Product Details
What Is a PU Cleanroom Panel?
A PU cleanroom panel uses color-coated steel facings around rigid polyurethane foam. The closed-cell core provides high insulation, a strong bond and low weight, while the steel surface is anti-static, wipe-clean and corrosion-resistant.
PU suits cold rooms and controlled environments where insulation and sealing lead. Choose PIR for a higher B1 fire rating, or rock wool and MgO rock wool when A-grade non-combustibility is required.
Part of Wonclean's cleanroom sandwich panel family, the PU panel pairs with matching ceiling systems and cleanroom doors and windows for a fully sealed, flush cleanroom wall system.
Panel Anatomy — Layer by Layer
Core Features
Technical Specifications
| Panel thickness | 50 mm standard; 75 / 100 mm and other thicknesses fully customizable |
| Effective width | 1150 mm standard (1180 mm overall); 980 mm optional |
| Panel length | Cut-to-size, typically up to 6000 mm per panel; longer on request |
| Facing (steel) | Top-brand pre-painted / galvanized steel 0.4–0.6 mm; stainless steel option |
| Core | Rigid polyurethane (PU/PUR) closed-cell foam, density 38–45 kg/m³ |
| Thermal conductivity | λ ≈ 0.022–0.024 W/(m·K) — best in range |
| Fire rating | Fire class B1 / B2 by formulation; for A-grade choose rock wool / MgO |
| Weight | Lightweight ≈ 11–14 kg/m² depending on facing & thickness |
| Flatness tolerance | ≤ 2 mm / 2 m for tight, gap-minimised joints |
| Joint system | Tongue-and-groove, cam-lock or aluminium H / C connectors |
| Standards / lead time | EN 13501-1 · ASTM E84 · BS 476 · ISO 9001 · CE · China / Shanghai · ~10–25 days |
Standard configurations shown; all dimensions, steel gauge, core density, color and certificates are tailored per project — request the full datasheet & test reports.
PU vs PIR vs Rock Wool — Pick the Core
Where PU Panels Are Used
From Spec to Site — 4 Steps
Expert FAQ on PU Cleanroom Panels
When should I choose PU over PIR or rock wool?
Choose PU when thermal insulation and sealing are the top priority — cold rooms, cold-chain and controlled-temperature areas — as it has the lowest thermal conductivity. If you need a higher fire rating with similar insulation, the PIR panel (B1) is better; for A-grade non-combustible walls choose rock wool.
What is the fire rating of a PU panel?
PU cores are available in B1 or B2 flame-retardant grades, with third-party reports. Use mineral cores where A-grade is mandatory.
How good is the thermal insulation?
With λ around 0.022 W/(m·K), PU achieves strong insulation at lower thickness and helps reduce cooling energy.
Does the panel prevent condensation in cold rooms?
Closed-cell foam and sealed joints control vapour, air leakage and condensation in chilled rooms.
Which facing, color and flatness can I expect?
Pre-painted or stainless steel facings are available in matched RAL or custom colors, targeting ≤ 2 mm/2 m flatness.
What are the lead time and minimum order?
Typical lead time is 10–15 days for samples or small orders and 20–25 days for a full container, subject to specification.
Ready to Spec Your PU Cleanroom Panels?
Send thickness, facing, color, target temperature, fire class and quantity for a schedule, reports and quote. Typical reply within 24 hours.
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