Your selection
Micro Duct Wrap FL 16 kg/m³ · 25 mm · 1.22 × 30.5 m
- Thickness (mm)
- 25
- Density (kg/m³)
- 16
- Width (mm)
- 1220
- Length (mm)
- 30500
- R (m²·K/W)
- 0.658
Micro Duct Wrap FL duct insulation
Glass-wool roll with reinforced foil on one side for wrapping air-conditioning ducts — keeps duct air temperature and controls condensation on cold ducts.
- Thickness
- 25–50 mm
- Density
- 16–48 kg/m³
- Thermal conductivity (λ)
- 0.038 / 0.035 / 0.033 / 0.032 W/m·K 16 / 24 / 32 / 48 kg/m³ · the 2023 brochure (p.4) prints the same figures at 24 °C mean · ASTM C518
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Micro Duct Wrap FL 16 kg/m³ · 50 mm · 1.22 × 15.25 m
- Thickness (mm)
- 50
- Density (kg/m³)
- 16
- Width (mm)
- 1220
- Length (mm)
- 15250
- R (m²·K/W)
- 1.316
Your selection
Micro Duct Wrap FL 24 kg/m³ · 25 mm · 1.22 × 30.5 m
- Thickness (mm)
- 25
- Density (kg/m³)
- 24
- Width (mm)
- 1220
- Length (mm)
- 30500
- R (m²·K/W)
- 0.714
Your selection
Micro Duct Wrap FL 24 kg/m³ · 38 mm · 1.22 × 15.25 m
- Thickness (mm)
- 38
- Density (kg/m³)
- 24
- Width (mm)
- 1220
- Length (mm)
- 15250
- R (m²·K/W)
- 1.086
Your selection
Micro Duct Wrap FL 24 kg/m³ · 50 mm · 1.22 × 15.25 m
- Thickness (mm)
- 50
- Density (kg/m³)
- 24
- Width (mm)
- 1220
- Length (mm)
- 15250
- R (m²·K/W)
- 1.429
Your selection
Micro Duct Wrap FL 32 kg/m³ · 25 mm · 1.22 × 15.25 m
- Thickness (mm)
- 25
- Density (kg/m³)
- 32
- Width (mm)
- 1220
- Length (mm)
- 15250
- R (m²·K/W)
- 0.758
Your selection
Micro Duct Wrap FL 32 kg/m³ · 50 mm · 1.22 × 15.25 m
- Thickness (mm)
- 50
- Density (kg/m³)
- 32
- Width (mm)
- 1220
- Length (mm)
- 15250
- R (m²·K/W)
- 1.515
Your selection
Micro Duct Wrap FL 48 kg/m³ · 25 mm · 1.22 × 7.5 m
- Thickness (mm)
- 25
- Density (kg/m³)
- 48
- Width (mm)
- 1220
- Length (mm)
- 7500
- R (m²·K/W)
- 0.781
Your selection
Micro Duct Wrap FL 48 kg/m³ · 50 mm · 1.22 × 7.5 m
- Thickness (mm)
- 50
- Density (kg/m³)
- 48
- Width (mm)
- 1220
- Length (mm)
- 7500
- R (m²·K/W)
- 1.563
See all models and sizesManufacturer documentsTechnical specifications
Product details
Glass wool, 3-way reinforced aluminium foil on one side
- Thickness
- 25–50 mm
- Density
- 16–48 kg/m³
- Thermal conductivity (λ)
- 0.038 / 0.035 / 0.033 / 0.032 W/m·K 16 / 24 / 32 / 48 kg/m³ · the 2023 brochure (p.4) prints the same figures at 24 °C mean · ASTM C518
What is it?
Micro Duct Wrap FL from Microfiber is a glass-wool roll for wrapping cold and hot air ducts. It is factory-faced with the 5-layer FL facing: kraft paper, polymer adhesive, 3-way glass-fibre reinforcement, polymer adhesive and aluminium foil. For buildings, offices, factories and homes.
What is it made of?
Glass wool (fibreglass) · Facing: Reinforced aluminium foil, one side (FL, 5 layers) · Roll
Which sizes are available?
Thickness 25–50 mm · 16–48 kg/m³ — Choose a size
Where does the data come from?
Micro Duct Wrap datasheet (MI 04/12)
Technical data from the manufacturer's documents Microfiber · Checked 12 Oct 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) | 0.038 / 0.035 / 0.033 / 0.032 W/m·K | 16 / 24 / 32 / 48 kg/m³ · the 2023 brochure (p.4) prints the same figures at 24 °C mean · ASTM C518 | Micro Duct Wrap datasheet (MI 04/12), p. 1 |
| Facing | FL, 5 layers: kraft paper / polymer adhesive / 3-way glass-fibre reinforcement / polymer adhesive / aluminium foil | — | Micro Duct Wrap datasheet (MI 04/12), p. 1 |
| Standards the maker names for the facing | ASTM E84 · BS 476 Class O | — | Micro Duct Wrap datasheet (MI 04/12), p. 1 |
| Standards / certification | TIS 486, 487 · ASTM · NFPA 90A · Australian Standards | — | Micro Duct Wrap datasheet (MI 04/12), p. 1 |
Models and sizes available
| Model | Thickness (mm) | Density (kg/m³) | Width (mm) | Length (mm) | R (m²·K/W) |
|---|---|---|---|---|---|
| 16 × 25 | 25 | 16 | 1220 | 30500 | 0.658 |
| 16 × 50 | 50 | 16 | 1220 | 15250 | 1.316 |
| 24 × 25 | 25 | 24 | 1220 | 30500 | 0.714 |
| 24 × 38 | 38 | 24 | 1220 | 15250 | 1.086 |
| 24 × 50 | 50 | 24 | 1220 | 15250 | 1.429 |
| 32 × 25 | 25 | 32 | 1220 | 15250 | 0.758 |
| 32 × 50 | 50 | 32 | 1220 | 15250 | 1.515 |
| 48 × 25 | 25 | 48 | 1220 | 7500 | 0.781 |
| 48 × 50 | 50 | 48 | 1220 | 7500 | 1.563 |
Pack quantities and prices — ask us on LINE
Applications
Highlights
- Reinforced foil facing on one side
- Helps control condensation on cold ducts
- Several densities and thicknesses
Manufacturer documents
Micro Duct Wrap datasheet (MI 04/12)PDF · Microfiber Industries · TH
Micro Duct brochure (EX-BR-004, 2023)Reference document · ask us on LINE for the file
Related products
Alternatives
Duct and HVAC insulation · Glass wool
Microfiber Micro Duct Wrap FRK
- Thickness
- 25–50 mm
- Density
- 16–32 kg/m³
- Thermal conductivity (λ)
- 0.033–0.038 W/m·K
Duct and HVAC insulation · Glass wool
Duct Excel ISODEC
- Diameter
- 76–508 mm
- Density
- 16–48 kg/m³
- Service temp.
- -30 – 140 °C
Used together
Installation accessories · Tape
3T INSU-TAPE Aluminium Tape
- Width
- 50 / 63 mm
- Length
- 45 m
- Service temp.
- -20 – 120 °C
Installation accessories · Adhesive
3T INSU-BOND FiberTight
- Service temp.
- -15 – 90 °C
- Coverage
- 7.5 m²/kg
- Pack
- 10 kg
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