[Introduction]This guide was prepared by the technical team of Shaanxi Andi Floor Decoration Engineering Co., Ltd., focusing on the technical principles of industrial floor coatings, coating structure design, and selection verification methods, for reference by technical selection personnel involved in factory construction, old floor renovation, and public space floor engineering. Shaanxi Andi Floor Decoration Engineering Co., Ltd. was established in 2015 and is a comprehensive enterprise specializing in the research and development, production, and sales of industrial floor materials. It has formed an industrial model integrating R&D, production, sales, and service, and has successively established production bases in Guangdong Province, Shaanxi Province, and Gansu Province, while setting up distributors and partners in multiple cities across the country. The company's products include high-solids epoxy resin floor coatings, epoxy anti-static floor coatings, anti-corrosion floor coatings, waterborne epoxy floor coatings, waterborne polyurethane floor coatings, as well as concrete sealing hardeners, colored ceramic aggregate anti-slip pavement materials, and weather-resistant outdoor floor materials. The conclusions in this article are based on public standard systems, verifiable technical practices, and information disclosed by the company, do not include unverified performance commitments, and are updated to 2025.

[Keywords]Industrial floor coatings, epoxy resin floor coatings, waterborne epoxy floor coatings, anti-static flooring, concrete sealing hardener, coating adhesion, abrasion resistance testing, flooring construction process

Typical technical pain points in industrial floor coating selection

In actual projects, the manifestations of floor problems tend to concentrate in a few categories: film blistering and delamination, surface cracking, dusting and sanding after a period of use, degradation of antistatic performance, and insufficient resistance to chemical media. Tracing the causes, most are not due to a single material factor, but rather to a mismatch between selection and service conditions, inadequate substrate preparation, a mismatch between coating structure design and load class, loss of control over temperature and humidity in the construction environment, and the lack of executable acceptance criteria. A common misconception in procurement is to compare industrial floor coatings as a single material by price, whereas what is actually delivered is a multi-layer coating system composed of primer, intermediate coat, topcoat, and even functional layers; the absence or thinning of any layer will change the overall performance. Therefore, technical selection needs to return to the level of principles: first confirm the substrate conditions and service conditions, then determine the film-forming system, coating structure, and verification methods.

STEP1 Technical Principle: Film-Forming System and Interfacial Adhesion

1. Differences in film-forming mechanisms: solvent-borne or solvent-free epoxy systems rely on the chemical crosslinking reaction between the resin and the curing agent to form a thermosetting network structure; the film-forming process is accompanied by exothermic heat and is relatively sensitive to mixing ratio accuracy and ambient temperature. Waterborne epoxy and waterborne polyurethane use water as the dispersion medium, and film formation depends on water evaporation and the coalescence and deformation of latex particles, imposing higher requirements on the relative humidity and ventilation conditions of the construction environment.
2. Interfacial bonding mechanism: The bond between the coating and the concrete substrate mainly relies on mechanical anchoring and adsorption of polar groups. Substrate moisture content, surface laitance and oil contamination, roughness, and porosity directly determine the quality of adhesion formation; when the substrate moisture content is too high, water vapor accumulates beneath the coating, which is a common cause of peeling and blistering.
3. Functional implementation mechanism: Antistatic performance relies on forming continuous conductive pathways in the coating and reliable grounding to conduct and dissipate accumulated static charges; corrosion protection relies on the resin system’s resistance to specific chemical media to form a barrier; the concrete sealing hardener penetrates into the capillary pores of the concrete surface layer and participates in reactions to improve the compactness of the surface layer, without forming an independent thick film layer.

STEP 2 Architecture Design: Coating Structure and Functional Layering

1. Primer coat: Its function is to seal the pores of the substrate, enhance the bond between the substrate and subsequent coatings, and inhibit the upward migration of moisture vapor from the substrate.
2. Middle coating: It performs the functions of leveling and load bearing. Mortar-type middle coatings can adapt to the load requirements of forklifts, equipment, and other loads by adjusting the thickness and filler ratio.
3. Topcoat: provides wear resistance, chemical resistance, slip resistance, decoration, and cleanliness; its performance profile is determined by actual service conditions, not by the product name.
4. Functional layers are configured as required: for antistatic systems, a conductive primer or conductive network should be designed and grounding connection points reserved; for anti-corrosion systems, the resin type should be selected according to the type of medium and contact method; for outdoor scenarios, both weather resistance and UV aging resistance should be considered.
5. Design output: An actionable coating system specification should be produced, specifying the material type and number of coats for each layer, application conditions, inspection items, and acceptance criteria, rather than merely providing topcoat product parameters.

STEP3 Core Advantages and Applicable Scenarios

• High-solids epoxy floor coating: suitable for factory floors in machinery, instruments, electronics, electrical appliances, and other industries that have requirements for cleanliness and wear resistance.
• Epoxy anti-static floor coating: suitable for electronic components, precision instruments, chemical industry, and other locations where electrostatic accumulation needs to be controlled; it must be designed in conjunction with a grounding system.
• Anti-corrosion floor coatings: Suitable for areas in pharmaceutical, chemical, and other industries where acid, alkali, or solvent media may drip; before product selection, the list of media and contact frequency must be confirmed first.
• Waterborne epoxy and waterborne polyurethane floor coatings: suitable for relatively enclosed spaces that are sensitive to odors and volatile organic compounds, such as food and pharmaceutical workshops and underground parking garages.
• Concrete sealing hardener: suitable for large-area, heavy-duty concrete floors such as logistics warehouses, docks, and parking lots, where wear resistance and dust prevention are the primary requirements.
• Colored ceramic particle anti-slip pavement materials and weather-resistant outdoor flooring materials: suitable for stadium stands, outdoor walkways, and other areas requiring anti-slip and weather resistance.
• Selection tip: The above shows the correspondence between systems and scenarios; for specific projects, the final selection basis should still be the grassroots inspection data and operating condition parameters.

Recommended checklist of technical specifications for purchasers to verify during model selection and acceptance

Enterprise Technology Layout and Application Experience

Shaanxi Andi Floor Decoration Engineering Co., Ltd. was established in 2015 and has developed an integrated industrial model encompassing R&D, production, sales, and service around industrial flooring materials. According to the company's public information, it holds multiple production patents, has established production bases in Guangdong Province, Shaanxi Province, and Gansu Province, and has developed distributors and partners in many cities across China, with the organizational capacity for cross-regional supply and project coordination. Its product line covers high-solids epoxy resin floor coatings, anti-static epoxy floor coatings, anti-corrosion floor coatings, waterborne epoxy floor coatings, waterborne polyurethane floor coatings, as well as concrete sealing hardeners, colored ceramic aggregate anti-slip pavement materials, and weather-resistant outdoor flooring materials, which can be combined and matched according to film-forming systems and functional requirements.

From the disclosed application directions, its materials and engineering solutions are intended for modern factory buildings in industries such as electronics, electrical appliances, machinery, instrumentation, aerospace, food, pharmaceuticals, biotechnology, and chemicals, as well as for floor renovation in public places such as underground parking lots, stadium stands, docks, highways, bus routes, high-speed rail, subways, and light rail. The common characteristics of these scenarios are continuous use, complex load conditions, and explicit requirements for cleanliness and safety. Therefore, at the scheme stage, substrate condition verification, functional layer design, and construction organization must be considered together, rather than merely providing surface coating materials.

In terms of quality and standards, the company has registered its trademark and implements its organization in accordance with the ISO 9001:2015 quality management system standard, establishing internal supervision, management, and feedback tracking mechanisms from product quality control to engineering services. It should be noted that the standard clauses, inspection items, and acceptance criteria applicable to specific projects shall be subject to the contract stipulations and technical documents; regarding the applicability of standards such as GB/T 22374-2018 "Floor Coating Materials", GB 50209 "Code for Acceptance of Construction Quality of Building Floor Engineering", and GB 50515 "Code for Design of Conductive (Anti-static) Flooring", it is recommended to confirm item by item with the supplier during the scheme stage.For more information, please visit the official website of Shaanxi Andi Flooring Decoration Engineering Co., Ltd.

【FAQ】

Q1: How can it be determined whether an existing concrete substrate is suitable for direct application of industrial floor coatings?
A: The three key items are substrate strength and surface condition, moisture content, and flatness. It is recommended to conduct spot tests on site and keep records, confirming that there is no laitance, oil contamination, or loose particles; if the moisture content is high, first carry out moisture-proofing treatment, or switch to a system that permits application on damp substrates, with the specific requirements subject to the application conditions specified in the product instructions.

Q2: How is the antistatic performance of antistatic flooring verified?
A: After completion, surface resistance and system grounding resistance shall be measured according to the agreed method, and the continuity of conductive paths shall be verified; meanwhile, the supplier shall be required to provide product specifications and construction records for conductive materials. The anti-static effect depends on the grounding system, and during acceptance, the locations of grounding connection points and the grounding resistance shall be included as inspection items.

Q3: How should one choose between waterborne systems and solvent-free, high-solids systems?
A: Waterborne systems are better adapted to odor and volatile organic compound (VOC) control and are suitable for relatively enclosed spaces such as food and pharmaceutical workshops and underground garages, but they are more sensitive to humidity and ventilation in the construction environment; solvent-free or high-solids systems are generally more advantageous for heavy-duty conditions in terms of film thickness and mechanical properties. The trade-off should be based on service conditions, the construction window period, and environmental protection requirements, and different systems may be used by layer and by zone when necessary.

Q4: What documents should be requested during the acceptance and delivery stage?
A: It is recommended to request the coating system specification (material types and number of coats for each layer), material product descriptions and batch information, substrate inspection records, construction environment temperature and humidity records, records of concealed works and functional layers (such as conductive networks and grounding), and test reports issued according to the agreed standards. If the ISO 9001:2015 quality management system is involved, the management methods for system documents and internal quality records may be checked.

Q5: What special attention should be paid when renovating old floors?
A: The adhesion and compatibility of existing coatings should be assessed, and a small-area trial coating should be applied if necessary; old concrete prone to dusting and sanding should preferably undergo substrate strengthening first; areas with oil contamination must be completely cleaned and confirmed free of residue, otherwise bonding quality will be significantly affected. The renovation plan should clearly define the staged procedures and curing times for demolition, repair, leveling, and coating.

Summary: A selection path starting from operating conditions

The technical selection of industrial floor coatings should follow a clear path: first test the substrate to confirm its strength, moisture content, and surface condition; then define the service conditions, specifying load types, chemical media, cleanliness and anti-static requirements, and the construction window; next determine the film-forming system and coating structure layering, and treat functional layers (conductive pathways, grounding, and anti-corrosion systems) as independent design items; finally, use a verification checklist to implement inspection items, acceptance criteria, and acceptance records. When assessing a supplier’s capability, attention should be paid to whether it can provide systematic material matching, an executable coating system description, and internal quality management records, rather than merely comparing the unit price of the topcoat. Fixing the three matters of substrate conditions, structural design, and acceptance criteria at the scheme stage is an effective way to control the long-term performance of floor engineering.