Why Choose Pupanel Honeycomb Sandwich Panels
- Cellular sandwich panels could meet various engineering requirements like building facades, interior decoration, transportation, equipment shells, and industrial projects.
- With multiple international certifications, including ISO 9001, CE, ISO 14001, and FE, they comply with overseas engineering project and procurement standards.
- Our honeycomb sandwich panels carry out a full-process inspection from raw material entry, cellular core processing, composite production, to finished product delivery.
- Pupanel can provide a comprehensive service system, from design and production to installation guidance and after-sales service, with 24-hour response.
Reliable Honeycomb Sandwich Panels for Your Projects
If you are looking for a manufacturer of honeycomb sandwich panels, we could deliver you a long-term, reliable supply with strict quality control and project coordination capabilities.
Types of Honeycomb Sandwich Panels
The honeycomb core itself is non-flammable. Combined with the fire-resistant surface layer and the high-temperature-resistant adhesive system, the entire honeycomb sandwich panel can meet the A-grade non-combustible standard. In a fire environment, it does not contribute to combustion or drip, effectively delaying the spread of the fire.
Designed for clean spaces, the board adopts a seamless jointed tongue-and-groove structure to reduce the risk of dust accumulation in the gaps. Combined with an antibacterial surface layer and a stable honeycomb core material, it effectively prevents bacterial growth and makes daily cleaning and disinfection easier.
Through the synergistic effect of the honeycomb core’s sealed cavities and the acoustic panels, the sound-insulating honeycomb sandwich panel can reduce noise transmission. Compared to traditional solid walls, it delivers you a superior sound insulation at the same thickness and weight while reducing the structural load.
It uses 316 stainless steel honeycomb and FRP panels, which could withstand salt fog, acids, alkalis, and chemical media erosion for a long time. While ensuring the structural strength, it significantly extends your production’s service life, reducing the maintenance and replacement costs in the future.
Feature of Honeycomb Sandwich Panels
The hollow panel core reduces the panel’s quality and density, making it an ideal solution for weight reduction.
Under the same weight condition, the honeycomb panels’ overall strength can reach 5-10 times that of traditional solid panels.
The regular hexagonal honeycomb structure evenly distributes external loads, reducing local stress concentration, which lowers the structural fatigue risk and failure during long-term use.
Its non-flammable aluminum or stainless steel honeycomb cores with fire-resistant panels; these solutions meet fire safety standards for industries such as chemical, electronics, and food.
The honeycomb core’s closed cavity structure could block the transmission of heat and sound. The thermal conductivity is as low as 0.04-0.06W/(m・K) and the sound insulation is ≥ 35dB.
In high salt spray or chemical environments, the aluminum and stainless steel honeycomb structures are resistant to oxidation and acid-base corrosion with a 20-30 year service life.
We adopt a modular panel design, which means on-site assembly only requires bolt connections without any wet work. The construction efficiency is 5-8 times higher than traditional masonry.
It can ensure the panels’ flatness and tolerance by standardized production and size control, which makes the subsequent structural installation and system connection easier for you.
Flexible Customization
You could customize honeycomb sandwich panels according to the project’s needs, such as size specifications, material combinations, and fire resistance ratings.
Whether it’s standard engineering dimensions, special structures, or irregularly shaped panels, they can all be produced per the drawings. Pupanel could deliver you customized solutions, and they meet the different countries and areas’ technical specifications.
Strict Quality Control from Production to Inspection
We are equipped with an Italian PALM fully automatic production line to achieve continuous, efficient, and stable production.
There are over 50 sets of professional testing equipment at our factory. These machines can conduct comprehensive inspections of raw materials, laminated strength, flatness, fire resistance, and structural performance. This could ensure your every honeycomb core panel is consistent and reliable.
Application of Honeycomb Sandwich Panels
With its lightweight, weather resistance, and architectural appearance effect, it is commonly used in building enclosure systems such as curtain walls, partition walls, and ceiling panels, providing you with a durable and easy-to-maintain solution.
FRP sandwich panels with fiberglass honeycomb are widely applied in ship interiors, engine room bulkheads, and functional compartments. Because it has a good performance in strength, impact resistance, and corrosion resistance, while effectively reducing weight.
Honeycomb sandwich panels are also commonly chosen for manufacturing equipment enclosures, protective covers, and structural shielding panels. This is because they ensure rigidity and stability while reducing overall weight and enhancing equipment operational efficiency.
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Despite a significant weight reduction, the honeycomb sandwich panel still offers high strength and rigidity. This helps you reduce structural loads and transportation and installation costs, and is particularly suitable for large-scale projects or weight-sensitive applications.
EPS or PU sandwich panels focus more on insulation and heat insulation performance, while honeycomb sandwich panels emphasize structural strength, flatness, fire resistance, and service life.
If the project requires high load-bearing capacity, structural stability, or fire ratings, honeycomb sandwich panels are an ideal solution.
Most honeycomb cores are non-combustible, and overall fire resistance performance primarily depends on the panel design and adhesive system.
Under a reasonable structure, it can meet various international fire-rating requirements and is suitable for engineering projects with clear fire-resistance requirements.
The honeycomb structure has good load-dispersion capability. Generally, the single-point concentrated load on thickened aluminum honeycomb panels is 300-500 kg. They are commonly applied in flooring systems, partition walls, and equipment enclosures, which require a balance between strength and weight.
What is a Honeycomb Sandwich Panel?
The honeycomb sandwich panel is a high-performance and lightweight composite sheet widely used in construction, industrial equipment, ships, aviation, and so on.
It features a typical design: two high-strength outer skins sandwiching a honeycomb core, bonded together into a monolithic unit via a high-performance adhesive system. The sandwich structure significantly reduces weight while maintaining good strength, rigidity, and flatness.
Composition of Honeycomb Sandwich Panels
Honeycomb Core Material
Aluminum honeycomb: Aluminum honeycomb is formed by stretching aluminum alloy foil. Its honeycomb edge length is commonly from 3 to 10 mm. It shows a lightweight and stable structure that can effectively save weight while keeping rigidity. It is particularly suitable for engineering applications requiring structural performance.
Paper honeycomb: Paper honeycomb is made by compressing moisture-resistant and flame-retardant kraft paper or flame-retardant paper. It offers relatively low cost and excellent thermal and acoustic insulation. It is popular in projects where structural strength is less critical, prioritizing cost-effectiveness and functionality.
Stainless steel honeycomb: This is formed from stainless steel foil, offering high strength and excellent corrosion resistance. It is commonly used in corrosive environments, food aseptic workshops, and other locations requiring highly durable and hygienic standards.
Layer material
Aluminum plate: The aluminum plate is lightweight, easy to process, with a thickness of 0.8–2.0 mm. It is widely used in construction and aerospace fields.
Stainless steel: Its thickness is usually from 0.6 to 1.5 m. Its good corrosion resistance, easy cleaning, and high structural strength make it particularly suitable for clean rooms, food, and industrial buildings.
FRP glass plate: The thickness is usually in a range of 1-3 mm, and it has good acid and alkali resistance and insulation properties, which enable it to be commonly used in chemical corrosion environments and marine engineering.
Adhesive
Honeycomb sandwich panels typically use high-performance structural adhesives, such as epoxy and polyurethane, to securely bond the panels to the honeycomb core.
The bonding strength generally requires less than 0.15 MPa to ensure that the panels do not separate or bulge in high-temperature, low-temperature, or humid environments, meeting your long-term engineering usage requirements.
Surface Treatment of Honeycomb Sandwich Panels
You can choose PVDF coating, anodizing, or spraying treatment, and so on,depending on the application environment. This could improve your panels’ weather resistance, corrosion resistance, and appearance consistency.
Powder coating: After the aluminum plate is pre-treated, it is electrostatically sprayed with powder coating and cured at 180–200℃ to form a film. It offers multiple color options, including matte and high-gloss finishes. At the same time, the coating has strong adhesion and good wear resistance, which is more suitable for indoor environments.
PVDF fluorocarbon coating: It uses a multi-layer fluorocarbon spraying system, which shows excellent weather resistance and chemical resistance. Thanks to its good acid and alkali resistance and pollution resistance, it is typically used for long-term outdoor applications.
Roughing: The panel surface is ground with sandpaper or a sanding machine to achieve a uniform texture. It features a strong metallic finish for a more upscale appearance and offers a fingerprint-resistant finish.
Anodizing: The aluminum plate is placed in an electrolyte and electrically charged to form a dense oxide film, typically 5–20 μm thick. It has a strong metallic texture and a high surface stability, so it is a better choice for projects with high requirements for appearance consistency and durability.
How to Choose The Honeycomb Sandwich Panels
Compatibility
It is important to match the type of honeycomb core material (such as aluminum, paper, stainless steel, and so on), the thickness of the panel, and the overall compressive strength. This could ensure your structural performance.
If the project involves distributed loads or concentrated loads, you should clear the bearing requirements during the design stage to avoid structural risks in the later stage.
Size
The honeycomb sandwich panel’s thickness, honeycomb aperture, and wall thickness will directly affect its strength and stiffness. Note that the smaller the aperture and the thicker the honeycomb wall, the more stable the overall structure, making it suitable for applications with higher rigidity requirements.
Fire Protection Requirements
If the project has clear regulations on fire protection grades, the panel material, adhesive system, and overall fire protection grade should be confirmed simultaneously during the selection process.
Surface Effect
If it is in an outdoor environment, prioritize fluorocarbon spray (PVDF) or anodized coatings with strong weather resistance. If it is corrosion environment scenarios, please select stainless steel with passivation treatment, aluminum alloy with fluorocarbon spray, and avoid choosing ordinary powder coating.
