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1. After the initial setting of concrete, the construction of wear-resistant flooring is carried out. The standard for the initial setting of concrete is generally that after pouring and compacting the concrete for 4-5 hours (depending on the weather), the surface of the concrete should be visually free of bleeding or leave a 3-5mm mark using the "finger pressure test method".   2. Construction technology of wear-resistant flooring materials   (1) Remove the floating slurry and use a mechanical trowel to polish the surface of the concrete to make it compact.   (2) Spread two-thirds of the specified amount of wear-resistant flooring material evenly on the concrete surface, completing one spreading operation. After the wear-resistant flooring material absorbs a certain amount of moisture, perform mechanical trowel polishing operations. Then, after the wear-resistant material has hardened to a certain stage, a secondary material spreading operation (one-third of the material) is carried out.   (3) The mechanical trowel operation should be carried out at least three times after the wear-resistant flooring material that has been spread twice has absorbed moisture. Mechanical trowel operations should be carried out in a criss crossing manner.   (4) The surface polishing operation for wear-resistant flooring materials involves using a mechanical trowel or manual spatula to continuously polish until the surface is completely smooth. Use a manual spatula to complete areas where mechanical construction is not possible, such as column edges or wall corners.  

Polyurethane floor paint has become the primary choice for ground treatment in many industrial and commercial places due to its superior performance and multifunctionality. The following is a detailed summary of its characteristics and functions:       characteristic       -Wear and pressure resistance: high hardness and excellent wear resistance, suitable for high flow and heavy load environments, such as industrial plants and warehouses.       -Chemical corrosion resistance: It has good resistance to chemicals such as acid, alkali, salt, and oil, and is suitable for chemical plants, food processing plants, etc.       -Dustproof and anti-static: Smooth surface to prevent dust accumulation, adding conductive agent to achieve anti-static function, suitable for the electronics industry.       -Environmental Health: Low solvent formula reduces the volatilization of harmful gases and improves indoor environment.       -Highly decorative: Rich in colors, customizable, enhancing aesthetics.       -Good anti slip performance: High friction coefficient provides excellent anti slip performance, suitable for humid environments.       -Strong adhesion: Strong adhesion to the substrate ensures stable and durable coating.       -High temperature resistance: Maintaining stability in high temperature environments, suitable for metallurgical plants, power plants, and other places.       effect       -Protect the ground: Provide a sturdy and durable protective layer for the ground, extending its service life.       -Improving work efficiency: A flat and smooth surface helps equipment and personnel move smoothly, enhancing safety.       -Improving the working environment: dustproof, anti-static, and easy to clean features improve the working environment and enhance employee comfort.       -Suitable for various places: widely used in industrial, commercial, educational and other places to meet specific needs.       In summary, polyurethane floor paint has become an important choice for protecting floors, improving work efficiency, and enhancing the working environment due to its wear resistance, pressure resistance, chemical corrosion resistance, as well as good decorative and anti slip properties.  

1、 How to mix epoxy floor paint       1. Epoxy resin, which is the main component material of epoxy floor paint. It is also essential, as it is the source of hardness, wear resistance, and toughness for epoxy flooring. The function of epoxy resin: The performance of epoxy floor paint depends on the epoxy resin, and the performance of epoxy resin depends on the molecular weight of the material: the molecular weight in the structure of epoxy resin determines the hardness, impact resistance, and other properties of the epoxy floor paint film.       2. As the name suggests, a curing agent plays a curing role. It has a solidification effect. The commonly used curing agents in floor paint engineering include 593 curing agent, T31 curing agent, 651 curing agent, 810 curing agent, ketimine curing agent, and NX-2040 curing agent. Effect of curing agent: The curing agent in the epoxy floor paint mainly affects the film hardness, gel time and drying time of the epoxy floor, but it can be dried quickly after the brushing construction, and the next process can be followed.       3. Solvent floor paint solvent. It can be divided into two types: solvent based and solvent-free. Solvent based floor paint requires the use of solvents. Solvent function: Floor paint solvents can adjust the viscosity of coatings and the dispersion and adsorption properties of pigments and fillers.       2、 How long can epoxy flooring be used after completion       After the completion of epoxy floor paint construction, the temperature should be set at 25 ℃. It can only be applied after 24 hours, pressed after 72 hours, and rinsed with water after 7 days. But the opening time needs to be extended at low temperatures, such as in winter or when the weather is humid, the drying time of epoxy floor paint will be extended, which is also a normal situation.

Epoxy resin wear-resistant floor coating is an important component of epoxy resin wear-resistant floor. Its preparation is quite complex and construction is also important, and the relationship between the two is close. It is not easy to manage both production and construction. Let's take a look at the "complete strategy" for the preparation and construction of epoxy wear-resistant floor.   The process flow of epoxy resin wear-resistant floor coating itself has low technical content, mainly due to the diverse formula changes to meet application needs. The reference material composition for epoxy resin wear-resistant floor coating is: base coat, intermediate coat (solvent based), intermediate coat (solvent-free mortar type), topcoat (solvent based), and self leveling floor.   The coating requirements for epoxy resin wear-resistant floor coatings are very high, among which the coating base surface requires solvent based and self leveling coatings to be constructed in accordance with the GB50212-91 base treatment clause. The following factors should be emphasized in particular: firstly, if the strength of the base surface does not meet the requirements or is too low, the epoxy resin coating will peel off the mortar surface after curing, and can be rubbed with a steel wire brush on site. It can also be tested for concrete strength using a rebound tester, or by tapping the base surface with a small iron hammer to determine the bonding strength (preferably greater than 1MPa) on site; Secondly, the dryness level of the base layer surface is affected by the large amount of moisture contained in the concrete and mortar during the flat construction process. When the ground coating is applied and dried to the required level, the curing time after the base layer construction can be used on site to simply determine whether the surface has turned white or measure the moisture content (based on the fact that the base layer has been treated with moisture-proof and waterproof layers); The third is "flatness", which means that there are no irregularities or bumps on the base layer. The coating is relatively thin compared to the mortar layer, and the flatness of the base layer directly affects the overall appearance quality of the coating. On site, a 2-meter ruler can be used to stick it to the base layer, and the gap should be within 5mm to determine the flatness of the base layer. For self leveling coatings with higher requirements, the ground should try to achieve a 2-meter ruler gap within 3mm. During construction, mechanical polishing machines can be used for further local "leveling"; The fourth aspect is the smoothness of the base layer surface, which means that the base layer surface is coated very smoothly with a metal trowel. The absence of rough surface can also affect the adhesion between the film-forming material and the base layer. If the base layer surface is particularly rough, it may not have sufficient strength and consume a large amount of material. Therefore, a suitable roughness is a crucial factor for the final effect of the ground coating. Light sandblasting (shot) machines are often used on site for surface treatment and to remove floating dust.   Painting construction tools cannot be ignored. Experts from the China Epoxy Resin Industry Association explained that the main tools include: polishing machines, sandblasting machines, industrial electric vacuum cleaners, portable electric polishing machines, hammers, chisels, and portable electric mixers (used for mixing main materials and curing agents); Other tools and materials include: electronic digital scales (up to 20kg), lighting fixtures, wiring boards, corner wipers (25cm, 30cm, 36cm), spikes, defoamers (or defoamers), paint brushes, rollers, serrated scrapers, rubber scrapers, protective tape, reminder boards, floor wax (for protection), etc.There are many main construction processes involved in construction. According to experts from the China Epoxy Resin Industry Association, the first step is base surface treatment: firstly, cleaning is the preliminary cleaning of the base surface before construction to fully expose the working surface; Secondly, the investigation of the basic surface condition is carried out through on-site inspection tools to conduct a detailed inspection of the working face and make detailed records. As the ground construction is a concealed project, the basic surface condition must be investigated clearly and recorded completely (which can be decomposed into multiple drawings). The size of the basic surface should be separately indicated on the drawing (accurate to centimeters); Thirdly, the treatment of attachments on the base layer often leaves cement dust during construction, especially when there is floating slurry (cement free alkaline crystals) on the new construction surface. These attachments need to be removed with electric tools or chisels before coating construction. A more thorough method is light sandblasting. The mortar debris, soil, cement foam, and oil stains adhered to the base layer surface must be thoroughly removed, especially oil stains. After using detergent to scrub, they should be washed clean with water and thoroughly dried; Fourthly, polishing and vacuuming should be carried out by combining local polishing with overall polishing for old surfaces with poor flatness; The fifth is the treatment of surface defects (such as peeling, cracks, and gaps). Peeling refers to the state where the bonding surface between concrete and mortar is peeled off and not properly adhered (if the entire bonding surface is peeled off, the mortar must be completely removed and re coated),   If only a part is peeled off, resin grouting can be used for repair. Cracks are often repaired by peeling off the shell. When repairing, a U-shaped groove with a width of about 1 decimeter is cut along the crack with an electric cutting machine and filled with resin mortar. The gap is a concave state on the base surface (the treatment method is to remove dust and other dirt, and smooth it with resin mortar). Sixth, the protective surface is mainly used to prevent the construction edge from being contaminated and maintain a completely straight line (or the boundary line with the uncoated part). Protective tape should be applied, and this process should be carefully completed before the bottom coating, middle coating, and surface coating construction. The main material of the base coat and the curing agent are mixed in proportion (refer to the manufacturer's product manual), and stirred evenly with a handheld electric mixer. The mixed base coat is poured onto the ground on a vacuum cleaned base surface, and the base coat is evenly and fully penetrated with a rubber scraper or roller. The application amount is generally 0.15-0.2 kilograms per square meter (only 0.1 kilograms for very smooth base layers). The curing time of the base coat is usually 12 hours, and the curing state is confirmed before proceeding to the next process of construction. The intermediate layer is a layer of adhesive or mortar that is further processed for the base surface that is uneven or has partial defects. It is required to prepare according to the actual situation on site (usually determined by the construction party after on-site survey). For the terrazzo base, only the adhesive layer can be made without the mortar layer. The middle layer should be cured for more than 24 hours in summer and longer in winter, and polished and vacuum cleaned after complete solidification. The main material of the surface layer and the curing agent are mixed in proportion (refer to the manufacturer's product manual), and stirred evenly with a handheld electric mixer. Solvent based surface coating can be applied using rollers or scrapers; For solvent-free self leveling coatings, the method of troweling can be used for construction. The specific operation is to pour the mixed self leveling material onto the ground, carefully scrape it with a serrated scraper (if possible, nail shoes should be worn to repair defects), and then use a defoaming roller to remove bubbles. Since the effective time of the material is about 20-40 minutes, and the application is a continuous work, it should be carried out as quickly as possible while ensuring the quality of scraping. Within 24 hours after the surface layer is cured and applied, no one is allowed to enter the construction site. After confirming the hardening state and whether it meets other quality management requirements, another layer of curing wax is applied to protect the coating surface. After drying, it is polished with a polishing machine (to be carried out by the user when using it).  

Brushing refers to the method of manually applying paint to the ground using a paintbrush dipped in paint. Its advantages are: simple tools, easy construction, easy to master, strong flexibility, strong applicability, and saving paint; For special locations and narrow areas such as corners, grooves, and machine equipment bases that are difficult to paint using other construction methods, manual brushing is often used for construction Before large-scale painting, it is generally recommended to apply 1 to 2 coats of paint to the above-mentioned area and expand the width by more than 30cm to facilitate overlapping during large-scale construction. Brushing does not form (paint mist), causes less pollution to the construction environment, has a high utilization rate of paint, and results in less waste. There are many types of paintbrushes, and the materials used to make the brush heads mainly include wool, ponytail, wolf hair, human hair, brown silk, and synthetic fibers During floor coating construction, hard brushes or nylon fibers are mainly used, which must comply with the requirements of QB1103 standard When choosing a paint brush, it is required that the front end of the brush head be neat, the hand feel is soft, there are no broken or inverted hairs, and there is no shedding of hairs. After dipping in solvent, shake the paint brush and the brush head does not separate, which is a high-quality paint brush.   The quality of brushing mainly depends on the actual experience and proficiency of the operators. Before brushing, mix the various components of the coating thoroughly, accurately prepare and mix them in proportion, and filter them out with a filter to remove impurities and particles. The viscosity requirement for brush applied paint is relatively wide, generally between 20 to 50 seconds, and can be adjusted with a specialized diluent. The requirements for brushing the ground are: no flow, no wrinkles, no leakage, and no exposed brush marks. Only with sufficient brushing work can epoxy flooring function better

Analysis of Causes for Floor Coating Color Bleeding       1. Insufficient construction interval between two consecutive processes   In multi-layer construction, if the next process is carried out before the previous one reaches the surface-dry condition, the newly applied paint layer will penetrate the underlying paint. If the colors of the two coats are identical, the impact is less noticeable. However, if the colors differ, it can result in color intermingling, with varying degrees of penetration at different locations, ultimately leading to highly disordered color effects.       2. Insufficient coverage of the topcoat   After the epoxy floor coating is completed, what users see is the color of the topcoat, so its coverage directly affects the color effect. In practical production, darker color series generally have better coverage, while lighter color series tend to exhibit weaker coverage. If dark-colored paint is used in the lower layers but the topcoat lacks sufficient coverage, common issues include a dull surface color effect, light reflection mixed with the hues of the dark color series, and significant color variations in areas with uneven topcoat application.       3. When mixing paints, the inclusion of other pigments is a common issue in projects involving multiple colors. Often, the same mixer is used for different colored materials without cleaning, leading to the blending of different paint colors. This results in incorrect color application and the intermixing of various iridescent effects.       preventive measures       1. Strictly adhere to the construction requirements. Different paint materials have varying curing times. It is crucial to follow the curing reaction cycle and actual temperature conditions for proper construction. This not only prevents color bleeding but also serves as an essential measure for ensuring project quality.       2. Properly Coordinate Floor Paint Colors   When using a light-colored topcoat, the epoxy primer and intermediate coat should adopt a similar color scheme or a transparent, colorless series to minimize the impact of the base color on the topcoat. Additionally, applying multiple layers of topcoat through repeated overcoating can further enhance the color's accuracy and vibrancy.       3. Proper Application of Epoxy Primer   We generally recommend that users prioritize the application of primer whenever possible, as it not only enhances adhesion but also provides excellent sealing properties. This helps reduce damage to the floor caused by water seepage and salt efflorescence, while effectively minimizing the discoloration effect of the base color on the topcoat.       4. Avoid mixing different colors of paint. Do not use the same mixer to prepare epoxy floor paint of different colors, or clean it thoroughly before reuse. Prevent the mixing of other colored pigments or paint during the construction process.  

Plastic track, also known as all-weather athletics track, has elasticity and color, and is recognized as an all-weather outdoor sports venue. More and more sports fields are choosing plastic tracks, but there are also increasing problems in the construction of plastic tracks. During the construction process of plastic tracks, people often complain about why the material of plastic tracks tends to become sticky and soft? Is there a problem with the information? In fact, this is not a problem with the quality of the data itself, but more likely involves multiple factors such as mix and match errors, the addition of drying agents, and external temperature and environmental influences.   Under what conditions will plastic track materials appear soft and sticky?   1、 Mixing ratio error: Check the mixing ratio, raw material residue, and operational responsibilities. Generally, this situation is caused by multiple groups of B and uneven mixing.   2、 Data deposition: Due to the formation of hidden mix proportion errors in data deposition, it is necessary to ensure sufficient and uniform mixing of data before construction.   3、 Reason for diluents: Some diluents contain too many hydroxyl groups, which digest the curing agent of component A, resulting in insufficient curing dosage, ultimately causing the data to become soft and even unable to cure. It is necessary to prevent the use of diluents containing alcohol gasoline or high water content.   4、 Low temperature causes reaction deactivation: Generally, the construction habit is to use a temperature between 10 ° C and 35 ° C. If the temperature is too low, a drying agent should be added, or a strike should be carried out to choose a construction date.   5、 Data degradation: Due to the prolonged storage time of plastic track materials or improper data storage methods, the data has degraded and become inactive. At this moment, qualified data should be replaced.   6、 Reason for drying agent: Due to the addition of drying agent, when there is a large temperature difference, on-site measures need to be taken to ensure the effective solidification of data during the construction process of plastic tracks.