System Overview A PU Cleanroom Panel bonds two coated-steel facings to a rigid polyurethane (PU) foam core — a high-insulation, airtight cleanroom wall and ceiling panel made to a ≤ 2 mm/2 m flatness tolerance. Key advantages: Superior Insulation: Lowest thermal conductivity (λ ≈ 0.022 W/m·K) — ideal for cold rooms and controlled temperatures. Airtight & Sealed: Closed-cell foam blocks moisture and air leakage for stable conditions. Lightweight & Strong: Strong facing bond, low weight and an anti-static, wipe-clean surface.