ribs, this hollow geometry minimizes material weight while providing high panel stiffness and impact resistance.
Engineered for long service life and high reusability, these boards are ideal for reusable packaging, logistics layer pads, temporary surface protection, screen and digital printing, outdoor signage, and precision die-cut components.
Technical Specifications & GSM Reference Guide
Selecting the optimal specification requires evaluating sheet dimensions, required rigidity, board weight, and conversion methods together.
Technical Parameters
|
Parameter |
Technical Specification / Standard |
|
Material |
100% Virgin Polypropylene (PP) / Recycled blends upon request |
|
Structure |
Twin-wall hollow ribbed / Corrugated structure |
|
Thickness Range |
2 mm to 7 mm |
|
Maximum Width |
2600 mm |
|
Sheet Length |
Customized (Flat sheets or rolls) |
|
Surface Treatment |
In-line Corona treatment (38–44 dynes/cm) for ink adhesion |
|
Functional Grades |
UV-resistant, Flame-retardant (UL94 V-0), Anti-static (10^9 to 10^11 ohms/sq), ESD (10^6 to 10^9 ohms/sq) |
|
International Compliance |
RoHS (EU 2015/863), REACH (EC 1907/2006), UL94 Flame Rating |
|
Conversion Methods |
Die-cutting, Sonic welding, Creasing, Printing, Edge-sealing, Riveting |
Thickness & Recommended GSM Reference
|
Thickness |
Recommended GSM Range |
Typical Applications |
|
2 mm |
350 - 450 GSM |
Lightweight inserts, simple signs, protective dividers |
|
3 mm |
450 - 600 GSM |
Signage, layer pads, light-duty packaging |
|
4 mm |
650 - 900 GSM |
Industry standard for reusable boxes, totes, heavy layer pads |
|
5 mm |
900 - 1200 GSM |
Heavy-duty packaging, industrial surface protection |
|
6 mm - 7 mm |
1200 - 1800 GSM |
Structural crates, heavy-load dividers, exterior barriers |
Key Advantages
100% Recyclable & Eco-Friendly
Unlike single-use paper corrugated board that degrades when wet or ends up in landfills, PP hollow boards are 100% closed-loop recyclable. They can be re-granulated into new PP products at the end of their lifecycle, helping enterprises meet zero-waste targets.
Moisture, Chemical & Weather Resistance
Polypropylene is non-porous and hydrophobic. It will not absorb water, rot, swell, or mildew when exposed to rain, condensation, grease, or common chemicals-making it superior to paperboard in cold-chain and high-humidity environments.
High Strength-to-Weight Ratio
The internal rib structure minimizes raw material consumption while delivering impressive structural strength and impact resistance. This significantly reduces transport costs and ergonomic strain during handling.
Cost-Effective for Closed-Loop Supply Chains
High-density PP sheets withstand hundreds of supply chain trips without structural breakdown. Their long service life drastically lowers the cost-per-use in returnable transport packaging (RTP).
Functional Material Grades
Standard Grade: Ideal for indoor packaging, temporary floor protection, and short-term signage.
UV-Stabilized Grade: Formulated with light stabilizers to prevent yellowing, embrittlement, and strength loss during extended outdoor exposure.
Flame-Retardant Grade: Complies with UL94 V-0 standards, self-extinguishing within seconds after the flame source is removed. Essential for electronics packaging and public indoor displays.
Anti-Static & ESD Grades: Provides surface resistivity from 10^6 to 10^11 ohms/sq, protecting sensitive electronic components from electrostatic discharge during assembly and transit.
Processing & Fabrication Capabilities
Precision Die-Cutting: High-speed flatbed die-cutters produce complex geometries, custom packaging inserts, dividers, and specialized shapes.
Creasing & Folding: Engineered scorelines aligned or perpendicular to the rib direction ensure clean folding for boxes, sleeves, and totes.
Edge Sealing: Sealed edges prevent water, dust, and debris from entering the internal flutes, ideal for cleanroom, medical, and food packaging.
Corona Printing Treatment: Surface treatment ensures long-lasting ink adhesion for UV flatbed and screen printing.
Sonic Welding & Riveting: Strong structural joining for heavy-duty plastic boxes, containers, and partition sleeves.
Target Applications
Reusable Industrial Packaging: Foldable totes, layer pads, bottle dividers, automotive component packaging, and returnable containers.
Logistics & Warehousing: Heavy-duty pallet layer sheets, rack separators, corner guards, and aisle protection panels.
Signage & Display: Yard signs, real estate boards, election posters, POP retail displays, and exhibition graphics.
Construction & Building: Floor protection sheets during fit-outs, waterproof membrane protection, and formwork lining.
Agriculture: UV-protected plant guards, fruit harvesting crates, greenhouse dividers, and packaging boxes.
Manufacturing & Quality Control
High-Speed Extrusion Capacity: Multi-line extrusion setups ensure short lead times for high-volume production.
In-Line Quality Inspection: Automated sensors monitor thickness, sheet width, and GSM uniformity across the entire sheet during extrusion.
Laboratory Testing: Comprehensive evaluation including drop impact, edge crush, surface resistivity, and ink adhesion testing.
Traceability: Every pallet is labeled with batch numbers linked to raw material logs and QC inspection records for consistent repeat orders.
Export Packaging: Reinforced palletizing with protective wrap, corner protectors, and heavy-duty strapping to withstand long-distance maritime transport.
FAQ
Q: How do I choose the right Thickness and GSM for my application?
A: Thickness determines the overall physical profile and crease spacing, while GSM (Grams per Square Meter) defines structural density and load capacity. For example, a 4 mm board at 800 GSM is substantially stronger than a 4 mm board at 650 GSM. Both parameters should be specified together.
Q: Are PP hollow core boards compliant with international environmental regulations?
A: Yes. Standard virgin PP boards fully comply with EU REACH and RoHS standards. Official third-party test reports (such as SGS or TUV) are available upon request.
Q: What is the typical Minimum Order Quantity (MOQ) and lead time?
A: For standard colors and sizes, the lead time is typically 7 to 10 days. For custom colors, specialized functional grades, or non-standard GSM, the MOQ usually starts at 1 to 2 metric tons per specification.
Q: Can you fabricate custom boxes or inserts directly from CAD drawings?
A: Yes. You can provide CAD/DXF files, PDF drawings, or physical samples. Our engineering team will optimize rib orientation, crease patterns, and cutting layouts for cost-effective production.
Q: How long do UV-stabilized PP hollow boards last outdoors?
A: Standard PP boards may show signs of degradation after 3 to 6 months of intense sunlight. With the addition of UV-stabilizing additives, service life can be extended to 1 to 3+ years depending on local climate and solar intensity.
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