Extruded PP Hollow Core Boards

Extruded PP Hollow Core Boards

Extruded PP hollow core boards are continuous-extruded, twin-wall polypropylene panels. Designed with structured internal ribs between two flat surfaces, these boards significantly reduce overall material weight while providing superior panel stiffness, impact resistance, and long-term durability.
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Description

Jiangsu Jianglin Yihai New Material Science & Technology Co., Ltd. is one of the leading manufacturers and suppliers of extruded pp hollow core boards in China. With abundant experience, we warmly welcome you to wholesale premium extruded pp 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 PP Hollow Core Boards

 

 

Extruded PP hollow core boards are continuous-extruded, twin-wall polypropylene panels. Designed with structured internal ribs between two flat surfaces, these boards significantly reduce overall material weight while providing superior panel stiffness, impact resistance, and long-term durability.
Available as flat protective sheets or precision-converted industrial components, our PP hollow boards can be customized through die-cutting, creasing, punching, sonic welding, screen/digital printing, and edge sealing.

 

Material & Twin-Wall Core Engineering

 

 

Our boards are manufactured from high-purity polypropylene thermoplastics engineered for high-cycle reusable packaging and rugged industrial components.
Zero Water Absorption: Complete resistance to moisture, humidity, and liquid exposure.
High Strength-to-Weight Ratio: Substantially lighter than solid plastic or wooden alternatives.
Chemical Inertness: Excellent resistance to common oils, grease, solvents, and cleaning agents.
Easy Fabrication: Highly adaptable to die-cutting, folding, sonic welding, and custom assembly.

 

Material Performance Comparison

 

 

Performance Property

PP Hollow Board

Corrugated Cardboard

Solid Plastic Sheet (PVC/ABS)

Moisture / Water Resistance

100% Waterproof

Absorbs moisture; degrades

Waterproof

Reusable Life Cycles

High (50–100+ cycles)

Low (1–3 cycles)

Very High

Weight Efficiency

Extremely Lightweight

Lightweight

Heavy

Dust & Fiber Free

Yes (Cleanroom compatible)

No (Generates paper dust)

Yes

Chemical & Oil Resistance

Excellent

Poor

Good to Excellent

Recyclability

100% Recyclable (PP)

Recyclable (if clean)

Recyclable

Total Cycle Cost

Lowest (Multi-use)

High (Single-use replacement)

High initial investment

 

Specification Selection Matrix

 

 

Procurement Objective

Critical Parameters to Review

Recommended Target Range

Weight Reduction in Logistics

Basis Weight (GSM), Rib Geometry

2mm–3mm / 350g–500g

Heavy Stacking / Layer Pads

Thickness, GSM, Internal Wall Thickness

4mm–6mm / 900g–1500g

Repeated Folding / Tote Boxes

Rib Orientation, Crease Line Depth, Resin Grade

Impact Polymer Grade / 4mm–5mm

Outdoor Signage & Displays

UV Stabilizer Content, Corona Treatment

3mm–5mm / Corona > 46 Dynes

Automotive Part Separators

Surface Softness, Anti-Static (ESD) Class

Surface Laminate / Surface Resistivity 10^6 - 10^9 Ohm

 

Standard Technical Specifications

 

 

Parameter

Factory Capability & Standard Ranges

Material Base

100% Recyclable Polypropylene (PP) / Flame Retardant / Conductive / Anti-Static

Thickness Range

2.0 mm to 12.0 mm (Customizable)

Basis Weight (GSM)

300 g/m² to 3000 g/m²

Max Extrusion Width

Up to 2600 mm (102 inches)

Length

Custom cut-to-size / Continuous roll options available

Color Options

Standard White, Blue, Black, Grey, Natural, or Custom RAL Matching

Surface Corona Treatment

42 – 48 Dynes/cm for long-term ink adhesion

Dimensional Tolerances

Thickness: +/- 0.2mm | Width: +/- 2mm | Length: +/- 2mm

 

Printing & Custom Fabrication Options

 

 

Our facility provides end-to-end processing to convert flat sheets into ready-to-use industrial components:
Corona Surface Treatment: High-grade online corona treatment ensures durable ink anchoring for UV digital, flexographic, and screen printing.
Precision CNC & Die-Cutting: High-speed automatic die-cutting and CNC routing for intricate shapes, radius corners, and mounting holes.
Custom Creasing & Edge Sealing: Precision creasing across or along ribs for smooth, split-free folding. Edge-sealed options available to prevent liquid or dirt intrusion into hollow channels.
Ultrasonic Welding & Riveting: Strong joint fabrication for heavy-duty collapsible containers, sleeves, and dividers.

 

Applications & Field Use Cases

 

 

Application Field

Typical Uses

Key Material Benefits

Automotive Logistics

Part separators, layer pads, protective inserts, returnable packaging panels

High impact resistance, oil resistance, surface protection for delicate parts

Industrial Packaging

Collapsible sleeve packs, corrugated plastic boxes, bin dividers, layer pads

Repeated usability, high stacking strength, moisture resistance

Agriculture & Produce

Fresh produce picking boxes, tree guards, cold-chain containers

Wash-down compatible, zero water degradation, lightweight

Signage & Displays

Temporary site signs, directional boards, retail point-of-sale displays

Weather resistant, UV stabilized, high ink adhesion

 

Manufacturing Capabilities & Quality Assurance

 

 

Category

Capability / Protocol

Extrusion Lines

8 high-speed continuous extrusion lines with automatic thickness gauges

Monthly Capacity

1,200 Metric Tons of finished PP hollow sheets

Processing Machinery

Automated flatbed die-cutters, high-speed CNC routers, automatic edge-sealers

Quality Inspections

Real-time thickness tracking, online optical defect scanners, basis weight monitoring

Laboratory Testing

Flat Compression Test (FCT), Drop & Impact Testing, Cross-Hatch Print Adhesion (ASTM D3359)

 

Packaging & Export Specifications

 

 

Packaging Aspect

Specification Detail

Protective Wrapping

Waterproof PE stretch film wrapped with protective cardboard corner guards

Palletization

Solid wooden pallets (ISPM-15 fumigated) or heavy-duty recyclable plastic pallets

Container Loading

Optimized stacking plans engineered to maximize volume (20GP / 40HQ) and prevent warping

 

FAQ

 

 

Q: What is an Extruded PP Hollow Core Board?

A: An Extruded PP Hollow Core Board is a lightweight, twin-wall polypropylene panel produced via continuous extrusion. Internal structural ribs form hollow flutes, offering a high strength-to-weight ratio ideal for packaging, protective sheets, signage, and industrial fabrication.

Q: How do I select the right GSM (Basis Weight) for my project?

A: The required basis weight depends on the load-bearing requirements of your application. For lightweight protective dividers, 350g–500g is common. For heavy-duty industrial layer pads or stacking totes, 900g–1500g+ is recommended.

Q: Can PP Hollow Boards be recycled at the end of their lifecycle?

A: Yes, PP hollow boards are made from 100% recyclable polypropylene plastic. They can be melted down and re-processed into secondary industrial plastic products, supporting circular economy initiatives.

Q: How long does surface corona treatment last for printing?

A: Our high-energy corona treatment maintains print-ready dyne levels (>42 Dynes/cm) for up to 6 months under proper indoor storage conditions (cool, dry, away from direct sunlight).

Q: What information is needed for an accurate technical quote?

A: Please specify Panel Dimensions (Width x Length), Thickness, Basis Weight (GSM) or Application Load, Color, Processing Requirements (Cutting/Printing/Sealing), Quantity, and Delivery Port.

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