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.
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.
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.
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.