Types of coatings are important in current constructions and industry floor coating systems. The flooring coating systems are used in various commercial, industrial, and even residential places, and they consist of different layers of materials designed to protect the substrate and improve the floor. The common floor coating system consists of three main layers. These three layers include primer, intermediate coats, and topcoats. They have their own functions and consist of different materials such as epoxy, metal coatings, rock flake, polyurethane, polyurea, and even polyaspartic coatings of the premium grade. Knowing what each layer does will make the choice of an appropriate coating easier.

Primer Layer: The Foundation of Coating Systems
The primer layer is considered to be the first and most important layer in most coating systems because of its direct interaction with the substrate.
- Epoxy-based primers are the most common choice
It is frequently chosen because of its outstanding binding properties, as well as moisture resistance, providing an appropriate surface to ensure there will be no blistering, cracking, or lifting of the following layers. - Surface reinforcement and sealing function
The epoxy primer soaks up inside the pores and voids in the concrete surface, thus improving the strength of the concrete surface. It minimizes dust formation and makes the flooring system more stable. - Compatibility with multiple systems
An epoxy primer may be applied under various types of coating systems, such as metallic paint, decorative coatings, and industrial coatings used in the flooring systems. So an epoxy primer can be used as a universal substrate for coating systems.
Intermediate Layer: Functional and Decorative Enhancement
The intermediate layer, also known as the build coat or mid-coat, adds thickness, strength, and decorative value to the flooring system. In various types of coatings, this layer is often customized based on performance requirements.
- Metallic coatings for visual and chemical performance
There are metallic coating systems that have both aesthetic and functional qualities. These systems provide a 3D appearance and increase surface hardness and protection against chemicals. This makes the floor more applicable for industrial floors, commercial structures, and showrooms. - Rock flakes for durability and texture
Flakes made from epoxy or rock are common in the use in garages, hospitals, and factories. This type of coating adds non-slipperiness and hides surface irregularities. - Hybrid and functional fillers
Hybrid filler systems include quartz sand or other types of fillers. These give extra strength and toughness to the floor, especially when there will be heavy loads in the building.
Topcoat Layer: Protection and Performance Finish
The topcoat is the final and most exposed layer in types of coatings, responsible for aesthetics, chemical resistance, and long-term surface protection. It determines how the floor performs under real-world conditions.
- Epoxy topcoat for cost-effective protection
Epoxy topcoats provide strong hardness and good chemical resistance. They are often used in industrial environments where cost efficiency and durability are both required. - Polyurethane for flexibility and UV resistance
Compared to epoxy coatings, polyurethane coatings possess superior elasticity and perform exceptionally well in environments subject to temperature fluctuations. They also provide excellent UV resistance, making them suitable for outdoor or sun-exposed areas. - Polyurea for high-performance environments
Polyurea coatings are known for rapid curing, extreme durability, and waterproof performance. They are widely used in heavy industrial zones, parking structures, and waterproofing projects. - Polyaspartic as a premium topcoat option
Polyaspartic coatings represent a high-end solution among types of coatings. They cure quickly, resist UV yellowing, and offer long-lasting gloss retention. Although more expensive, they are ideal for premium commercial and decorative flooring systems.
System Integration: How the Three Layers Work Together
A complete flooring system depends on the interaction between all three layers, making the selection of types of coatings a structured engineering decision rather than a single-material choice.
- Adhesion chain from bottom to top
The primer anchors the system to the substrate, the intermediate layer builds strength and design, and the topcoat provides final protection. Each layer depends on the previous one for stability. - Performance customization based on environment
An industrial plant may opt for chemical resistance and weight bearing, while the commercial premises will choose aesthetics and anti-slip features in combination with the respective coatings. - Cost vs performance balance
Different coating combinations allow flexible budgeting. For example, epoxy-based systems are cost-efficient, while polyaspartic or polyurea systems are higher-end but offer superior longevity.
Conclusion
To conclude, the success of a flooring system ultimately depends on its coating materials – from primers, intermediate coatings, and topcoats. The primers form a good base layer, while the intermediate coatings – metallic or flakes provide the structure, and finally, the topcoats—epoxy or polyurethane—provide the desired finishing. The choice of the right coatings allows for the creation of a functional and attractive flooring system for different applications.
JINCHENG offers efficient flooring systems tailored to the unique needs of your projects. Our company specializes in developing types of coatings that ensure the durability and functionality of industrial floors and the decorative attractiveness of other types of flooring systems. For more information, please contact us.




















