K Flex Pipe Insulation - Nitrile Rubber - Armaflex lagging alternative

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product brand
Brand: K Flex
Country of Manufacture: Italy
In Stock
Product Code: KXSS
Est. Delivery: 2-3 Working Days
Shipping cost displayed in basket
£3.99 (ex VAT)
£4.79 (incl VAT)

K-Flex ST self-seal Nitrile Rubber pipe insulation is a low-cost solution to lagging your pipes. Made of nitrile rubber, these pipe insulation sections by K flex help reduce energy costs by preventing heat loss or gain in all types of pipework.

Nitrile rubber foam insulation is flexible and light in weight and the best part is that this pipe lagging comes with self-adhesive strips, which means you can install it yourself even if you are an amateur DIY'er. 

As sometimes Armaflex lagging is used as a synonym for Nitrile rubber insulation as a whole, it is worth pointing out that Kflex is made from the exact same material as Armaflex pipe insulation.

This self-seal, nitrile rubber foam pipe insulation helps to increase the life and performance of pipework by reducing heating requirements and effectively shielding the pipework from corrosion if installed correctly. It is suitable for use in all aspects of residential, commercial and industrial applications.

It can also be used to insulate pipework equipment, tanks and used as valve insulation. K flex pipe insulation gives an energy-saving performance and has an inherent resistance to microbial growth and moulds. Nitrile rubber pipe sections protect the pipes from dirt, rust, condensation, freezing and other issues. 

Product Specifications:

  • Length: 2m
  • Insulation Thickness: 9mm, 13mm, 19mm and 25mm
  • Pipe Diameter: 15mm, 22mm, 28mm, 35mm, 42mm, 48mm, 54mm, 60mm, 67mm, 76mm and 89mm

Key Features:

  • Nitrile rubber pipe insulation from K-Flex provides thermal insulation to HVAC and plumbing applications.
  • Self-adhesive strips ensure fast and easy application on pipework.
  • Closed-cell elastomeric pipe insulation has an in-built water vapour barrier.
  • Comes in 2m length,  instead of the standard 1m length for pipe lagging. Prevents thermal bridging
  • Rubber foam pipe sections ensure substantial energy savings when used on hot water pipes.
  • Their in-built vapour barrier ensures protection against rust, condensation and other issues
  • K-Flex pipe insulation sections have in-built anti-microbial resistance & can be installed even in extremely tight areas.
  • Closed cellular structure in nitrile rubber sections ensures high technical performance.
  • K-Flex pipe insulation section is resistant to moulds, fungi and bacteria.
  • Pipe lagging is light and flexible.


  • Nitrile rubber pipe insulation can be used in HVAC applications for residential, commercial and industrial applications.
  • They are also used in plumbing, tanks, pipe fittings and water ducts.
  • Nitrile rubber pipe insulation is also used in oil & gas industries and other industrial processes.
  • For more examples on how K flex pipe insulation is used please check out Kflex's official website here

Length 2m
Thickness Available 9mm, 13mm, 19mm and 25mm
Insulation Type Self-seal
Material Foamed nitrile rubber
Thermal Conductivity 0.040 W/mK at 40°C.
Service Temperature -50 °C to +110 °C
Fire Classification Class 'O', Euroclass B







Nitrile Rubber Insulation

Buy Insulation Online is one of the best place to come to buy Nitrile Rubber Insulation in the UK. We deliver across the country. Our products are of the highest quality and our prices are unbeatable. We also offer a price match guarantee so that you can be sure you are getting the best deal possible. So why wait? 


Average Customer Rating
Overall 5.0

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