Buyers sometimes ask for stainless steel cleanroom windows, and the reason is understandable: stainless steel is associated with cleanability and corrosion resistance, and those are real cleanroom concerns. This guide explains why that request needs a careful answer on this site. The stated window frame for the double glazed cleanroom window is purification-grade aluminium alloy, and that is the frame this site specifies. A stainless steel window frame is not stated as a window specification in the product description, so it is treated here as a confirmation item, not as a standard variant.
That treatment is not a judgement about stainless steel as a material. Stainless steel is stated on this site in two other places, and confusing those places with windows is exactly the error this guide prevents. Stainless steel board is a panel option for full steel doors, and 304 and 316 stainless steel anti-corrosion boards are face options for FFU blind ceiling panels. Neither fact makes a stainless steel window frame a stated window specification, because a door panel and a ceiling face are not a window frame. A schedule that writes stainless steel against a window line without confirmation would borrow a material fact from the wrong component family.
A buyer who needs a stainless steel window frame should therefore send the requirement as an explicit inquiry item, with the reason for the material choice, the window opening sizes, the wall construction, and the finish requirement. The supplier can then confirm whether a stainless steel frame can be supplied for those openings, whether any part of the stated window construction changes with the frame material, and what the beading, desiccant, and glass arrangement will be in that frame. Until that confirmation arrives, the safe specification is the stated window: purification-grade aluminium alloy frame, PVC beading with desiccant beneath it to resist fogging, and toughened white glass.
The same discipline applies to any window material request outside the stated construction. Name the material, name the reason, list the openings, and ask for confirmation, rather than writing the material into the order as if it were standard. That way the window schedule stays checkable, and the material decision is made on a confirmed frame rather than on an assumed one.
- Stated frame: purification-grade aluminium alloy.
- Not stated: stainless steel window frame; subject to inquiry confirmation.
- Do not borrow: stainless door panels and stainless ceiling faces are not window frames.
- Send with the inquiry: material reason, opening sizes, wall construction, finish requirement.
- Safe specification until confirmed: aluminium frame, PVC beading with desiccant, toughened glass.
- Related pages: cleanroom windows, double glazed windows, window details guide.
Stainless window frame inquiry list
| Inquiry line | What to send |
|---|---|
| Material reason | Why stainless steel is required for these windows |
| Openings | Window opening sizes and walls |
| Finish | Finish requirement for the frame |
| Confirmation | Frame, beading, desiccant, and glass as confirmed |
How to read the specifications on this page
Dimensions and construction details on this page follow the Lairun product description for the component family shown. Door opening sizes quoted on this site are brochure dimensions: they describe the opening sizes listed in the product brochure, and any non-standard size should be confirmed in the inquiry. Aluminium profile codes are listed by code only; no profile dimension is stated where the product description does not give one. Items that the product description does not specify are marked for inquiry confirmation rather than described as available options, so buyers are not led to assume a mechanism, a load figure, or a material variant that has not been evidenced.
What to put in your inquiry
Send the opening sizes you need, the leaf arrangement, the surface finish you prefer, and the ceiling layout where the components will be installed. State the quantities per size, the site conditions, and the delivery location so the component list can be checked line by line. Where this page lists an item as subject to confirmation, include that item explicitly in your message so it is answered before any order is placed. Please confirm the minimum order quantity and the lead time in your inquiry, because this site does not publish those figures. Certificates are available upon request; please ask for the documents you need and state which project they are for.