How to Choose the Right Cleanroom Panels for Your Facility

How to Choose Suitable Cleanroom Panels for Facilities

In precision manufacturing industries such as semiconductors, biopharmaceuticals, and food and personal care products, cleanrooms are the core infrastructure for ensuring compliance with production processes and consistent product quality. The construction and implementation of various types of prefab clean rooms and prefabricated clean rooms rely heavily on high-quality primary enclosure materials. Among these, cleanroom panels—as the core building material for clean spaces—directly determine the cleanroom’s classification, production safety, and long-term operational stability, and are the key to the installation of cleanroom wall panel systems.

Compared to ordinary building panels, specialized cleanroom wall panels and cleanroom panels are subject to much stricter performance standards and must simultaneously meet multiple requirements, including fire safety, structural stability, low-dust cleanliness, and resistance to disinfection and ease of cleaning. Most prefabricated cleanrooms on the market can be flexibly customized according to site conditions and paired with suitable panel specifications; standard FRP panel sizes can meet the construction needs of the vast majority of general-purpose cleanrooms. If the selected panels do not comply with specifications or are incompatible with production conditions, it can easily lead to issues such as substandard cleanroom cleanliness, product contamination and scrapping, and production line shutdowns for corrective actions. At the same time, this creates safety hazards such as wall panel detachment and fire protection failure, significantly increasing the company’s subsequent remediation and operational maintenance costs.

To this end, drawing on years of practical experience in cleanroom engineering, this article systematically outlines the key considerations for standardizing the selection of cleanroom panels from three core perspectives—fire resistance, structural strength, and suitability for operating conditions—to help companies make informed material choices and avoid common pitfalls in the selection process.

01 Prioritize Fire Resistance

Cleanrooms are enclosed, high-density production spaces where equipment and materials are concentrated. They present a high risk of fire, rapid fire spread, and significant challenges in fire suppression. Therefore, fire resistance is the primary safety criterion when selecting cleanroom panels, and all material selections must strictly comply with the relevant standards of the Code for Design of Cleanrooms (GB50073-2013).

Regarding material selection, core enclosure structures such as cleanroom ceilings, walls, and partitions must use Class A inorganic non-combustible panels, such as rock wool or glass wool; the use of flammable organic composite panels is strictly prohibited. Organic panels have poor fire resistance; they are highly susceptible to rapid fire spread and release large amounts of toxic smoke when burning. This not only accelerates the spread of the fire and threatens human life but also damages precision equipment and finished products, resulting in significant economic losses.

Fire resistance ratings must be tailored according to the functional zoning of the facility. For conventional clean production areas, the fire resistance rating of ceilings and wall panels must not be less than 0.4 hours, which effectively slows the initial spread of fire and buys valuable time for personnel evacuation and initial firefighting efforts. As critical escape routes for occupants, evacuation corridors are subject to even stricter fire resistance requirements—they must meet a fire resistance rating of at least 1.0 hours. Furthermore, the overall structure of the panels must remain stable and intact; they must not detach or collapse under fire conditions, ensuring that escape routes remain unobstructed at all times and comprehensively reinforcing the facility’s fire safety defenses.

02 Focus on Verifying Structural Strength

Cleanroom panels not only serve the function of dust prevention and bacterial control but must also withstand external forces such as equipment loads, personnel impacts, and wind pressure disturbances over the long term; their structural strength directly determines the stability and service life of cleanroom facilities. Currently, the industry-standard metal-faced sandwich cleanroom panels use a deflection of L/250 as the baseline deformation standard, and panel selection must be tailored to the differences between the two primary application scenarios: walls and ceilings.

The flexural strength of wall-mounted cleanroom panels must be no less than 0.5 kN/m². Superior impact resistance can withstand minor collisions caused by daily material handling and equipment maintenance, preventing panel damage, surface peeling, and core exposure, thereby reducing dust generation at the source. At the same time, compliant wall panels can stably support the installation loads of wall-mounted piping and small-scale process equipment, effectively preventing structural hazards such as wall deformation, loosening, and cracking, and reducing the frequency of routine maintenance.

Ceiling areas are subject to greater load-bearing pressures, as they must support the weight of equipment such as ventilation ducts, cleanroom lighting fixtures, and fire protection systems. The bending strength must be no less than 1.2 kN/m², which effectively prevents ceiling sagging, deformation, and detachment, eliminating risks such as equipment falls and workshop shutdowns. For large-span ceiling areas, the panel strength can be moderately increased to further enhance structural safety.

03 Precise Matching to Operating Conditions

Ensuring a clean environment and adapting to production processes are the core values of cleanroom panels. When selecting a model, avoid a “one-size-fits-all” approach; instead, choose the right solution based on industry-specific characteristics, cleanliness levels, and production conditions.

General-purpose cleanrooms impose stringent requirements on the basic quality of panels. The panel surfaces must be flat and smooth, free of pores and cracks, and the joints must be tightly sealed to prevent dust generation, powder shedding, or particle detachment from the panels themselves, thereby laying the foundation for a clean environment. At the same time, the panels must possess excellent scrub resistance and disinfection tolerance, capable of withstanding routine cleaning and disinfection spray operations. They should resist discoloration and damage over long-term use, making it easy to maintain stable cleanroom conditions while reducing operational and maintenance complexity and costs.

Different industries and specific operating conditions impose unique performance requirements on cleanroom panels. In electronics and semiconductor cleanrooms, anti-static, low-dust-emitting cleanroom panels and cleanroom wall panels must be selected to effectively prevent static electricity from attracting dust and damaging precision components, thereby avoiding product short circuits and scrapping. In high-end clean environments such as pharmaceutical facilities, biological laboratories, and medical device manufacturing—where disinfection occurs frequently and chemicals are highly corrosive—specialized panels resistant to acids, alkalis, aging, and corrosion must be used. These panels can withstand repeated disinfection with agents such as alcohol, hydrogen peroxide, and sodium hypochlorite over the long term without damage, discoloration, or microbial growth, thereby eliminating the risk of biological contamination at the source and ensuring the production and experimental safety of prefab clean rooms and prefabricated clean rooms, while also allowing for flexible adaptation to standard FRP panel sizes based on site dimensions to accommodate various cleanroom renovation and new construction projects.

Summary Table of Standardized Selection Parameters for Cleanroom Panels