Industrial floors do more than provide a surface for workers, machinery and production equipment. In chemically demanding facilities, they can also act as a protective barrier between aggressive liquids and the concrete or steel beneath. When acids, cleaning chemicals, contaminated water and process residues repeatedly contact an inadequately protected floor, deterioration can develop below the visible surface.
Australian processing facilities therefore need flooring systems selected for their real service environment—not simply for colour, gloss or general wear. Acid-resistant industrial flooring must be assessed against the exact chemicals used on site, their concentrations and temperatures, how long they remain on the surface and whether exposure occurs as occasional splashes, repeated spills or immersion.
Novolox XT600 is a two-component, solvent-free epoxy novolac developed for concrete and steel surfaces requiring upgraded chemical resistance. Liquimix identifies it for chemically exposed floors and walls, secondary containment, chemical bunding, wastewater areas, sewage contact, and pulp and paper operations.
This guide explains why acidic processing environments can damage industrial floors, how Novolox XT600 provides protection and what Australian facility managers, engineers, specifiers and applicators should consider before installation.
Concrete appears solid, but it contains pores and capillaries through which liquids can move. Acids can react with susceptible components in concrete, weakening or eroding the surface over time. The result may include roughening, softening, pitting, dusting, loss of section or exposure of aggregate.
Once a floor begins to deteriorate, it can become harder to clean and maintain. Damaged areas can retain liquids, while cracks and surface defects may allow contaminants to penetrate further into the slab. If moisture and chemicals reach reinforcement or embedded metalwork, corrosion risks may also increase.
Steel floors, tanks, supports and other components face a different problem. Moisture and corrosive chemicals can attack unprotected steel, causing rust and loss of protective integrity. A properly selected coating helps isolate the steel from its operating environment, although preparation and detailing are critical.
The phrase “acid exposure” covers a wide range of conditions. A dilute acidic solution washed away quickly is not equivalent to a concentrated spill left overnight. Likewise, a chemical at ambient temperature may behave differently when hot.
Coating selection should consider:
This is why a product should never be specified only because it is described as “chemical resistant.” Compatibility must be checked for the actual service conditions.
Acid exposure is not limited to chemical factories. Many manufacturing, food, water and infrastructure operations use acidic substances or generate acidic residues as part of production, cleaning or waste handling.
Food production facilities may encounter organic acids, acidic ingredients, fermentation by-products and cleaning solutions. Dairy, meat, beverage and other manufacturing areas can also experience frequent wash-down, grease, oils, water and sanitation chemicals.
Not every food-processing room requires the same system. Chemical dosing rooms, bunds and wastewater zones may face more severe exposure than dry packaging areas. Floors in applicable food-handling and cleaning areas must also support effective cleaning and remain appropriate for their intended use.
Dairy plants may encounter milk residues, organic acids, cleaning chemicals and repeated wetting. Meat processing and abattoir floors may be exposed to blood, fats, salts, sanitation products and process water. These conditions combine chemical attack with moisture, contamination and traffic.
Novolox XT600 may be assessed for suitable processing floors, lower walls, plinths, wash areas, chemical bunds and effluent zones. However, direct food-contact approval, hygiene certification and slip performance should not be assumed without supporting documentation and a complete project specification.
Chemical plants may have production floors, transfer stations, dosing areas, loading zones, tank pads and chemical stores where spills are possible. Secondary containment and bunds are designed to restrict the movement of escaped liquids, making the integrity of the protective lining especially important.
The coating system must be matched to every chemical stored or processed in the area, including mixtures and possible reaction products.
Pulp and paper operations use water and process chemicals across production, cleaning and treatment areas. Floors and walls may be exposed to demanding chemical and moisture conditions. Liquimix lists pulp and paper as an intended use for Novolox XT600, subject to project-specific confirmation.
Wastewater areas may contain fluctuating chemistry, moisture, contaminants and corrosive conditions. Novolox XT600 is listed for wastewater areas and sewage contact, but its current technical information states that it is not recommended for continuous chemical immersion. Constant immersion requires a specifically approved lining system.
Maintenance areas, battery zones, chemical stores, process plants and selected mining infrastructure may encounter acids, alkalis, oils, salts and fuels. Mechanical loading can also be high. In these environments, the coating system should address abrasion, impact and traffic as well as chemical resistance.
Novolox XT600 is a 100% volume-solids epoxy novolac coating for properly prepared concrete and steel. Epoxy novolac chemistry is used where a higher degree of chemical resistance is required than may be available from a general-purpose decorative or industrial epoxy.
According to Liquimix’s current product information, Novolox XT600 offers:
The listed typical dry film thickness is 125–300 microns. Theoretical coverage is approximately five square metres per litre at 200 microns dry film thickness. Actual usage will vary with surface profile, porosity, losses and application conditions.
| Volume Solids | 100% |
| Theoretical Coverage | 5m²/L@200MicronsDFT |
| Finish | Pigmented |
| Colour | Standard & Custom colour change |
| Gloss | Semi-Gloss |
| Mixing Ratio | 2:1 by volume |
| PotLife | 45 min @25°C |
| Typical Thickness | 125-300 Microns DFT (125-300 Microns WFT) |
| Cleaner | LM1 Thinner |
| Flash Point | 104°C |
When correctly applied and cured, Novolox XT600 forms a continuous coating over the substrate. This barrier helps reduce direct contact between concrete or steel and chemically aggressive liquids.
Protection depends on continuity. Pinholes, missed areas, damage, poorly treated joints and defective terminations can provide pathways through the system. Application quality and inspection are therefore as important as the product selection.
Liquimix lists generic resistance examples including hydrochloric acid, sulphuric acid, sodium hydroxide, ammonia, salt solutions, vegetable oils, water and selected solvents and fuels.
This list demonstrates the broad types of exposure considered during product development, but it is not universal approval. The resistance of an epoxy coating can change with concentration, temperature, dwell time and chemical combinations. Obtain written project advice before specifying the coating.
Untreated or damaged concrete can absorb liquids. By creating a protective surface, Novolox XT600 helps limit the entry of water and compatible chemicals into sound, correctly prepared concrete.
A coating cannot stabilise moving cracks, repair unsound concrete or stop hydrostatic pressure by itself. Cracks, joints, voids and damaged areas should be assessed and repaired using suitable methods before coating.
Novolox XT600 is designed for steel as well as concrete. When steel is abrasively blasted and prepared to the specified standard, the coating can provide a barrier against water and compatible chemical contaminants.
Welds, edges, bolts, penetrations and difficult geometries need particular attention because insufficient coating thickness at these locations can reduce protection.
A continuous coating can make a correctly designed industrial floor easier to clean than porous, eroded concrete. This can benefit wash-down and processing areas where residues must be removed regularly.
Cleanability also depends on the chosen surface texture, drainage, coving and joint design. A heavily textured non-slip surface may provide greater traction but require more intensive cleaning.
General-purpose epoxy coatings can be suitable for warehouses, workshops and many commercial floors. However, repeated acidic exposure may require a specialised epoxy novolac.
| Consideration | General-purpose epoxy | Epoxy novolac such as Novolox XT600 |
|---|---|---|
| Main use | General industrial protection | Upgraded chemical protection |
| Acid exposure | Resistance depends on the formulation | Designed for higher chemical resistance |
| Selection method | Based on traffic, appearance and routine exposure | Based on the chemical, concentration, temperature and contact time |
| Typical project areas | Warehouses, workshops and commercial floors | Processing areas, bunds and chemically exposed surfaces |
| Specification | A standard system may be adequate | Requires detailed chemical and substrate assessment |
This comparison provides general guidance only. The performance of any coating depends on its formulation, substrate preparation and complete flooring system. Explore Liquimix’s chemically resistant epoxy flooring solutions and seek technical advice before selecting a system for your facility.
List every acid, alkali, cleaner, solvent, oil and process liquid that may contact the floor. Include concentrations, temperatures and expected contact times. Consider routine operations, maintenance, cleaning and foreseeable spills.
Occasional splashes, repeated wash-down, pooled liquids and continuous immersion are different service conditions. The current Novolox XT600 TDS states that the product is not recommended for continuous chemical immersion.
Forklifts, trolleys, dropped tools, vibrating machinery and dragging pallets can damage a coating even when its chemical resistance is suitable. Thickness and system build must match the expected traffic and impact.
Wet and contaminated floors can be slippery. Novolox XT600 should not automatically be described as non-slip. Where a slip-resistant finish is needed, specify an appropriate aggregate and completed surface profile based on the facility’s risk assessment.
Consider the temperature during installation and in service. Hot liquids can intensify chemical exposure, while cold substrate temperatures extend curing. Thermal shock or repeated heating and cooling may also require additional system consideration.
Food, export, wastewater and chemical facilities may have specific requirements. Product selection should form part of a complete compliance and engineering assessment rather than being treated as approval by itself.
High-performance coatings rely on high-quality preparation. Applying an epoxy novolac over contamination, laitance, weak concrete or poorly bonded paint can lead to premature failure.
Concrete should be sound, clean and mechanically prepared to the standard and profile stated in the current TDS. New concrete should generally be at least 28 days old. Remove laitance, curing compounds, grease, oil, chemical residues and weak material.
Existing processing floors may contain contamination below the surface. Degreasing or pressure cleaning may not remove deeply absorbed oils and chemicals. Mechanical preparation and further testing may be necessary.
Cracks, damaged joints, spalls and voids should be repaired using compatible materials. Moving joints must be treated according to the floor design rather than rigidly bridged without assessment.
Novolox XT600 is described as tolerant to substrate moisture, but this does not mean uncontrolled moisture can be ignored. The TDS warns that bubbling or cratering may occur when concrete is outgassing because of rising temperature or high moisture.
Liquimix advises using Civilox LV110 to seal suitable concrete where required and recommends applying the coating while the slab is cooling to help minimise outgassing. Confirm the correct primer, application method and moisture limits with Liquimix for the specific project.
Steel should be cleaned of oil, rust, mill scale and previous coatings, then abrasively blasted to the standard in the latest TDS. Weld spatter and slag should be removed, edges treated and the required angular surface profile achieved.
Cleanliness must be maintained between preparation and coating. Flash rust, condensation or contamination can affect adhesion.
Measure air and substrate temperature, relative humidity and dew point. Do not apply over condensation or when conditions may cause moisture to form on the surface. Plan work around changes in slab temperature to minimise outgassing.
Novolox XT600 uses a 2:1 ratio by volume. Mix Part A and Part B thoroughly with suitable equipment. Do not alter the ratio to change the curing speed.
The stated pot life is approximately 45 minutes at 25°C. Warmer materials and larger mixed quantities can reduce working time, so organise labour, equipment and the application sequence before mixing.
Follow the project specification and verify wet film thickness during application. Thin spots can reduce protection, while excessive thickness may create other defects. Stripe coating may be needed around edges, welds and complex details.
At a 25°C substrate temperature, Liquimix lists approximately five hours to tack, eight hours to hard dry and 7–14 days for full cure. Cooler conditions extend these times. Do not expose the coating to acids, cleaning chemicals or heavy service until adequate cure has developed.
Check for pinholes, holidays, bubbles, missed areas and inadequate film thickness. Inspection requirements should be defined before work begins. Defects must be repaired using approved procedures before the area enters service.
Acidic processing environments can place concrete and steel floors under continuous pressure. Repeated spills, cleaning chemicals, wash-down water and corrosive residues may gradually erode unprotected concrete or accelerate corrosion of steel. Once deterioration begins, shutdowns and repairs can become more disruptive and costly.
Novolox XT600 gives Australian facilities a specialised acid-resistant industrial flooring option for suitable concrete and steel surfaces. Its 100% solids epoxy novolac formulation provides high chemical resistance together with water and anti-corrosion protection for correctly specified and installed systems.
Successful protection depends on much more than selecting a product name. Chemical compatibility, substrate condition, moisture, surface preparation, detailing, film thickness, curing and inspection all influence performance. The correct system should be built around the facility’s actual chemical schedule and operational demands.
Contact Liquimix to discuss your acidic processing environment and determine whether Novolox XT600 is appropriate. Request the latest Technical Data Sheet and Safety Data Sheets, and obtain a project-specific specification before application.
