PP Honeycomb Core

PP Honeycomb Core combines polypropylene into hexagonal cellular structures that deliver consistent shear properties in all directions. The lightweight core includes non-woven polyester scrim for enhanced surface bonding and optional barrier films to control resin absorption during manufacturing.

The material provides high strength-to-weight ratios with resistance to moisture, corrosion, chemicals, and temperature extremes from -40°F to 230°F. Available thicknesses range from 0.25 to 24 inches, with densities from 2.5 to 12.0 pounds per cubic foot (pcf). Standard sheet sizes reach 48″ x 96″, with some manufacturers offering panels up to 1,400mm wide and 12,000mm long.

Mechanical properties include 275 psi compressive strength, 85 psi shear strength, and low thermal conductivity (k-value 0.03). The core demonstrates minimal water absorption under 0.10% over 24 hours and functions effectively for sound dampening and energy absorption.

Applications span marine decks and bulkheads, wind power nacelles and blades, rail floors and partitions, plus industrial tooling and covers. Compatible with thermoforming, vacuum infusion, Computer Numerical Control (CNC) machining, and various lamination techniques, the fully recyclable core integrates into sandwich panels through thermal or adhesive bonding methods.

PP Honeycomb Core Supplier for High-Performance Applications

RaxPanel is a global manufacturer of honeycomb core, honeycomb panels, and composite structures with over 20 years of experience. Our PP Honeycomb Core is specified wherever high strength-to-weight ratio, energy absorption, or directional qualities are desired. Lightweight yet strong, this polypropylene core features an open cell configuration with non-woven polyester scrim for excellent surface bonding and impact resistance. It is corrosion-resistant, waterproof, and fully recyclable, making it an ideal solution for industries such as:

Marine
Transportation
Advertising
Construction

As a direct manufacturer based in Hebei, China, we employ lean manufacturing principles throughout our in-house R&D, design, and production processes. This allows us to reduce lead times while ensuring optimum quality and on-time delivery. With a daily output of 1500+ m² and a focus on custom composite panel solutions, we serve clients in 30+ countries, offering reliable, high-performance materials tailored to diverse applications. Need something different? We’ve got you covered.

Data Sheet
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Parameter Category	Parameter	Value
Physical Properties	Material	Polypropylene
	Cell Configuration	Isotropic
	Cell Size	8 mm
	Density Range	2.5 – 12.0 pcf
	Standard Density	4.0 – 5.0 pcf
	Thickness Range	0.25″ – 24.0″
	Standard Thicknesses	3.5 mm, 6 mm, 10 mm, 20 mm, 28 mm
	Standard Sheet Size	48″ x 96″
	Max Sheet Width	1,400 mm
	Max Sheet Length	12,000 mm
	Surface Treatment	Non-woven polyester scrim/veil
	Color	White
	Recyclable	Yes
Technical Properties	Compressive Strength	275 psi
	Compressive Modulus	6,628 psi
	Tensile Strength	130 psi
	Shear Strength	85 psi
	Shear Modulus	2,205 psi
	Thermal Conductivity (k-value)	0.03
	Water Absorption (24 hrs)	< 0.10%
	Service Temperature	-40°F to 230°F
	Flammability	Self-extinguishing, non-toxic smoke
	Peel Strength	Excellent
	Fatigue Resistance	Excellent
	Impact Resistance	Excellent
	Sound Attenuation	> 22 dB

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Frequently Asked Questions（FAQS）

What are the key properties and benefits of PP Honeycomb Core?

PP Honeycomb Core features a high strength-to-weight ratio, excellent corrosion, fungi, rot, chemical, and moisture resistance, sound and vibration dampening, energy absorption, thermoformability, and is recyclable. It is an excellent lightweight alternative to traditional core materials like plywood, balsa, and foam.

What industries and applications commonly use PP Honeycomb Core?

It is widely used in marine (stringers, decks, transoms, bulkheads), automotive, truck, trailer, architectural, environmental, recreational, industrial (tanks, covers, ductwork, tooling, containers), wind power (nacelles, rotor blades), and rail (floors, doors, side skirts, roof panels, partition walls) applications.

What standard sizes and thicknesses are available for PP Honeycomb Core?

Standard thicknesses range from 0.25″ to 24.0″, with densities from 2.5 pcf to 12.0 pcf. Sheet sizes are commonly available up to 48” x 96”, with custom sizes and thicknesses (e.g., 3mm to 100mm) available on special order.

Is PP Honeycomb Core resistant to moisture and chemicals?

Yes, PP Honeycomb Core is highly resistant to moisture, chemicals, corrosion, fungi, and rot, making it suitable for demanding environments including marine and industrial applications.

Can PP Honeycomb Core be customized or machined?

Yes, it can be customized in cell size, density, thickness, and sheet dimensions. Services like CNC cutting, scoring, and sandwich panel construction are available. Custom finishes, including glossy, matte, embossed, or painted surfaces, can also be provided.

How does PP Honeycomb Core compare to traditional materials like wood or metal?

PP Honeycomb Core offers superior strength-to-weight ratio, moisture and chemical resistance, and is fully recyclable. It is lighter and more durable than wood, and more corrosion-resistant and cost-effective than metal honeycomb panels.

What are the thermal and mechanical properties of PP Honeycomb Core?

Typical properties include compressive strength around 275 psi, shear strength of 85 psi, thermal conductivity of k=0.03, and dimensional stability from -40°F to 230°F. It also offers excellent impact resistance, fatigue resistance, and sound attenuation greater than 22dB.

How do you ensure consistent quality and reliable delivery for large-scale OEM partnerships?

With over 20 years of experience, we maintain high-quality standards in manufacturing PP honeycomb core, featuring excellent strength-to-weight ratio and resistance to moisture, chemicals, and fungi. Our daily production capacity of over 1500 m² ensures reliable supply for large orders, and we prioritize on-time delivery to support your manufacturing processes. Customizable options are available for thicknesses, densities, and cell sizes, with rigorous quality control throughout.

What level of customization can you provide for specific project requirements, such as size, density, or finish?

We offer highly flexible customization, including a wide range of thicknesses (from 0.25” to 24”), densities (from 2.5 pcf to 12.0 pcf), and cell sizes. Special orders for unique dimensions or properties are accommodated, and we provide finishing services like cutting and sandwich panel construction. Standard sheet sizes are available, and we can tailor solutions to meet specific application needs in industries such as marine, automotive, and construction.

What technical documentation and support do you offer for engineers and architects specifying materials?

We provide comprehensive technical data sheets detailing properties such as compressive strength (up to 275 psi), shear strength (85 psi), and thermal stability (from -40°F to 230°F). Our core material is tested for impact resistance, sound attenuation greater than 22db, and recyclability. Performance test reports and lot traceability are available on request to ensure compliance and quality assurance for your projects.