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A Magnesium Oxide Rock Wool Cleanroom Panel bonds two A1 magnesium oxide (MgO) facings to a high-density rock wool core — an all-inorganic, fireproof and moisture-proof cleanroom wall and ceiling panel built to a ≤ 2 mm/2 m flatness tolerance. Key advantages:
A magnesium oxide rock wool cleanroom panel is a composite sandwich board built from two rigid magnesium-oxide (MgO) sulfate boards bonded to a high-density rock wool insulation core. The MgO boards act as the structural "skeleton" — anti-sag, fully mould-proof and classified A1 non-combustible — while the mineral-wool core adds A-grade fire resistance, thermal insulation and acoustic damping. The combination gives a single, all-inorganic panel that meets the surface, fire and hygiene demands of a controlled environment.
Because both the facing and the core are mineral-based, the panel will not rust, off-gas or absorb moisture the way a color-steel or organic-core board can. It is the wall and ceiling system of choice where a project must pass a strict fire-code audit and still survive daily disinfection and wash-down — pharmaceutical cleanroom wall systems, GMP suites and laboratory partitions. It belongs to Wonclean's cleanroom sandwich panel family, alongside rock wool, PIR and aluminum honeycomb cores.
As an experienced cleanroom panel manufacturer, Wonclean produces every board on a high-precision automated line and can supply matching ceiling panels, doors and windows for a fully sealed, flush-finish enclosure.
| 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 | Double-sided magnesium oxide (MgO) board, 3–4 mm; optional HPL / PVC / painted finish |
| Core | Rock wool, density 100 / 120 / 128 kg/m³; vertical-fiber option for higher strength |
| Fire rating | Facing A1 non-combustible; core A-grade; fire resistance up to 1–2 h by thickness |
| Thermal conductivity | Core ≈ 0.040 W/(m·K) |
| Sound reduction | Rw ≈ 30–35 dB depending on thickness & density |
| Flatness tolerance | ≤ 2 mm / 2 m for tight, gap-minimised joints |
| Joint system | Handmade or machine-made; 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, core density, surface finish and certificates are tailored per project — request the full datasheet & test reports.
| Core type | Fire class | Thermal / acoustic | Best for |
|---|---|---|---|
| MgO + Rock wool (this panel) | A1 facing / A-grade core | Excellent fire, very good acoustic, moisture-proof | Fire compartments, GMP, wash-down rooms |
| Steel + Rock wool | A-grade | Strong fire & acoustic, metal facing | General cleanroom walls |
| PIR / PU | B1 | Best thermal insulation, lighter | Cold rooms, temperature control |
| EPS | B1 / B2 | Economical, lightweight | Budget / low-risk areas |
| Aluminum honeycomb | A-grade | Very flat & light, high rigidity | Ceilings, high-grade flush walls |
| Feature | MgO Rock Wool Panel | Color-Steel Rock Wool Panel |
|---|---|---|
| Facing combustibility | A1 non-combustible mineral board | Non-combustible steel + organic paint |
| Corrosion / rust | Will not rust — fully inorganic | Can corrode if coating is scratched |
| Humidity / mould | Mould-proof, zero swelling | Good, surface-coating dependent |
| Surface finish options | Coated MgO, HPL, PVC or painted | Pre-painted steel colors |
Both share an A-grade rock wool core, but the MgO facing is itself A1 non-combustible, will not rust, and is mould-proof with zero swelling in humid wash-down rooms. It is the safer choice for fire compartments, GMP suites and wet processing areas, and accepts HPL, PVC or painted finishes.
The MgO facing is A1 and the rock wool core is A-grade non-combustible, with fire resistance reaching 1–2 hours depending on thickness. We supply third-party fire test reports and certificates to EN 13501-1, ASTM E84 and BS 476 on request.
Yes. The rigid double-MgO skeleton plus anti-sag reinforcement gives high bending strength, so the panel can serve as an accessible (walkable) ceiling when correctly framed. Tell us the span and load and we will recommend thickness and core density.
Panels are produced to a flatness tolerance of ≤ 2 mm/2 m with built-in reinforcement against sagging. For export they are stacked flat, film-wrapped with edge protectors and crated in plywood boxes for long-haul sea freight, with clear unloading and handling instructions.
Standard is a coated MgO surface; optional HPL, PVC film or painted finishes are available in RAL or custom colors. For a single project we use the same batch to keep color consistent; for large multi-batch orders we coordinate with the mill and can zone any unavoidable variation by room.
Sample/small orders typically ship in 10–15 days and a full container in about 20–25 days from Shanghai. Thickness, finish and certificates are made to order — send your panel schedule and we will confirm exact MOQ, lead time and FOB/CIF/DDP pricing.
Send us your thickness, fire rating, surface finish, ISO/GMP class and panel quantity. Our engineers return a panel schedule, test reports and a factory-direct quotation — typically within 24 hours.
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System Overview A Rockwool Cleanroom Panel bonds two corrosion-resistant color-steel facings to a high-density rock wool core — an A-grade fireproof, sound-insulating cleanroom wall and ceiling panel made to a ≤ 2 mm/2 m flatness tolerance. Key advantages: A-Grade Fireproof: Non-combustible mineral-wool core with up to 1–2 h fire resistance. Durable Steel Facing: Top-brand coated steel — corrosion-resistant, anti-static, no dust accumulation. Thermal & Acoustic: Dense rock wool damps noise and stabilizes temperature for HVAC.
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Room JT30151, Building 4, Area B, No. 925 Yecheng Road, Industrial Zone, Shanghai,China
Info@wonclean.com
Allen@wonclean.com
Joy@wonclean.com
+86 13671979988(Allen)+86 15950938878(Joy)
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