Your selection
SCG PCI unfaced · 25 mm
- Thickness (mm)
- 25
- Density (kg/m³)
- 64
- Length (mm)
- 1000
- Pipe size
- NPS 1/2" – 18"
- Iron pipe size (inch)
SCG PCI / PCIF glass-wool pipe section for iron pipe
Pre-formed glass-wool section for steel pipes — hot, cold and exposed piping operating at 10–540 °C.
- Thickness
- 25–50 mm
- Density
- 64 kg/m³
- Service temperature range
- 10 – 540 °C
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Iron pipes are named by a nominal size in inches, not the measured size: a 1/2 in pipe measures about 21 mm across the outside.
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SCG PCI unfaced · 38 mm
- Thickness (mm)
- 38
- Density (kg/m³)
- 64
- Length (mm)
- 1000
- Pipe size
- NPS 1/2" – 18"
- Iron pipe size (inch)
Your selection
SCG PCI unfaced · 50 mm
- Thickness (mm)
- 50
- Density (kg/m³)
- 64
- Length (mm)
- 1000
- Pipe size
- NPS 1/2" – 18"
- Iron pipe size (inch)
Your selection
SCG PCIF aluminium-foil faced · 25 mm
- Thickness (mm)
- 25
- Density (kg/m³)
- 64
- Length (mm)
- 1000
- Pipe size
- NPS 1/2" – 18"
- Iron pipe size (inch)
Your selection
SCG PCIF aluminium-foil faced · 38 mm
- Thickness (mm)
- 38
- Density (kg/m³)
- 64
- Length (mm)
- 1000
- Pipe size
- NPS 1/2" – 18"
- Iron pipe size (inch)
Your selection
SCG PCIF aluminium-foil faced · 50 mm
- Thickness (mm)
- 50
- Density (kg/m³)
- 64
- Length (mm)
- 1000
- Pipe size
- NPS 1/2" – 18"
- Iron pipe size (inch)
See all models and sizesManufacturer documentsTechnical specifications
Product details
Pre-formed glass-wool section for iron pipe · PCI unfaced · PCIF aluminium-foil faced
- Thickness
- 25–50 mm
- Density
- 64 kg/m³
- Service temperature range
- 10 – 540 °C
- Thermal conductivity (λ)
- 0.032 / 0.039 / 0.046 / 0.063 W/m·K at 24 / 66 / 121 / 204 °C mean (test standard not stated)
What is it?
SCG PCI is a pre-formed glass-wool section for steel pipes operating at 10–540 °C, in commercial buildings, factories, offices, department stores, hospitals, hotels and homes. Density 64 kg/m³; 25, 38 and 50 mm thick; 1 m long; for 1/2" to 18" pipe.
What is it made of?
Glass wool (fibreglass) · Pipe section
Which sizes are available?
Thickness 25–50 mm · 64 kg/m³ — Choose a size
Where does the data come from?
SCG thermal insulation catalogue for air-conditioning and industrial work (pages 13–17: pipe insulation)
Technical data from the manufacturer's documents SCG · Checked 26 Sept 2026
Technical specifications
All values come from the manufacturer's documents, with conditions and test standards. Values the documents do not state are not shown.
| Property | Value | Conditions / standard | Source |
|---|---|---|---|
| Thermal conductivity (λ) | 0.032 / 0.039 / 0.046 / 0.063 W/m·K | at 24 / 66 / 121 / 204 °C mean (test standard not stated) | SCG thermal insulation catalogue for air-conditioning and industrial work (pages 13–17: pipe insulation), p. 16 |
| Service temperature range | 10 – 540 °C | — | SCG thermal insulation catalogue for air-conditioning and industrial work (pages 13–17: pipe insulation), p. 13 |
| Reaction to fire | FS < 25 · SD < 50 | flame spread / smoke developed · ASTM E84 | SCG thermal insulation catalogue for air-conditioning and industrial work (pages 13–17: pipe insulation), p. 16 |
| Moisture sorption | 0.2% by volume | ASTM C1104 | SCG thermal insulation catalogue for air-conditioning and industrial work (pages 13–17: pipe insulation), p. 16 |
Models and sizes available
| Model | Thickness (mm) | Density (kg/m³) | Length (mm) | Pipe size |
|---|---|---|---|---|
| PCI | 25 | 64 | 1000 | NPS 1/2" – 18" |
| PCI | 38 | 64 | 1000 | NPS 1/2" – 18" |
| PCI | 50 | 64 | 1000 | NPS 1/2" – 18" |
| PCIF | 25 | 64 | 1000 | NPS 1/2" – 18" |
| PCIF | 38 | 64 | 1000 | NPS 1/2" – 18" |
| PCIF | 50 | 64 | 1000 | NPS 1/2" – 18" |
Pack quantities and prices — ask us on LINE
Applications
PipesAC, chilled-water, hot-water and steam pipesFactoriesFactory roofs, machine noise and hot pipework
Highlights
- For pipes at 10–540 °C
- Pre-formed for quick installation
- λ published at many mean temperatures
Related products
Alternatives
Industrial and high-temperature insulation · Stone wool
ROCKWOOL ProRox WM
- Max. temp.
- 650–750 °C
- Density
- 80–128 kg/m³
- Thermal conductivity (λ)
- 0.037–0.038 W/m·K (50 °C)
Used together
Installation accessories · Tape
3T INSU-TAPE Aluminium Tape
- Width
- 50 / 63 mm
- Length
- 45 m
- Service temp.
- -20 – 120 °C
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