Clean Room Walls

  • The Walls are Airtight
  • Integrated Flat Surface Easy Clean
  • Clean Room with Impressive Insulation
  • Fire Resistance up to 4 Hours
  • Wall Inside Reinforced With Steel Tubing
  • Rockwool Panel
  • Rockwool Panel
  • Rockwool Panel

Your Reliable Partner and Manufacturer of Clean Room Walls

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The most popular clean room walls are made of PPGI steel, PCGI steel, stainless steel or melamine skin sandwich panel. The Zonsteel clean room walls panels, due to their special joint method, they can be flush connected with doors, windows, aluminum extrusions etc. Such a feature makes the clean room inner surface flat thus minimizing bacteria from collecting, and make it easy to clean. The walls are also rigid and air tight, to help maintain the clean room cleanliness.


Zonsteel clean room walls, thickness available from 50mm to 100mm. High-quality thermal insulation core materials available with the walls include rock wool, PU, aluminum honeycomb, paper honeycomb, MGO, or rock wool plus MGO board. The strongest and best fire-resistant wall is the 100mm rock wool sandwich panel, with extra two layers of MGO board. This panel is both 0.5mm steel surface, with the core 130kg/m3 rock wool and double 9mm MGO boards. This panel can reach up to 4 hours of fire-resistance.

Contact us to customize your Clean Room Walls now!
Thickness50mm 75mm 100mm 120mm 150mm 180mm 200mm
Available Thickness0.4, 0.5, 0.6mm, or custom made 0.8, 1mm
Panel LengthMaximum length for wall 6000mm, for ceiling 3000mm
Panel Width898, 950,980, 1150, 1180 mm and any customized width
Available Surface MaterialsPainted steel, stainless steel, fiberglass reinforced plastic (FRP), polyvinyl chloride (PVC), and high pressure laminates(HPL)
ColorAny RAL color
Features Excellent thermal insulation, No fluorine, Eco-friendly, Anti-corrosion, Mildew resistance
Operating temperature range -200 ° C ~ +110 °C
K Value (Thermal Conductivity)0.035 W/mK
Rockwool Density120 kg/m3
Fire PropertyA1
Bonding Strength60kPa
Peel Strength 150kPa
PDF Catalog

Clean Room Walls: The Complete Guide

Zonsteel clean room walls sandwich panels are sealed by a steel profile all the way around to prevent core materials from leaking thus contaminating clean room air. The walls are connected by the 中-shaped profile kit. The joint has a 2mm gap that can be sealed with the provided sealant. The connection kit is invisible so that you can see the walls being totally flat and well-sealed. The joint is also quite strong.

Zonsteel clean room walls surfaces could be painted with PVDF, HDP, PVC etc. Or melamine skin, SECC skin and stainless-steel skin.

The cleanroom walls are ideal for medical, lab, food, IT, new energy etc. industries.

Zonsteel clean room walls have embedded steel tubing to reinforce its strength. This is when the walls height is tall, like higher than 6m. This measurement taken to have whole wall flat and no bends. The wire conduits are also embedded in to the walls to keep the wires invisible.

Zonsteel professional installation engineers could be sent on site to set up the clean room. Or you can contract a local experienced construction company to do so. Zonsteel offers a general installation manual and video. For clean room walls assembling process, Zonsteel usually send accessories together with walls such as an adjustable alu floor channel, alu U channel, sealant, screws and bolts, arc skirt board, corner flashing, and alu corner connection piece. The accessories are important to complete the clean room wall installation. They are sent as part of a turnkey project to save on cost and time

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Clean Room Walls: The Complete FAQs Guide

The clean room walls play an important role in ensuring the cleanroom works as expected. It is why the type of clean room walls a manufacturer makes is vital. This guide focuses on the different types of clean room walls Zonsteel uses to make the best clean rooms. It also looks at other questions you might have in mind about the different walls for clean rooms.

What is the Composition of a Clean Room Wall?

Workers Installing Clean Room Walls

Figure 1 Workers Installing Clean Room Walls

A clean room wall is made of steel skins or faceplates with an insulation core between the steel plates. The result is that you end up with an insulated sandwich panel ideal for various clean room applications.

Depending on the clean room wall application, the thickness will vary from 50mm to 100mm. The thickness can be customized better at the factory once the manufacturer understands the purpose of the clean room.

Are Clean Room Walls Bacteria Free?

Yes. The clean room walls are designed to be bacteria free considering where they have to be used. The manufacturer ensures the panels are flush with each other during installation. As a result, bacteria cannot easily collect on the surface of the clean room walls.

This type of installation will also make it easier to clean the walls better. Always come up with a comprehensive cleaning schedule to ensure the clean room walls can remain bacteria-free so that your research or manufacturing process is not affected.

How do Clean Room Walls Improve Air Tightness?

The air tightness of the clean room walls depends on how the walls are installed. Make sure that you use the recommended installation accessories to encourage better connection between the panels. Yes, you might have a gap, but the gap will be sealed by applying a strong sealant between the two panels.

The strong sealant will help to maintain the overall airtightness of the clean room. If the installation is done right, the clean room can maintain its cleanliness without a problem.

It is worth testing the particle counts from time to time in the clean room to ensure it stays within the desired range. If it seems that the count is higher, you may have leaks in your clean room joints. Seal them where necessary to further improve the air tightness of the clean room walls.

In case you also have a damaged clean room wall, consider repairing it in time or replacing it if the damage is too much. This will ensure you always get to enjoy using the clean room without worrying about leakages.

What is the Size of Clean Room Walls?

The size largely depends on the user needs. There are times you might need a thicker clean room wall while sometimes the standard size is okay for the job. So, the common size options include a thickness of 50 to 100mm. As for the length and width, those will change depending on the clean room wall use.

The clean room walls will be precut and predrilled at the factory before shipping them to the client. The aim is to make the job easier when it comes to setting up the cleanroom walls.

Any information about the clean room walls customization will be sent to the client for approval first. This is to ensure the final size of the walls is what the client needs.

What Materials are Used as the Core of Clean Room Walls?

A Completed Cleanroom Ready for Use

Figure 2 A Completed Cleanroom Ready for Use

The core materials are important to give the clean room walls their insulation and performance properties. It is why you need to learn more about the composition of the core materials. The most common core materials include rockwool, PU, paper honeycomb, MGO, rockwool plus MGO board, and aluminum honeycomb.

All these materials exhibit different performance features crucial for the working conditions of a clean room. The team at Zonsteel would explain it better to you so that the right material is used as the core for the clean room walls.

The rockwool sandwich panel with thickness of 100mm is the best in thermal insulation and fire resistance. This panel can offer up to 4 hours of fire resistance, unlike when using the other options. With such a performance on fire resistance, it should be ideal for cleanrooms that might need more protection.

You could still opt for a clean room wall having 130kg/m3 of rockwool and double 9mm MGO boards. This panel combines the benefits of the two core materials, making it easier to enjoy the benefits that come with it.

What are the Properties of Clean Room Walls?

If you have used clean rooms before, you know the walls can be made of different materials; however, the trend is now insulated sandwich panels. Why is this the case? Below are some of the properties you will experience when using the Zonsteel clean room walls.

– These walls have the best heat insulation. Regardless of where you set up the clean room, it would be able to live up to your insulation needs. The same walls are great cold and moisture insulators.

– The users love these clean room walls for having the best noise insulation. This is because you can now have better insulation from the outdoor noise and focus better on the project at hand. It is easy to see how such panels can come in handy for home use.

– Fire resistance is a big deal when picking clean room walls. Well, that is not an issue when working with the Zonsteel clean room walls. You can now get the best walls that will slowdown the spread of fire in case one erupts in the clean room.

– The panels are also antifungal and rot-proof. Such a feature is great to minimize the amount of contamination that would get into the clean room. Still, the panels would still have the best durability since they are rot-proof. No need to replace them all the time.

– The clean room walls are available in different color options. You can see how it would be easier to make the clean room look as you want. Since it is painted steel, the durability of the paint is quite impressive.

– The clean room walls are generally lightweight. As such, you never have to worry about the installation being hard. Well, you might still need lifting machines for installing ceiling, but this is because of the size of the panels and how high you have to set up the ceiling.

Why is Steel Necessary for Clean Room Wall Construction?

Inside a Fully Equipped Cleanroom

Figure 3 Inside a Fully Equipped Cleanroom

Zonsteel uses steel as one of the skins for clean room walls. This is because steel is generally a durable material. You will have an easy time using the clean room for decades since the steel material can withstand different environments.

Also, steel can be good to lower the project costs. Comparing it to some other popular materials, steel can still be the most cost-effective option.

That is not all, as steel can also be molded into different shapes. As much as the panels are mostly straight, you at least know there is the option of molding the material to suit your needs.

How Strong is the Joint Between Two Clean Room Walls?

It is a very strong bond to ensure there are no leaks from outside the cleanroom. The manufacturer sends you the correct sealant as part of the installation accessories. The idea is to ensure you are using high-quality accessories to form a strong joint.

The seal can also last for years without needing a retouch if you can seal it correctly. Ensure you get it done right as instructed by the manufacturer for the best airtight seal.

What Other Materials Can Be Used as the Clean Room Wall Panel’s Skin?

Zonsteel clean room wall surfaces can vary, depending on the use. The most common options are PVDF, HDP, PVC, melamine skin, SECC skin, and stainless steel skin. Let us say you want to use the clean room for food processing applications; then stainless steel skin option is highly recommended. So, the use and budget can determine which clean room wall skin to get.

Where Best Can You Use Clean Room Walls?

The clean room walls, as the name suggests, will be ideal for making clean rooms. So, the ideal use for such clean room walls is in industries such as medical, labs, food, IT, and new energy. More applications can come up after doing proper research on a project. A good example is when you use the clean room walls for partitioning your office or house. Remember they have the best insulation, rigidity, durability, among other benefits.

What is the Height of a Clean Room Wall?

A Forklift Used to Carry Clean Room Walls

Figure 4 A Forklift Used to Carry Clean Room Walls

The clean room walls usually from 3m to as high as even 15m. Even with this height, most of the time, transportation is not an issue. If you can access a forklift, a sucker, a lifter, you will have an easy time transporting the walls to their destination easily.

Ensure all the clean room walls are kept flat all the time. Such an activity is important to prevent bending while working on the walls.

How Are the Wires Kept Invisible?

The wires are kept invisible by embedding the wire conduits into the clean room walls. The embedding of the conduits will leave you with a clean look generally. No one needs to see the wires all over the place. Also, the hanging wires can be bad for maintaining the clean room integrity as more dust can accumulate on them. It is why they would be hidden in most cases.

Where Can You Get Professionals to Install Clean Room Walls?

One of the common options would be hiring Zonsteel to do the installation for you. Zonsteel understands clean room walls better, so the installation will be faster and done professionally. So, if you ever need clean room walls installation, request the installation service.

The other option is hiring a local contractor to get the job done. However, ensure the contractor has experience in setting up clean rooms. You do not need the panels to be easily damaged while installing.

Zonsteel can also be on standby to help answer any questions you might have in mind during the installation phase. The idea is to help in setting up the clean room walls correctly.

Why Pick Zonsteel’s Clean Room Walls?

Here are a couple of reasons why clean room walls from Zonsteel are highly sought-after.

– Zonsteel has decades of experience working on clean room walls. Therefore, it is possible for the company to make high-quality clean room walls that will give you the best performance generally.

– The company can handle any special needs you might have about clean room walls. This is to ensure you always have the best clean room walls for the job at hand.

– Zonsteel is a company with competitive prices. You do not have to spend so much on clean room walls when the company can offer better deals. Even when with better deals, you will still get quality clean room walls.

– Having a new production line means that Zonsteel can deliver on the clean room walls faster. Unlike other brands that might take weeks to produce the walls, Zonsteel can do it in a couple of days and send them to the client.

– A highly qualified customer care team will attend to your needs ensuring you pick the correct clean room walls. The last thing you need is to find out that you bought the wrong clean room walls for the application during installation or operating time.

How Do You Pick the Right Type of Clean Room Wall Surface for an Application?

Cleaning the Clean Room Walls

Figure 5 Cleaning the Clean Room Walls

The wall surface type generally depends on the use of the clean room. Let us say it is a pharmaceutical clean room environment, the walls have to stand up to a wide range of cleaning solutions. This is because you need to clean and disinfect more often to maintain the clean room integrity. Sometimes the cleaners can be aggressive, so using clean room walls with steel skin is highly encouraged as it can hold up to different cleaners with ease.

If you are working in a microelectronics or semi-conductor environment, the major concern would be how the walls can dissipate static electricity. Also, the walls should not influence the build-up of static electricity. When you talk to the team of engineers at Zonsteel, they would tell you more about the kind of clean room walls to use for the project.

Other than Financial Benefits, What are the Other Benefits of Modular Clean Room Walls?

Modular clean room walls are better in terms of speed as the first benefit. This is possible because the walls are made off-site, and only erecting them is necessary while on-site. So, it will be easier and faster to complete a project.

The other advantage is cleanliness. When using the traditional methods, you will have to set up different layers of surfaces before the wall can be clean room ready. However, the clean room walls are designed and manufactured to be ready for installation without doing any modifications.

The other advantage is that the modular clean room walls would be able to stand up to quality checks. The factory such as Zonsteel is ISO certified, which means that the company has to follow the regulator’s requirements to meet specific standards. As such, you will always have better quality with modular clean room walls than traditional methods.

What Influences the Type of Core Material Used in a Clean Room Wall Panel?

As much as cleanliness is important, those are not the only reasons for picking the core material in a clean room wall panel. The first factor is the fire rating. Consider understanding how long the clean room wall can withstand the fire in case there is an outbreak. Also, why would you want the fire contained in a certain area? That is one of the questions to keep in mind so that you can have the right clean room wall generally.

You also have to consider the insulating values of the core material. Maybe you want to maintain the clean room within a certain temperature range or humidity, thus the reason to consider the insulating values.

The best part is that Zonsteel can help you understand the differences between core materials. It is from such differences you would know which is the ideal for your clean room.

How Often Should You Clean the Clean Room Walls?

There is no particular frequency for cleaning clean room walls. In most cases, it would be daily, weekly, or as needed. Each of the categories would have specific things you can do to clean the clean room walls.

For daily, you will mostly be vacuuming the walls and use wipes where necessary. This should be done at the end of each shift to ensure the staff can get a clean work are the next day.

Weekly cleaning can involve more thorough cleaning. You may have to use a damp sponge soaked in distilled water then vacuum dry the walls. The same applies to some other equipment in the clean room.

The other category is as-needed basis. This is when you have a spill or other types of dirt that have to be removed immediately. Ensure that you always have your cleaning supplies close and use them whenever necessary.

Can You Use Clean Room Walls for Ceiling Construction?

Yes. Ceiling construction for your clean room needs to have the same integrity as the walls. It is why the panels also come in handy to help keep the room air tight.

The ceiling construction needs lifting machines as the panels can be long and lifting to a high position might not always be easy.

Once the ceiling is set up, provisions for lights and ducts for the FFU and other equipment will be cut out from the ceiling. The lights also have to be made flush with the ceiling to maintain the integrity of the clean room.

How Do You Buy Clean Room Walls?

If you are interested in getting yourself the best clean room walls, Zonsteel is ready to help you initiate the purchase.

The first step is contacting Zonsteel with your intent to purchase clean room walls highlighting as many details as possible. The aim is to ensure that the team can understand your clean room purpose and recommend the right walls for the project.

Once everything has been confirmed, the order will be approved, and then production can commence. Once the production phase is done, the clean room walls are shipped to the client.

The team at Zonsteel is helpful in guiding you through the whole process. You would also have an easy time tracking the order progress by working with the customer care staff.

How Long Does It Take to Receive Clean Room Walls?

It does not take long for Zonsteel to send you the clean room walls. On average, it can be within 14 days and the delivery will be made. In case there are any special needs that have to be addressed, then you will be told the accurate timeframe once the order has been approved.

The panels are correctly packaged to prevent bending or warping during transportation. This is to ensure the clean room walls work as expected upon installation.


At this point, you can understand why clean room walls are popular among those who want new clean rooms. The walls will provide a great environment necessary for conducting your research and experiments easily without worrying that there will be contamination.

The Zonsteel team is ready to start working on your order for clean room walls once you get in touch. You can still contact the team if you have any more inquiries about clean room walls.

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