International Intertherm 228HS
  • International Intertherm 228HS

International Intertherm 228HS


International Intertherm 228HS is a highly crosslinked, two component, high build epoxy phenolic coating suitable for exposure in a wide range of highly corrosive environments, including insulated and uninsulated carbon and stainless steel for use on the exterior of pipework, process vessels etc., operating at temperatures up to 230°C (446°F).

VAT excluded

£414.67 Tax incl.


International Intertherm 228HS is a highly crosslinked, two component, high build epoxy phenolic coating which combines properties of corrosion and chemical resistance when used in high temperature service. International Intertherm 228HS is a next generation epoxy phenolic coating based upon novolac resin technology.

Intended Uses

  • International Intertherm 228HS has been specifically designed to provide a corrosion resistant barrier when used to protect steelwork beneath thermal insulation in areas subjected to wet and dry cycling.
  • Suitable for exposure in a wide range of highly corrosive environments, including insulated and uninsulated carbon and stainless steel for use on the exterior of pipework, process vessels etc., operating at temperatures up to 230°C (446°F).
  • International Intertherm 228HS has excellent resistance to "thermal shock" experienced during rapid temperature cycling.


  • White is nearest to RAL 9010
  • Grey is nearest to RAL 7004
  • Red Oxide is nearest to BS 4800 04 C 39

It is your responsibility to read the Product Data Sheets (available below) before you place an order and prior to application of the product. The content of this website is our best recommendation and is not advice. Coverage rates quoted are approximate, you agree that coverage depends on the condition of the substrate, surface absorption, texture and application method. We ALWAYS recommend a trial area is coated to ensure the product meets your requirements before use.

Product Details

Data sheet

Brush, Roller, Spray
4.67m² per litre
Touch Dry
5 Hours

Customer agrees that before placing an Order, Customer has read and understood the most up to date Product Data Sheet for the Product. Where we have access to the Product Data Sheet from the manufacturer, we will either provide a copy on request, or include a link to the Product Data Sheet available on the manufacturer’s website. Customer further agrees that we have no liability for any errors or omissions contained within the Product Data Sheets. For more information, please see our Terms & Conditions of Sale.

questions Geoff Gordon on 26/06/2019

What is the maximum temperature of the substrate that 228 can be applied by brush/roller?


When applied by brush/roller then maximum surface temperature should be up to 70-80°C. Above that temperature only airless spray is recommended and we have a seperate document available to explain this process if required.

questions Alan Farquhar on 21/02/2018

are the white and grey Intertherm 228 a gloss finish? also what would you recommend as an over coat for Intertherm 228 red oxide to give a gloss finish


Intertherm 228HS is a two component high build epoxy phenolic coating leaving an eggshell finish suitable for use up to 230°C. If a cosmetic finish is required the following top coats can be used:

Maximum overcoating time should be kept to minimum (1-2 days) and any additional abrasion of the second coat of Intertherm 228HS will create a better bond between coatings.

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