A cleanroom is validated by particle counts, but it is built by joints: the seam that opens under pressure, the base that traps disinfectant, the corner nobody can reach with a mop. We make the wall and ceiling panels and supply the floor, and we publish the surface data a validation protocol actually checks.
ISO 14644-1 does not classify products. It classifies a room by the particles it holds at rest and in operation: ISO 5 permits 3,520 particles of 0.5 µm and larger per cubic metre, ISO 7 permits 352,000, ISO 8 permits 3,520,000. In pharmaceutical work these map onto the GMP grades — Grade C areas commonly to ISO 7, Grade D to ISO 8.
No panel delivers a class on its own; air changes, pressure cascade, filtration and human behaviour do the rest. What the panel controls is the part it can ruin: whether the face sheds, whether the joint stays shut at positive pressure, and whether the envelope can be wiped down without going dull or soft.
GMP states it plainly — surfaces smooth, impervious and unbroken, cleanable, resistant to the disinfectants in use. That is a specification for a joint as much as for a face, which is why we draw the junctions before quoting.
Every value carries its standard. Where the column reads “report on request”, the report is sent with the quotation.
| Product | Parameter | Result | Test standard |
|---|---|---|---|
| Medical clean wall panel | Fire classification | Class A | Report on request |
| Medical clean wall panel | Surface gloss | Diffuse, gloss reduced 42.9% | Manufacturer test |
| Medical clean wall panel | Dust behaviour | No dust generation, no accumulation | Manufacturer test |
| Medical clean wall panel | Installation | Modular, prefabricated, dry-fix | Manufacturer test |
| Glass-fibre resin wall panel | Fire classification | Class A non-combustible | Report on request |
| Glass-fibre resin wall panel | Chemical resistance | Disinfectant-resistant, stain-resistant | Report on request |
| GRP antibacterial ceiling | Fire classification | A2-S2,d0,t0 | EN 13501-1 |
| GRP antibacterial ceiling | Water absorption | 0.3% | Manufacturer test |
| GRP antibacterial ceiling | Antibacterial / anti-mould | 99.5% · class I / class 0 | JIS Z 2801 |
| GRP antibacterial ceiling | Chemical resistance | Resistant to strong acids and alkalis | Manufacturer test |
| Homogeneous PVC vinyl | Fire / wear / slip | B1 · Class T · R9 | Report on request |
| Homogeneous PVC vinyl | Hazardous substances | Free of 19 heavy metals, 60 phthalates | EU 249 screening |
The wall system is modular and prefabricated, fixed dry. No wet trade behind it means no plaster drying time, no sanding dust and no curing window in front of the pressure test.
Services run inside the panel cavity. Sockets, gas outlets, sensors and alarm points are set out on the drawing and cut before the panel leaves the works, so nobody chases a finished face. The same setting-out drawing is what the validation team measures against.
Panels are cut and labelled by room in installation order. On a suite of fifteen rooms and three ceiling heights, that is the difference between a clean install and a team opening crates to see what is inside.
Most cleanroom surface failures are not structural. They are cosmetic in year one and hygienic by year three: a face that chalks under repeated wiping, a gloss that goes patchy where the spray lands, a sealant that softens and holds soil.
The medical clean wall panel is finished low-gloss and diffuse, gloss reduced 42.9% against a standard gloss face. The lower the specular reflection, the less visible the wipe pattern — and the less often a surface is replaced for looking dirty rather than being dirty.
The glass-fibre resin panel is specified where the chemistry is the aggressive part: disinfectant-resistant, stain-resistant, Class A non-combustible. In wash-down and sterile service areas it is usually the wall, with GRP overhead at 0.3% water absorption.
Floors follow the same logic. Homogeneous PVC vinyl is Class T for wear, R9 slip, B1 fire, and free of the 19 heavy metals and 60 phthalate plasticisers screened under EU 249. No waxing, so one fewer chemical in the room.
We can specify the envelope that supports it: non-shedding faces, sealed joints, coved bases, a demountable ceiling for filter access. The class is then proven by particle counting to ISO 14644-1 — the envelope is one variable among several, and we say so.
Send the list. Glass-fibre resin is disinfectant- and stain-resistant; GRP ceiling panels resist strong acids and alkalis at 0.3% water absorption. Where a peracetic or chlorine-based regime runs at high frequency, we test against the actual product rather than answer from a datasheet.
Quoted per project. Panel mix, room count and service penetrations move both figures, so they are confirmed in writing with the quotation.
A panel schedule with joint details and the report behind each surface claim.