Kingspan Pipe Insulation - Kooltherm Foil Faced Phenolic Pipe Lagging

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product brand
Brand: Kingspan
Country of Manufacture: United Kingdom
In Stock
Product Code: KSKPP
Est. Delivery: 2-3 Working Days
Shipping cost displayed in basket
£4.29 (ex VAT)
£5.15 (incl VAT)
Gary Jordan

Kooltherm pipe insulation sections have been developed to give optimum performance in terms of insulation efficiency, compressive strength, fire resistance, and most importantly, cost. It gives excellent value for money.

Kingspan pipe insulation is one of the most popular pipe lagging materials on the market alongside glasswool and rockwool insulation. However, compared to these two, phenolic insulation has a vastly superior lower thermal conductivity. It will keep pipes warm or cold better than the vast majority of insulation materials in existence.

This characteristic allows for much thinner pipe insulation thicknesses than other materials would allow, which in turn means less space required within boxing-ins, ceiling voids and other areas where space is at a premium.

It's only really bested by Aerogel pipe insulation, which is not something that is widely available due to its cost and difficulty to install. Therefore it could be said that Kingspan pipe insulation is the best pipe lagging if judged by its ability to thermally insulate pipework alone. 

As shown in the graphic below it allows for much thinner wall thicknesses than all the other insulation materials shown.

It is easy to install and works well on all kinds of pipework across project types.

Product Specifications:

  • Length: 1m long.
  • Insulation material: Foil-faced phenolic foam.
  • They are supplied in thicknesses of 15-50mm with a range of inner diameters of 15-168mm 

Key Features & Benefits:

Thermal Performance:

  • Kingspan Kooltherm Pipe Insulation is the most thermally efficient insulation material commonly used for insulating pipes.
  • Thermal conductivity phenolic pipe lagging is as low as 0.025 W/m·K (at 10°C mean in accordance with EN14314) 
  • Low thermal conductivity allows phenolic foam pipe insulation to achieve higher standards of thermal efficiency, fire resistance and compressive strength than most other insulation materials. 

Fire Performance:

Kingspan Kootherm pipe Insulation has excellent fire resistance as detailed below.

  • When exposed to fire, the outer surface develops a thick carbonaceous layer that limits heat generation and retards further flame spread. 
  • Foam pipe insulation is provided with a densely cross-linked structure that makes them difficult to ignite.
  • Fire rating: BL,s1,d0 means the product only adds a small amount to fire, produces very little smoke, and does not form blazing droplets.

Moisture Resistance:

Kingspan Kooltherm pipe insulation offers excellent moisture resistance:

  • It is designed with a closed-cell structure
  • It offers high resistance to moisture ingress and permeation which protects pipes from moisture issues such as corrosion and adverse reactions.
  • Kooltherm sections have a high-performing outer foil face vapour barrier which prevents moisture from reaching the phenolic material within. 
  • It's this dual action, foil face vapour retarder and closed cell structure that makes Kooltherm pipe insulation when installed properly an excellent selection for pipework at risk from condensation and/or corrosion issues.


  • Kooltherm Phenolic is CFC/HCFC-free.
  • It has a low Ozone Depletion Potential (ODP and low Global Warming Potential (GWP).
  • Kooltherm holds the highest possible BRE Green Guide rating of A+ and is manufactured to a BS EN ISO 14001: 2004 scheme, qualifying for the Responsible Sourcing credit.


  • Kingspan pipe insulation can be used to insulate all types of pipework including mild steel, stainless steel, carbon steel, copper, multiplex and plastic pipework.
  • Kooltherm is ideal to insulate pipework in HVAC applications or building services. They are used in all types of building work - residential, commercial or industrial. 
  • For more examples of how Kooltherm pipe insulation is used, please visit Kingspans website here


  • All foam pipe sections of diameter above 160mm are considered non-standard sizes and are available only in box quantities. Price available on request.
  • Pipe lagging above 25mm thickness (i.e. pipe thicknesses- 30mm, 35mm, 40mm and 50mm) are not off the shelf and are ordered in items which will have a lead time of approx 7 - 14 days (Could take longer depending on Kingspans ability to manufacture required sizes at the time)

Length 1m lengths
Thickness 15mm, 20mm, 25mm, 30mm, 35mm 40mm and 50mm
Colour Grey
Material Phenolic foam 
Facings Foil-faced phenolic foam insulation
Used For Insulating mild steel, stainless steel, carbon steel, copper and plastic pipework
Thermal Conductivity 0.025 W/m·K 
BRE Green Guide A+ 
Operating Temperature 110°C to -50°C
Fire rating BL,s1,d0 
Compressive Strength ≥ 150 kPa at +23°C
Indoor Air Quality Eurofins Indoor Air Comfort Gold


Phenolic Pipe Insulation

Buy Insulation Online is the best place to buy Phenolic Pipe Insulation in the UK. We provide a wide range of products that are suited to any need and budget, and our team of experts are on hand to advise you on the best insulation for your home or business. We deliver across the country, and our products are backed by a 100% satisfaction guarantee. So if you're looking for high quality, affordable insulation, then look no further than Buy Insulation Online.

Average Customer Rating
Overall 5.0

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