K-Flex K-Rock Foiled Mineral Wool Pipe Insulation - 1m
20mm / 15mm
£4.87
inc VAT
£4.06
ex VAT
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K-Flex K-Rock Foiled Mineral Wool Pipe Insulation - 1m
20015LR1080BARP
£4.87
inc VAT
£4.06
ex VAT
In stock – ready to dispatch
Key specifications
- Fire rating
- Euroclass A2L-s1,d0 (EN 13501-1)
- Service temperature
- Maximum +600°C
- Thermal conductivity
- λ ≤ 0.034 W/(m·K) at 0°C; ≤ 0.038 at +40°C; 0.039 at +50°C; 0.046 at +100°C; 0.056 at +150°C; 0.067 at +200°C; 0.081 at +250°C; 0.096 at +300°C; 0.135 at +400°C
- Standard
- EN 14303:2009+A1:2013
Source: manufacturer's technical datasheet · View datasheet
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How to measure?
Measure the Outside Diameter (OD)
Pipe insulation sizes refer to the outside diameter of the pipe — not the bore (internal diameter).
Wrap a tape measure around the pipe, divide by π (3.14) to get the OD. Or use calipers across the outside of the pipe directly.
Pipe insulation sizes refer to the outside diameter of the pipe — not the bore (internal diameter).
|←— OD —→|Wrap a tape measure around the pipe, divide by π (3.14) to get the OD. Or use calipers across the outside of the pipe directly.
Stock and lead time: We hold selected K-FLEX K-ROCK ALU sizes in stock. Other sizes are available to order and may require additional supplier lead time before dispatch. We will confirm the expected dispatch date after your order is received.
K-FLEX K-ROCK ALU Foiled Mineral Wool Pipe Insulation – 1m
K-FLEX K-ROCK ALU is a pre-formed mineral wool pipe section faced with reinforced aluminium foil. It is designed for thermal and acoustic insulation of hot and cold pipework in building-services and industrial applications, particularly where a mineral-wool system is preferred for higher service temperatures.
Each section is 1 metre long, with a longitudinal slit and opposing internal half-cut to make fitting around pipework easier. This listing includes 20mm, 25mm, 30mm, 40mm and 50mm insulation thicknesses across the available pipe diameters.
Key Features
- Maximum service temperature: up to +600°C for K-ROCK ALU pipe sections
- Thermal conductivity: λ ≤ 0.034 W/(m·K) at 0°C, ≤ 0.038 W/(m·K) at 40°C, 0.039 W/(m·K) at 50°C, 0.056 W/(m·K) at 150°C and 0.096 W/(m·K) at 300°C
- Reaction to fire: Euroclass A2L-s1,d0 for the aluminium-faced K-ROCK ALU pipe section
- Water absorption: Wp ≤ 1.0 kg/m²
- Reinforced aluminium facing: provides a neat finish and high resistance to water-vapour passage when joints are correctly sealed
- Silicone-free manufacture: produced without added silicone oil
- Standard: mineral-wool pipe sections manufactured to EN 14303
Applications
- Heating and hot-water pipework
- Steam and high-temperature services
- HVAC and building-services pipework
- Industrial process pipework
- Thermal and acoustic insulation of hot or cold fluid-carrying pipes
Important Fire Classification Note
The unfaced K-ROCK pipe section is classified Euroclass A1L. This product is the foil-faced K-ROCK ALU version, for which K-FLEX publishes a reaction-to-fire classification of A2L-s1,d0. It should therefore not be described as A1 non-combustible.
Installation
Open the longitudinal slit, fit the section closely around the pipe and secure the aluminium-facing overlap. Seal longitudinal and circumferential joints with a suitable aluminium foil tape or other fixing method specified by K-FLEX. K-FLEX advises that the product should not be stored outdoors; exposed installations require an appropriate weather-protection system.
Specification Guidance
Where insulation thickness is being selected to meet BS 5422:2023, Building Regulations or a project-specific heat-loss requirement, use the calculated specification thickness rather than assuming that every available size automatically complies.
Complete Your Installation
Use a suitable self-adhesive aluminium foil tape to seal the foil-facing joints and maintain a continuous finish.
Need Technical Information?
⬇ K-Flex DocumentationYou may also like
Complete Your Installation
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