Product Details
What Is a PIR Cleanroom Panel?
A PIR cleanroom panel bonds color-coated steel facings to rigid polyisocyanurate foam. PIR retains strong insulation while forming a stable char under fire, reducing flame spread and smoke for a Class B1 rating.
Choose PIR for cold rooms and controlled-temperature suites needing high insulation plus B1 fire performance. Use rock wool or MgO rock wool where A-grade non-combustibility is mandatory.
Part of Wonclean's cleanroom sandwich panel family, the PIR 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 polyisocyanurate (PIR) closed-cell foam, density 38–45 kg/m³ |
| Thermal conductivity | λ ≈ 0.022–0.023 W/(m·K) |
| Fire rating | Fire class B1 — improved over standard PU; low-smoke char-forming |
| 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.
PIR vs PU — What's the Difference?
| Feature | PIR (this panel) | PU |
|---|---|---|
| Fire class | B1 (improved) | B1 / B2 |
| Behaviour in fire | Forms stable char, low smoke | Softens / melts sooner |
| Thermal insulation | Excellent (λ ≈ 0.022) | Best (λ ≈ 0.022) |
| Best for | Insulation + fire requirement | Lowest cost insulation — see PU panel |
Where PIR Panels Are Used
From Spec to Site — 4 Steps
Expert FAQ on PIR Cleanroom Panels
What is the difference between PIR and PU?
Both insulate well, but PIR forms a stable char and carries Class B1, making it the stronger choice where fire classification matters.
What fire rating does PIR achieve?
PIR reaches Class B1 with third-party reports available. Use rock wool or MgO where A-grade is required.
How good is the thermal insulation?
At λ around 0.022–0.023 W/(m·K), PIR achieves strong insulation at lower thickness and reduces cooling demand.
Does it control condensation in cold rooms?
Yes. Closed-cell PIR and sealed joints provide a continuous vapour barrier for condensation control.
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 PIR Cleanroom Panels?
Send thickness, facing, color, temperature, fire class and quantity for a schedule, reports and quote. Typical reply within 24 hours.
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