Component A
Component A for steam and chilled lines; Component C where the line is below 60 °C and the budget is fixed.
See specificationPipes and valves
Technical insulation on pipes, valves and tees
Straight runs are the easy part. Valves, flanges and tees are where insulation programmes lose their money — and where a can beats a pre-formed section.
What goes wrong on site
Three failures, in the order they appear
- 01
Pre-formed sections cannot wrap a valve body or a reducing tee.
- 02
Valves must stay serviceable — the insulation has to come off and go back on.
- 03
High-temperature lines pull heat straight into the structure at the supports.
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 | Surface clean and dry, line above the dew point; a release film on valves that must be reopened. |
| 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 a valve shut, then cutting it open with a knife at the next service.
- One thick pass around a tee — the core stays soft for hours.
- Leaving the foam exposed at an outdoor rack; UV destroys it within two seasons.
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.
„Every valve stays removable: we foam around it, not into it.“
„The tee is filled in two passes, so the core is solid, not crusted.“
„Exposed sections get a jacket or a coat — the foam is not the finish.“
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.