Component S
Component S for non-structural cavity filling; Component C when the box is converted for cold or food use.
See specificationContainers
Converting containers into insulated spaces
A steel box conducts heat through every rib. Foam goes behind the liner and stops the condensation that ruins stock.
What goes wrong on site
Three failures, in the order they appear
- 01
Condensation on the steel, dripping onto whatever is stored.
- 02
Every millimetre of lining costs floor area you cannot recover.
- 03
The conversion has to happen in days, not weeks.
Why one-component foam, and not something else
Three properties, no chemistry
- Mobility: a can and a gun reach a joint that a panel, a board or a truck cannot.
- Irregular geometry: it expands to the shape of the void, including penetrations.
- Closed cell: air barrier and moisture barrier in one pass, without a second trade.
How it is done, and what to hold
The four numbers this job lives on
| Step | What to hold |
|---|---|
| Surface | Ribs dry and degreased, liner frame set, ventilation planned before the first can. |
| Fill volume | One third of the joint depth. The foam expands to fill; filling it to the top bends frames and wastes material. |
| Passes | Two passes of 30 mm at most. A single thick pass traps heat and collapses in the core. |
| Trim | Cut after the window on the parameter card. Never pull or press uncured foam. |
| Cover | PU is not UV-stable. Any exposed face gets sealant, render or a trim within 48 hours. |
Typical guidance. The parameter card for your grade carries the tolerances your operators work to.
Common failures
Three ways this job goes wrong
- Foaming the whole wall in one pass and trapping heat behind the liner.
- No ventilation during cure in a sealed box — the smell stays for weeks.
- Expecting the foam to be the interior finish; it is not.
What to tell your customer
Three sentences you can copy into a quotation, a WhatsApp message or a site meeting. Your competitors' websites talk about themselves; this block is for you to talk about the job.
„The liner goes on over the foam, so nothing touches the steel.“
„We leave a service void, so wiring still runs after the conversion.“
„Conversion takes days, and the box is usable the same week.“
Send the drawing or the photo — we will reply with the parameters.
Technology brand
Tell us the joint, the substrate and the season
- 1 tonne minimum, five 200 L drums
- SDS, COA and Form E with every shipment
- We reply within 24 hours, Monday to Saturday.