How do you choose the appropriate core material for cleanroom panels?

Selecting the appropriate core material is one of the most critical decisions in cleanroom design. The performance of the core material directly impacts the panel’s fire resistance, moisture resistance, thermal insulation, sound insulation, structural strength, and long-term stability.

Different cleanroom environments require different core materials. This guide outlines how to select core materials for cleanroom panels based on fire safety, humidity conditions, ceiling applications, and thermal or acoustic insulation requirements.

1. Choose the Core Material Based on Fire Safety Requirements

If Fire Resistance Is a Priority

For cleanrooms with strict fire safety requirements, commonly considered core materials include:

Magnesium oxide board (MgO)
Magnesium sulfate board
Rock wool

2. Choose Based on Workshop Humidity

Dry Workshop: Magnesium Sulfate Board or Rock Wool

For relatively dry production environments, magnesium sulfate board and rock wool can be considered depending on the required fire, thermal, and structural performance.

Humid Environment: Silica Rock Board or Phenolic / PIR-Type Core

· Moisture resistance
· Low water absorption
· Resistance to moisture-related degradation
· Dimensional stability
· No powdering / efflorescence under appropriate conditions

3. For Cleanroom Ceiling Panels, Consider Structural Strength

Recommended Cores for Ceiling Applications

· MgO board
· Magnesium sulfate board
· MgO rock wool composite panel

4. For High-Temperature and Noisy Areas: Rock Wool

High-Temperature or Noisy Workshop : Rock Wool

Rock wool cleanroom panels are suitable for areas where thermal insulation and acoustic performance are important.

Suitable for:

· Machinery rooms
· Production workshops
· Areas with high equipment noise
· High-temperature production areas
· Industrial cleanrooms

Project Requirements

When selecting suitable cleanroom panels, one should not focus solely on the core material. Factors such as panel thickness, steel sheet gauge, core density, fire rating, moisture resistance, connection systems, span capabilities, and installation conditions should also be evaluated based on project requirements.

For applications in pharmaceuticals, healthcare, food processing, electronics, laboratories, and other controlled environments, it is recommended to verify the required fire rating, humidity conditions, ceiling load capacity, temperature, and hygiene standards before selecting a panel system.