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Cleanroom sandwich panel

Overview:

Sandwich panels are essential in cleanroom construction for creating and maintaining contamination-controlled environments. Their seamless surfaces, tight joints, and smooth finishes prevent particle accumulation and allow easy disinfection, while the insulated core helps regulate temperature and humidity. These panels are widely used in pharmaceuticals, electronics, food processing, healthcare, and other industries requiring strict environmental control.


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Introduction detail:

Clean room sandwich panels are main products in clean room engineering, which are flame retardant, soundproof and environmentally friendly. The Clean room panel is made up of two layers of metal panels and a functional material from the middle. It has the characteristics of easy installation, light weight and environmental protection. Moreover, the functional materials used for filling can be chosen according to different environments and production requirements. Currently, the core functional materials we can provide are: PU, PIR, Rock Wool, Aluminum Honeycomb, Paper Honeycomb, Magnesium and etc.


Classification:

 

Rockwool sandwich panel

Rock Wool sandwich panel are usually used for wall or ceilings that have certain requirements for fire resistance. In addition, it has very good thermal insulation properties. Most customers like the rock wool sandwich panels. Rockwool sandwich panels are commonly used in clean room engineering in electronics and pharmaceutical plants. Rock wool is a kind of inorganic fiber board which is made of basalt as the main raw material and melted at high temperature. Rock wool board is a new type of heat preservation, flame insulation and sound absorption material.
The artificial inorganic fiber processed by high temperature melting of rock wool board has the characteristics of light weight, small thermal conductivity, heat absorption and non-combustibility.


The detail of Rockwool sandwich panel:

HPL sandwich panel

HPL panel (High-pressure laminate) 4 mm thick is a solid compound consisting of more than 40 layers of paper impregnated with melamine and phenolic resins. The sheet of HPL, measuring 1300x3050 mm, has a transparent finishing layer on both external sides that protects the decorative layer below. The central layer, dark brown, is composed of a series of Kraft papers impregnated with phenolic resins, pressed to 9 MPa at 150 °c. It has thermal insulation, fire resistance, easy to installation, nice smoothness and other advantages.


The detail of HPL sandwich panel:




PU sandwich panel

PU sandwich panel usually named polyurethane sandwich panel 、PU color steel panel or PU composite panel , it has three layers that is the double color steel sheet and the PU core, also have good insulation feature and smoothness.

Polyurethane material is a polymer material. Polyurethane is an emerging organic polymer material and is known as the “fifth largest plastic”. It is widely used in many fields of the national economy due to its excellent performance. Product applications include light industry, chemical, electronics, textile, medical, construction, building materials, automotive, defense, aerospace, aviation and so on.


The detail of PU sandwich panel:

 


PIR sandwich panel

PIR core introduction: Polyisocyanurate foam refers to a foamed plastic containing an isocyanurate ring in its molecular structure. In addition to the excellent thermal insulation properties of polyurethane rigid foam and the advantage of good strength at low density, it is common with ordinary Compared with polyurethane rigid foam, its biggest feature is its good flame retardant performance and temperature resistance. Especially its better flame retardant performance has attracted wide attention. Therefore, it has been obtained at home and abroad in recent years. Rapid development.


The detail of PIR sandwich panel:


Magnesium sandwich panel

Magnesium core introduction: The glass magnesium board has high temperature resistance, flame retardant, sound absorption, shockproof, insect proof, water-proof and moisture proof, light antiseptic, non-toxic, tasteless and non-polluting, high strength, bending resistance, toughness, nailing, sawing, sticking and convenient decoration. It can also be combined with a variety of insulation materials to form composite insulation panels.
Product use: can be used as wallboard, ceiling board, fireproof board, waterproof board, can be combined with a variety of insulation materials to make composite insulation board.


The detail of Magnesium sandwich panel:



Honeycomb sandwich panel

Honeycomb core introduction: Aluminum hexagonal honeycomb, low density, 1/5 of the same thickness of the same board, 1/6 of the glass, 1/7 of the aluminum, greatly reducing the construction load and cost, because the middle interlayer contains a lot of air, Sound insulation (air insulation up to 30dB), heat insulation (thermal resistance up to 0.02 (m2 · K / W)), no flammable substances, fire rating up to A1, waterproof, moisture-proof, no harmful gas release, aluminum honeycomb panel surface It has extremely high flatness and good seismic performance, only one-eighth of the specific gravity of the glass curtain wall; the 22mm thick standard can achieve a load of 700 kilograms or more at a simple support of 1 meter and a deflection of 10mm. Aluminum honeycomb panels have been widely used in clean room partitions and ceilings due to their advantages of light weight, high strength and high rigidity.


The detail of Honeycomb sandwich panel:



Stainless steel panel&Aluminium panel:




Sandwich Panels FAQ


Sandwich panels are engineered building systems that combine structural metal facings with insulated cores, providing strength, efficiency, and environmental control. This FAQ addresses key aspects of their application, performance, and customization to help you select the right solution for your project.




Q1: What exactly is a sandwich panel, and how is it constructed?

Q2: As a clean room panel supplier, what industries are your panels most suited for?

Q3: What are the main advantages of your sandwich panels over traditional construction?

Q4: What types of core materials do you offer for your sandwich panels?

Q5: What fire ratings and international certifications do your panels hold?

Q6: How do you ensure the dimensional accuracy and flatness critical for cleanroom installations?

Q7: How is color consistency managed across different production batches?

Q8: Do you manufacture the panels in-house, and what quality controls are in place?

Q9: Can you provide examples of past projects or case studies?

Q10: How are the panels packaged to prevent damage during international shipping?

Q11: What are the correct handling and on-site storage procedures?

Q12: What happens if the panels are damaged during transit?

Q13: What after-sales and technical support do you offer?



Q1: What exactly is a sandwich panel, and how is it constructed?


A sandwich panel is a high-performance composite building material engineered as a "sandwich" structure. It consists of two durable metal facings (typically pre-finished galvanized steel or aluminum) permanently bonded to a lightweight insulating core material. 


This design seamlessly combines the structural strength and weather resistance of the metal with the thermal insulation, acoustic, and fire-resistant properties of the core, making it an ideal, efficient solution for building envelopes, especially for demanding environments like those requiring clean room wall panels and partitions.



Q2: As a clean room panel supplier, what industries are your panels most suited for?


As a dedicated clean room panel supplier, our panels are engineered for precision-controlled environments. Their primary applications are in industries where hygiene, temperature stability, and contamination control are critical. This includes the pharmaceutical and biotech sectors for GMP facilities, the electronics and semiconductor industry for static-sensitive production areas, the food & beverage industry for hygienic processing zones, and healthcare for operating rooms and labs. 


They are the fundamental building block for creating reliable clean room walls, durable clean room partitions,and integrated cleanroom ceiling systems.





Q3: What are the main advantages of your sandwich panels over traditional construction?


Our panels offer a superior, all-in-one solution that accelerates project timelines and enhances performance. Key advantages include exceptional thermal efficiency leading to significant energy savings, rapid installation due to large, prefabricated sections, and superior hygiene with seamless, easy-to-clean surfaces ideal for clean room panels.


As a proficient cleanroom panel manufacturer, we ensure high structural strength-to-weight ratios, excellent fire ratings from core material options, and extensive design flexibility for various cleanroom wall and cladding applications.



Q4: What types of core materials do you offer for your sandwich panels?


We offer a range of core materials to meet specific project requirements for fire safety, insulation, and budget. Our main types include Rock Wool (A2-s1, d0 non-combustible, excellent for fire-rated clean room partitions), Polyisocyanurate (PIR) / Polyurethane (PU) (superior thermal efficiency with Class B-s1, d0 fire rating, perfect for cold rooms), and Magnesium Oxide (MGO) boards (A-class non-combustible with high moisture resistance). 


We also supply specialized panels like Aluminum Honeycomb for ultra-flat, rigid applications such as premium cleanroom ceiling grid systems and High-Pressure Laminate (HPL) faced panels for highly durable, chemical-resistant surfaces in labs.



Q5: What fire ratings and international certifications do your panels hold?



Fire safety is paramount. Our panels are rigorously tested and certified to global standards. Rock Wool and MGO cores achieve the highest A2-s1, d0 (EN 13501-1) / Class A (ASTM E84) non-combustible ratings. Our PIR cores typically achieve Class B-s1, d0 (EN) / Class 1 (ASTM E84). 


We hold ISO 9001 certification for our quality management system, and our products can be supplied with CE Marking under the CPR, along with comprehensive test reports from accredited laboratories, ensuring compliance for global projects, including stringent cleanroom specifications.




Q6: How do you ensure the dimensional accuracy and flatness critical for cleanroom installations?



Precision is non-negotiable for seamless clean room wall panels and ceilings. We achieve this through fully automated, computer-controlled continuous laminating lines that apply consistent high pressure and temperature, ensuring perfect bonding and uniformity. 


Our quality control includes laser-guided cutting and stringent flatness checks, maintaining tolerances within ≤2mm/2m. This level of accuracy is essential for creating airtight, flush joints in clean room partition systems, preventing dust accumulation and facilitating easy decontamination.




Q7: How is color consistency managed across different production batches?


We implement a rigorous color management protocol. For a single project, we use pre-coated metal coils from the same manufacturer and the same production batch. For large projects requiring multiple batches, we work closely with our coating suppliers to secure sequential batches with the highest possible color match. We also provide detailed guidance on-site installation sequencing to visually blend any minimal, unavoidable variation, ensuring a uniform appearance for all cleanroom wall surfaces.




Q8: Do you manufacture the panels in-house, and what quality controls are in place?


Yes, we are a direct cleanroom panel manufacturer with full vertical integration. We operate state-of-the-art, automated production lines where the entire process—from raw material inspection to composite forming and cutting—is controlled in our facility. This allows for strict, real-time quality control at every stage, from core density verification to adhesive application and final dimensional inspection, guaranteeing the consistent performance of every clean room panel we ship.




Q9: Can you provide examples of past projects or case studies?


We have a robust portfolio of successful projects worldwide. Our clean room panels and systems have been installed in pharmaceutical cleanrooms across Europe, semiconductor fabrication plants in Southeast Asia, high-care food processing facilities, and research laboratories in the Middle East and Africa. We can provide anonymized case studies, technical data sheets, and, with client consent, references or project photographs that demonstrate our capability as a trusted clean room panel supplier for complex builds.




Q10: How are the panels packaged to prevent damage during international shipping?



We employ industry-leading packaging to ensure products arrive in perfect condition. Each panel is carefully stacked, protected with heavy-duty edge guards and corner protectors, and then securely shrink-wrapped onto reinforced wooden pallets. 


For ocean freight, we use reinforced export crates. This multi-layered protection system safeguards against transit hazards, ensuring that the cleanroom ceiling grid components and wall panels are ready for immediate installation upon arrival.




Q11: What are the correct handling and on-site storage procedures?


Proper handling is crucial. Panels must be unloaded using forklifts with padded forks, never dragged or lifted by a single point. On-site, they must be stored horizontally on a flat, level surface, supported evenly along their length by timber dunnage. Stacks should be kept to a reasonable height to prevent deformation, and the entire stock must be protected from the elements with waterproof tarpaulins. Following these steps preserves the integrity of the cleanroom wall and partition materials before installation.




Q12: What happens if the panels are damaged during transit?


Upon delivery, it is critical to inspect the cargo immediately in the presence of the carrier and note any damage on the delivery receipt. Please photograph any issues and notify us within 7 days. We strongly recommend that all shipments are covered under an All-Risks marine insurance policy. We will provide all necessary documentation (packing lists, photos, commercial invoices) to support a swift insurance claim process, minimizing project delays.




Q13: What after-sales and technical support do you offer?


Our partnership extends beyond delivery. We provide a 12-month warranty on materials and manufacturing. Our technical support team is available to assist with installation queries via email, WhatsApp, or video call. We supply comprehensive installation manuals and detailed CAD drawings. For complex projects, we can arrange online installation guidance sessions with our engineers to ensure your cleanroom ceiling and wall systems are installed correctly for optimal, long-term performance.



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