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Epoxy Novolac Floor Coatings


Why & Where to Choose an Epoxy Novolac Floor Coating System?

Epoxy Novolac (EPN) coating systems provide significantly higher chemical and thermal resistance properties compared to standard Bisphenol A based systems.

How do epoxy Novolac systems provide enhanced chemical resistance?

They have a higher functionality (average reactive groups per molecule) due to switching from Bisphenol A backbones to epoxy Novolac precursors.

Moreover this formulation provides the higher cross-link density needed for higher chemical resistance and thermal properties.

This includes resistance to concentrated leachate, sulfuric acid (98%), sodium hydroxide (50%) and biocides.

Where would I use an epoxy Novolac floor coating system?

100% solids epoxy Novolac floor coating systems are ideal for harsh chemical and solvent resistant applications.

Likewise, EPN systems are used in secondary containment, solvent storage, pump pads, trenches and other high exposure areas.

Epoxy Novolac Floor Coatings

Epoxy Novolac (EPN) flooring systems are to be used in areas subject to aggressive chemical processes such as wastewater treatment plants.

The healthcare and electronics industries, as well as chemical and waste treatment plants, power generation facilities and textile mills are all examples of locations requiring an extra level of performance from floor surfaces.

Installation of EPN coatings includes flooring, cove bases, containment walls, room walls, sumps, pits, curbs, foundation pads and other areas needing high chemical resistance.

Case Study: Cache Creek Landfill Site, BC, Canada

8,500 square feet of high performance epoxy Novolac resin flooring were installed at the Cache Creek landfill site in the rural heartland of British Columbia, Canada.

Cache Creek landfill site in BC, Canada installed Flowcoat SKN – A 100% solids epoxy Novolac system

For over 20 years the Cache Creek landfill site served as a large transfer station for the City of Vancouver. However following the expiration of the previous operator’s contract closed in December 2016.

The plant treats groundwater effluent as part of the on-going post closure care and maintenance process. This facilitates the discharge of treated water to a sanitary sewer or water body.

Why choose epoxy Novolac over standard epoxy resin flooring?

This highly resistant material was specified for use in the on-site wastewater treatment plant. This collects and treats effluent generated through precipitation entering the landfill as well as moisture secreted from decomposing waste material.

Cache Creek landfill

Aggressive chemical processes provide challenges selecting a protective floor coating

However, the aggressive nature of chemicals used in daily processes proved challenging when selecting a protective floor coating.

Daily operations expose the floor to spillage of concentrated leachate, sulfuric acid (98%), sodium hydroxide (50%) and biocides.

Even just intermittent spillage of the highly concentrated chemicals used on site could lead to severe corrosion of the surface over time

Concentrated sulfuric acid is extremely corrosive. This dangerous chemical is capable of corroding skin, paper, metals, and even stone in some cases.

As such, only epoxy Novolac offered the chemical resistance profile required to hold up to such punishing requirements.

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Rebekah Jones

Rebekah Jones is the Marketing Communications Director at Flowcrete Group Ltd. In this role Rebekah sets out the global communications strategy for a Group that encompasses several of the world's leading construction chemical brands.

7 thoughts on “Why & Where to Choose an Epoxy Novolac Floor Coating System?”

  1. Gary johnson says:

    Great article
    Many thanks
    Gary Johnson
    Flowcrete South Africa

  2. DeepaK Sinha says:

    Plz provide details on HNO3, HCL etc, as most industries are using the same as cleaning agent. HNO3 is NSF certified for food industries .

    1. Rebekah Jones says:

      Hi Deepak,

      Many thanks for your enquiry.

      As you know, depending on the concentrations, both Nitric Acid and Hydrochloric Acid can be very aggressive, particularly Nitric. We have experienced many problems with staining on chemical store room floors, where relatively strong Nitric has been spilt. Epoxy Novalac flooring systems are generally the best in resisting this staining.

      This is not often an issue in the process areas of food factories, because in these areas, the chemicals are very dilute and washed away to the drain.

      Should you have more specific requirements, or a project in mind that you would like to discuss with a technical representative, please don’t hesitate to contact us at

      Many thanks,


  3. Nice article. This article can help many industries by choosing Epoxy Novolac Coating as it is challenging for the engineers to select a safe ,quality based durable floor coating as it is going to be used for a longer time.

    1. Rebekah Jones says:

      Thanks Jasmine for your comments.
      We are pleased that you enjoyed the article!
      Best wishes,

  4. Ihab Ahmed Mohamed says:

    Dear sir,
    We are required to isolating concrete floors for sinks and sewers for a water treatment plant, which is exposed to aggressive chemicals (98% sulphuric acid and 50% sodium hydroxide, that are diluted with water to reach 5%). So we are need your advice to use epoxy novalac flooring system to resisting this situation or not.

    1. Rebekah Jones says:

      Good afternoon,
      Thank you for your comments.
      If you want to drop me a private email with your location and contact details, I will be sure to forward your details to your local representative for follow-up on your specific project.
      Best wishes,

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