In-depth Analysis of Cleanroom Panel Types: A Complete Guide to Selection, Materials & Applications

1. Rock wool sandwich panels: the ideal choice for fire resistance and thermal insulation.

Rock wool panels represent one of the most widely used cleanroom partition panels in industries where fire safety is paramount. These panels consist of a core made from basalt rock and recycled slag, sandwiched between facing materials such as color steel, stainless steel, or aluminum.

The thermal performance of rock wool panels is exceptional, with typical thermal conductivity values ranging from 0.032 to 0.044 W/m·K. For a standard 50mm thick panel, this translates to an R-value of approximately 1.1 to 1.5 m²·K/W, making them highly effective for temperature-controlled environments.

Deiiang™ engineers specify rock wool panels for pharmaceutical facilities where fire compartments must withstand temperatures exceeding 1000°C for up to 2 hours. According to Jason.peng, "In our pharmaceutical projects, we've documented 23% energy savings compared to standard insulation when using properly installed rock wool cleanroom wall panels."

Structural diagram showing rock wool core with steel facings

2. Magnesium oxide sandwich panels: a comprehensive solution for moisture resistance, high strength, and fire resistance.

Magnesium oxide panels offer a comprehensive solution for environments demanding moisture resistance alongside fire safety. The core comprises magnesium oxide (MgO), magnesium chloride, and reinforcing materials, creating a chemically stable and durable composite.

These panels demonstrate exceptional performance in high-humidity environments, with moisture absorption rates typically below 8% even at 90% relative humidity. The compressive strength ranges from 0.5 to 1.2 MPa, making them suitable for load-bearing applications in multi-story cleanroom facilities.

Deiiang™ has implemented magnesium oxide cleanroom panel types in over 45 food processing facilities where humidity levels regularly exceed 75%. Jason.peng notes, "Our testing shows MgO panels maintain dimensional stability with less than 0.3% expansion in 95% humidity conditions, outperforming traditional materials by 68%."

Structural composition of magnesium oxide panel

3. Paper honeycomb sandwich panels: a lightweight, economical, and environmentally friendly choice.

Paper honeycomb panels provide an economical and lightweight solution for cleanroom applications where extreme environmental conditions aren't a primary concern. The hexagonal cell structure of impregnated paper creates remarkable strength-to-weight ratios despite the lightweight nature.

With densities ranging from 20 to 50 kg/m³, these panels offer significant weight savings—up to 70% lighter than equivalent rock wool panels. The typical compressive strength of 0.3-0.8 MPa makes them suitable for non-loadbearing partitions in ISO Class 7 and 8 cleanrooms.

Deiiang™ utilizes paper honeycomb cleanroom partition panels primarily in electronics assembly areas where weight considerations are critical. Jason.peng explains, "For a recent Semiconductor project, we reduced structural support costs by 34% by specifying paper honeycomb panels in non-critical zones, achieving the required cleanliness at 62% of the material cost."

Hexagonal paper honeycomb core structure

4. Aluminum honeycomb sandwich panels: a model of ultimate flatness, high strength, and corrosion resistance.

Aluminum honeycomb panels represent the premium segment of cleanroom wall panels, delivering exceptional flatness, strength, and corrosion resistance. The aluminum honeycomb core, typically with cell sizes of 3-25mm, creates a rigid structure with minimal material usage.

These panels achieve remarkable stiffness-to-weight ratios, with typical deflection of less than 1/300 of span under design loads. The surface flatness tolerance is typically ±0.5mm over a 3m span, making them ideal for semiconductor and aerospace applications where minimal particulate generation is critical.

Deiiang™ specifies aluminum honeycomb panels for ISO Class 3-5 cleanrooms in semiconductor fabrication. Jason.peng notes, "In our precision optics cleanrooms, we've measured particulate counts 47% lower with aluminum honeycomb systems compared to conventional panels, directly impacting yield rates."

Aluminum honeycomb core with various facing options

5. PU/PIR sandwich panels: The professional choice for superior thermal insulation performance.

Polyurethane (PU) and polyisocyanurate (PIR) panels deliver unmatched thermal performance for cleanrooms requiring precise temperature control. The closed-cell foam structure provides exceptional insulation with thermal conductivity values as low as 0.022 W/m·K.

The insulation efficiency of these panels significantly impacts operational costs. For example, a 40mm PIR panel (λ=0.024 W/m·K) provides equivalent insulation to an 80mm rock wool panel (λ=0.040 W/m·K), allowing for space savings while maintaining thermal performance.

Deiiang™ has documented energy savings of 18-27% in cold storage cleanrooms using PIR panels compared to traditional insulation. Jason.peng states, "Our pharmaceutical cold room projects using PIR cleanroom panel types maintain temperature stability within ±0.5°C while reducing refrigeration energy consumption by approximately 22% annually."

Closed-cell foam structure of PU/PIR panels

6. Stainless steel sandwich panels: the ultimate solution for high corrosion resistance and high cleanliness.

Stainless steel panels represent the ultimate solution for cleanrooms requiring maximum corrosion resistance and cleanability. Typically featuring 304 or 316L stainless steel facings with various core options, these panels withstand aggressive cleaning agents and sterilization processes.

The surface smoothness of stainless steel panels, typically achieving Ra < 0.5μm, minimizes particulate adhesion and facilitates effective cleaning. The non-porous surface prevents microbial colonization, with studies showing 99.7% reduction in bacterial viability compared to porous surfaces.

Deiiang™ specifies stainless steel cleanroom wall panels for bio-pharmaceutical facilities requiring regular vaporized hydrogen peroxide (VHP) sterilization. Jason.peng explains, "Our testing shows 316L stainless steel panels maintain integrity through 500+ VHP cycles without degradation, while coated alternatives show signs of deterioration after 150-200 cycles."

Stainless steel panel with various core options