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Elastomeric Rubber ST / SK Tubes

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Elastomeric Rubber ST / SK Tubes

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  • Elastomeric Rubber Pipe ST/SK / Length
  • Elastomeric Rubber Pipe ST/SK / Diameter
  • Elastomeric Rubber Pipe ST/SK / Thickness

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K-FLEX ST/SK TUBES is a cut -to-length self-seal elastomeric insulation. This innovative technology includes adhesive tapes which are quick and easy to use for the installer. This new system has been developed to save on insulation time and reduce the use of other adhesives to improve working conditions at the construction site. Also available as version with overlap-K-FLEX ST/SK with overlap. 

General Information

Elastomeric insulation for all civil industrial applications

High performance for all applications in a temperature rang from -165C TO 110C

Prevents the risk of condensation and improves energy saving

Reaction to fire Euroclass B-s2, d0

Very fine closed cellular structure and high technical performance

Resistant to mould, fungi and bacteria


K-FLEX® products cover a range of temperature for applications including cryogenic plants to chilled

water systems, and from domestic hot water systems to solar thermal plants. Their high resistance to water vapour diffusion is a key feature of all K-FLEX® closed cell elastomeric insulation materials.

Typical applications include

Refrigeration and air-conditioning systems and plumbing.

Industrial, chemical and pharmaceutical plant engineering.

Insulation of pipes, fittings and other equipment.

Insulation of tanks, solar systems.

OEM applications

Property Value Test method 
Temperature range  K-FLEX® ST/SK: from -40°C to +85°C 

EN 14706

EN 14707

 Thicknesses ≤ 25mmThicknesses > 25mm 


Thermal conductivity λ W/(m•K)

-20 °C = 0,031

0 °C = 0,033

+20 °C = 0,035

-20 °C = 0,034

0 °C = 0,036

+20 °C = 0,038

EN 13787

EN ISO 8497

 +40 °C = 0,037+40 °C = 0,040 
Corrosion prevention pH neutral (7±0,5) EN 13468
Permeability µ≥ 10000≥ 7000EN 12086


Fire rating

 K-FLEX® ST Tubes: Euroclass BL-s2, d0 K-FLEX® ST/SK: Euroclass BL-s2, d0 CLASS 0 

EN 13501-1

EN 13501-1

BS 476 Part 6/7

Ecological dataWithout CFCs and HCFCs 
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