In industrial production, epoxy flooring has become the preferred flooring material for many workshops due to its advantages of wear resistance, corrosion resistance and easy cleaning. However, with the passage of time and frequent use, epoxy flooring will inevitably wear, shelling, cracking and other problems, not only affecting the aesthetics of the workshop, but also may pose a certain threat to production safety and efficiency. At this time, epoxy floor renovation process is particularly important, it can make the old floor new, restore its original performance and value.

First, the preparatory work before renovation

1. Site survey: before the epoxy floor renovation, the current situation of the workshop floor for a comprehensive survey, detailed records of the ground damage, crack width, shelling range and so on. At the same time, understand the production environment of the workshop, such as whether there are chemicals erosion, whether there are heavy vehicles driving frequently and other factors, in order to develop a targeted renovation program.

2. Preparation of materials and tools: According to the survey results and renovation program, prepare the required materials, such as epoxy primer, medium paint, top coat, curing agent, quartz sand and so on. Tools, including sanding machine, vacuum cleaner, mixer, scraping tool, rolling tool, etc., to ensure the integrity and applicability of the tools.

3. Workshop cleaning: Remove all the equipment, goods and other items from the workshop, and thoroughly clean the ground to remove debris, dust and oil stains. For the difficult to remove oil pollution, you can use special cleaners to deal with, to ensure that the ground is clean and tidy, to lay a good foundation for the subsequent renovation work.

Second, the old floor treatment

1. Sanding: Use sanding machine to sand the old epoxy floor, remove the surface coating, oil, shelling part and uneven places. During the sanding process, pay attention to control the depth of sanding to avoid excessive sanding leading to grass-roots damage. After sanding, the ground should show a uniform rough surface to enhance the adhesion of the new coating and the ground.

2. Cracks and holes repair: For the cracks on the ground, according to its width for the appropriate treatment. Narrower cracks (less than 3mm) can be filled directly with epoxy repair material; wider cracks (more than 3mm) need to be cut into the crack into a “V” shaped groove, and then filled with epoxy mortar repair, and use a scraper to scrape the surface flat. For holes, also use epoxy mortar to fill, to ensure that the holes and the surrounding ground flush.

3. Vacuuming and cleaning: After the sanding and repair work is completed, use a vacuum cleaner to repeatedly vacuum the ground to ensure that no dust and debris remain on the ground. After vacuuming, then use a clean mop or rag dipped in a small amount of water, the ground for the final cleaning, to ensure that the ground is dry and clean.

Third, epoxy floor renovation construction

1. Primer construction: mix the epoxy primer with curing agent in accordance with the specified ratio, and then use a roller or spray gun to paint the primer evenly on the treated ground. The role of the primer is to close the ground, enhance the adhesion of the ground and the coating. When painting, attention should be paid to avoid leakage and hanging phenomenon, to ensure that the primer evenly cover the ground. Generally speaking, the primer should wait for 8-12 hours after painting, and wait until it is completely dry and cured before proceeding to the next step of construction.

2. middle coating construction: after the primer is dry, mix the epoxy paint with appropriate amount of quartz sand and curing agent, use the mixer to mix evenly to make epoxy mortar. Then use the scraper to scrape the epoxy mortar evenly on the primer layer, according to the flatness of the ground and the use of the requirements, scraping thickness is generally 1 - 3mm. the main role of the middle coating is to increase the thickness and strength of the floor to improve wear resistance and load-bearing capacity. In the process of scraping, the flatness of the coating should be checked with a ruler at any time, and the uneven place should be repaired in time. After the construction of the middle coating, need to wait for 12 - 24 hours, until it is fully cured before sanding.

3. Sanding and Vacuuming: After the medium coat has cured, sand the surface with a sanding machine to smooth the surface and remove any particles and bumps that may be present. After sanding, vacuum cleaner is used again to fully vacuum the floor to ensure that the ground is clean and dust-free.

4. Topcoat construction: Mix the epoxy topcoat with the hardener in the correct proportion and apply the topcoat evenly on the medium coat using a roller or spray gun. The function of top coat is to provide beautiful surface effect and good abrasion and corrosion resistance. When applying the topcoat, it is usually necessary to apply 2 - 3 coats, with a waiting time of 6 - 8 hours between coats, until the previous topcoat has dried before the next one is applied. When painting the last topcoat, you can add the right amount of anti-slip agent to improve the anti-slip performance of the floor.

Fourth, the maintenance and acceptance after renovation

1. Maintenance: After the construction of epoxy floor renovation is completed, it is necessary to carry out adequate maintenance and acceptance.

Fourth, the maintenance and acceptance after renovation

1. Maintenance: After the construction of epoxy flooring renovation is completed, adequate maintenance is required. During the maintenance period, personnel and vehicles should be avoided walking or driving on the ground to prevent damage to the new floor. General maintenance time is 7 - 10 days, the specific time can be adjusted according to the ambient temperature and humidity. During the maintenance period, keep the workshop well ventilated, which is conducive to the drying and curing of the flooring.

2. Acceptance: After the maintenance period, acceptance of the renovated epoxy flooring is carried out. Acceptance inspection includes the appearance of the quality of the floor, such as whether the color is uniform, there is no hanging, bubbles and other defects; flatness, the use of a ruler to check the flatness of the surface of the floor is in line with the requirements of the flatness error; hardness, the use of hardness testing tools to detect the hardness of the floor is to meet the design standards; abrasion resistance, through the relevant abrasion test equipment on the floor of the abrasion resistance to test performance. Only the indicators are in line with the requirements, only to complete the epoxy floor renovation work.

Through the above systematic epoxy floor renovation process, can effectively solve the various problems of the old industrial workshop floor, for the workshop to create a flat, beautiful, durable work floor. This not only helps to improve the overall image of the workshop, but also provides a safer and more efficient environment for production activities and provides strong support for the sustainable development of the enterprise. In the actual renovation process, the operation should be carried out in strict accordance with the requirements of the construction process, and reasonable adjustments should be made according to different ground conditions and use requirements to ensure that the renovation effect is optimal.