Selection of Stainless Steel FFU vs Powder-Coated FFU for Pharmaceutical Workshops
I. Core Advantages and Disadvantages of Two Materials
Powder Coated FFU
Advantages: Low price, lightweight, suitable for low-sterilization outsourcing/warehousing Class D areas.
Disadvantages: Prone to powdering and rusting after hydrogen peroxide and ozone fumigation; risk of particulate contamination; Class A/B/C areas cannot pass GMP inspections; short lifespan.
304 Stainless Steel FFU (316L for corrosive conditions)
Advantages: Resistant to strong disinfection, no shedding, easy to clean, no biofilm, meets GMP requirements for aseptic areas, long service life.
Disadvantages: High purchase price; ceiling reinforcement required.
II. Direct Selection by Workshop
Class A/B/C Aseptic Areas, Injectables, Regular Fumigation Required: 304 Stainless Steel is a Must; Acid and Alkali Raw Materials Should Use 316L.
Solid Preparations Class D, Minimal Fumigation: Thickened Powder Coated Optional for Limited Budgets; Stainless Steel is the Direct Choice for Long-Term Compliance.
Outsourcing, Warehousing Auxiliary Clean Areas: Powder Coated Offers the Best Cost-Effectiveness.
III. Mandatory Procurement Requirements
Stainless Steel: Actual Price List 304/316 stainless steel, seamless full-welded electrolytic polishing, accessories of the same material.
Powder-coated version: Coating thickness ≥80μm, salt spray test ≥400h, for use only in dry environments with minimal disinfection.
Summary: High-frequency fumigation/aseptic workshops → Stainless steel; Low-disinfection auxiliary areas only → Powder coating.