What is the analysis of the causes of the failure of the epoxy resin floor coating?

1. Many epoxy resin floor paints can not be used on the base surface with high water content, therefore, if this floor material is used, the subcoat will be damp before completion, and it is likely to cause the entire floor system to be greatly affected after the coating is completed, which will cause the floor surface layer to blister, delamination, and even failure. 2. There are two main reasons for the hollowing and shelling of the epoxy resin floor paint coating: 1. There is a base slurry and dust accumulation, and the base layer and the top coat are not well combined; 2. The moisture content of the base layer is large, and it is still the water rate after the drying treatment.

The blistering of epoxy resin floor paint is due to weather or external factors.

The epoxy resin floor coating is raised and then cracks are shedding

The epoxy resin floor coating is locally raised, mainly manifested by the appearance of a diameter of 2 5 mm and 30 mmThe main reason for the different degrees of 50mm protrusion is that the base layer is not dry enough, the gas is concentrated under the paint film, and the coating film surface absorbs water and is raised, or there are impurities that are not cleaned up when the paint film is cured. Cracks appear in the coating, which are manifested by shrinkage cracking of the coating film and cracking of the coating due to cracks in the base layer.

2.Expansion Crack Cracks:

The foundation often has the foundation gap that satisfies the thermal expansion and contraction of the structure, and when the epoxy floor is constructed, the foundation reserved joint should be cut and pretreated, the stress should be released, and the subsequent floor construction should be carried out after filling with flexible materials.

3.Lacquer color separation, flowers.

This problem is mostly caused by the poor performance of the material, or the improper addition of thinner material in construction, which will affect the floor decoration effect.

4.The surface is uneven and uneven.

This is a common problem of flooring, mostly due to poor foundation, plain ground grinding is not in place, material scraping is not good, and poor construction of later repair and grinding work. Although it has little impact on functionality, it greatly reduces aesthetics.

5.The wear time is short, and it is easy to break.

Some floors were originally designed for 10 years, but they were damaged after not being used for five years. It is mostly caused by insufficient material consumption, cutting corners by the construction unit, and poor wear resistance of materials.

6.The epoxy resin layer is easy to fall off and warp.

The concrete base is normal and undamaged, and the paint surface shelling occurs in a large area, which is directly due to the lack of interfacial cohesion. It is mostly caused by insufficient foundation grinding, poor adhesion of the material, or oil and moisture on the base surface.

7.The epoxy coating is tightly combined with the mortar on the surface of the concrete base, and the failure surface appears inside the concrete base, and the failure surface is located in the mortar plane of the concrete base. This form of failure generally occurs in a large area, and the direct cause is the insufficient tensile strength of concrete.

First, the requirements of floor paint construction on the base surface.

1. The surface of the base must be dense, without looseness, sanding, and delamination;

2. The strength of the floor concrete finally reaches more than C25, and the surface pressure is more than 60MPa; 3. The surface flatness of the base layer reaches 2 meters, and the ruler inspection is not more than 3mm; 4. For the construction of epoxy ground on the first floor, the ground moisture-proof treatment should be carried out first; 5. The moisture content of the base surface is required to be less than 4;

Second, the requirements of floor paint construction on the space environment.

1. Clearance of ground piles, engineering garbage and construction equipment at the construction site;

2. Other construction teams are evacuated from the operation area, and non-construction personnel and vehicles are not allowed to enter the floor paint construction area; 3. There shall be no water leakage or seepage on the wall and top wall;

4. Ensure sufficient lighting in the construction area to ensure that the construction personnel have a good line of sight;

5. There are good ventilation facilities in the construction area to ensure the flow of air during or after construction, which helps the paint layer to dry and shorten the curing time.

Third, the floor paint construction technical scheme.

1) Construction process:

1. Base surface treatment: the base surface is carefully polished and completely dusted;

2. Epoxy resin primer construction: Brush the permeable epoxy primer to fully penetrate the ground and achieve a uniform surface.

membrane, no omissions, and a certain brightness;

3. Grind, vacuum and brush epoxy primer on the base surface after epoxy primer construction; 4. Epoxy resin middle coating construction: uniformly scrape and coat the entire base surface with quartz sand or putty according to the process requirements; 5. Epoxy resin topcoat construction: fine grinding, dust removal, and uniform epoxy coating on the entire base surface according to process requirements; 6. Maintenance and construction are completed.

2) Key points of construction technology:

1. Base surface grinding and vacuuming: polishing and vacuuming the base surface as a whole. Be sure to put the oil stain on the base surface and float.

Dust and other dirt are removed and vacuumed thoroughly so that the epoxy layer is fully bonded to the substrate.

Epoxy floor construction plan.

2. Epoxy primer construction: the quality of the bottom treatment directly affects the adhesion between the inorganic cement foundation and the epoxy resin layer.

Yes, the primer method is to add an organic diluent to the epoxy resin to reduce the viscosity and appropriately extend the curing time, so that the epoxy resin can fully penetrate into the deeper layers of the cement foundation to form a composite structural layer with high strength. 3. Epoxy primer construction: After the epoxy primer is completed and completely cured, the surface of the epoxy primer is slightly haired with a hand grinder and cleaned by vacuuming. Then use epoxy bottom oil to mix an appropriate amount of quartz sand or quartz powder, wipe it with a flat scraper, and defoam it with a toothed roller.

4. Epoxy topcoat construction: After the construction of the primer is completed and completely cured, slightly brush its surface and absorb dust. It.

After that, you can use a roller to roll the epoxy surface to coat the material. It is required to be smooth, smooth and clean, and the color is uniform, and no hollowing and delamination are allowed.

5. Curing: The curing period is 5-7 days (do not use it yourself during the curing period, do not wash it with water or chemicals) in the construction.

It is important to avoid the disadvantages caused by manual work, such as bubbles.

Solvent-free epoxy medium coating, man-coated leveling.

It is very direct to tell you that the base surface is uneven and the epoxy floor is still uneven, so I am not happy to hear it! That's the reality; Look at those who answered that the salesman has no construction experience, in reality, the civil engineering masters all say that "epoxy self-leveling can be flattened", most of the words shirk responsibility or comfort people, think about it: concrete has at least 50mm thickness, those who are constructed all day or a lifetime are uneven, you can level an epoxy a few millimeters thick?

Can you level with a simple mill? When you see the unevenness of the waves with your eyes, in fact, their height difference is more than 5mm, and the epoxy has a luster, it is easy to see the unevenness, the concrete is matte, it is not easy to find the uneven ground, once found, the difference is more than 30mm, how much money can the owner give you for construction? How much material can you come up with to fill in?

The theories are perfect, the reality is skinny, believe me to prepare early, listen to good words will definitely suffer a big loss.

Common causes of epoxy floor peeling and prevention methods.

Poor surface treatment or improper construction of epoxy floor paint during construction can easily lead to the problem of peeling of epoxy floor. So what are the specific causes of epoxy floor peeling? How can it be prevented?

Everyone knows that epoxy flooring is toxic.

Epoxy resin itself is non-toxic, but epoxy flooring contains incomplete epoxy solid collectors, which are carcinogens and toxic. Epoxy resin must be cured with epoxy resin curing agent, these epoxy resin curing agent is toxic, such as MDA, TDL is carcinogens, they remain in the epoxy resin floor and slowly volatilize, if you enter the underground parking lot made of epoxy resin floor, you are surrounded by carcinogens.

Fortunately, there are now Nalute Hanjia concrete sealing curing agent and Nalute Hansi concrete sealing curing agent. With the introduction of China's environmental protection policy, Nalut concrete sealing curing agent flooring has a great momentum to replace epoxy resin flooring.

Common causes of epoxy floor peeling and prevention methods.

Cause of epoxy floor peeling 1

The surface treatment before painting is not good, there are oil, wax, water vapor, dust and chemicals on the surface of the coated object, or the interval between surface pretreatment and painting application is too long.

Prevention and control method of epoxy floor peeling: the surface of the coated object should be treated and cleaned before painting, and the coating construction should be carried out immediately.

Epoxy floor peeling causes 2

Improper primer selection. If the hardness of the primer is too large and the surface of the coating film is too smooth, it will cause the adhesion between the topcoat and the primer to lose its due adhesion.

Epoxy floor peeling prevention and control method: a primer with good adhesion and wettability should be selected.

Epoxy floor peeling causes 3

The surface of the coated object is too smooth.

Prevention and control method of epoxy floor peeling: the surface of the coated object should be polished or chemically treated, and the old paint surface should be re-polished.

Epoxy floor peeling causes 4

The paint package is not appropriate.

Epoxy floor peeling prevention and control method: through the test to select a good matching coating variety and change to the "wet wet" process, or increase the intermediate coating.

Epoxy floor peeling causes 5

Topcoat or varnish is applied before the primer dries, and the coating film is prone to cracking or peeling.

Epoxy floor peeling prevention and control method: Generally, the primer should be completely dried before covering the topcoat.

Epoxy floor peeling causes 6

Apply to wet or mildew-stained surfaces so that the paint adheres poorly to the substrate.

Epoxy floor peeling prevention and control method: masonry, cement and other surfaces should be fully dried and mildew stained after the coating construction.

Epoxy resin is an organic compound that contains two or more epoxy groups in the molecule, and their relative molecular mass is not high except for a few individuals. The molecular structure of epoxy resin is characterized by the presence of active epoxy groups in the molecular chain, which can be located at the end, middle or in a cyclic structure of the molecular chain. Because the molecular structure contains active epoxy groups, they can be cross-linked with various types of curing agents to form insoluble polymers with a three-way network structure.

All polymer compounds containing epoxy groups in their molecular structure are collectively referred to as epoxy resins.

The "epoxy" mentioned in the epoxy flooring series products refers to the epoxy resin named because it contains an epoxy group in the molecular structure of its polymer compounds, which is the main film-forming component of epoxy resin flooring materials (coatings). Epoxy resins are a general term for a large class of resins. Epoxy flooring is a floor laid with epoxy resin as the main material.

What is the difference between epoxy flooring and epoxy flooring? Epoxy flooring is the abbreviation of epoxy resin flooring, and the two are actually the same. But epoxy flooring is toxic!

Everyone knows that epoxy flooring is toxic, epoxy resin itself is not toxic, but epoxy flooring contains incomplete epoxy solid collectors, these epoxy curing agents are carcinogenic substances and are toxic.

Before the epoxy resin floor paint, it is very important to pre-treat the original cement or terrazzo (terrazzo) plain ground. The surface must be polished rough, in order to enhance the adhesion between the ground and the epoxy resin floor paint layer, in the future on the epoxy resin floor walking forklifts, carts and other heavy objects, it is difficult to loosen the floor paint, fall off, can extend the service life of the epoxy floor paint exponentially.

According to the analysis of experts in the floor stuffy zone, the strong adhesion of epoxy floor paint can extend the service life of epoxy floor paint. Therefore, in order to increase the service life of epoxy floor paint, we must treat the base surface and polish the base surface before the floor construction, and only the rough ground can ensure good adhesion with the epoxy resin floor paint layer. After sanding, the base surface can have a very ideal tight bond with the epoxy floor paint.

Xiamen Hongweida company in many years of epoxy floor paint construction experience summary, such as some old paint floors in industrial plants, smooth and hard surfaces, machine vibration areas, etc. are some need to focus on the grinding of the ground, even if the ordinary ground to be coated epoxy resin floor, should also be carefully polished, only in this way, in order to make the floor paint layer and the base surface more tightly and firmly adhered together, in order to ensure that the service life of epoxy floor paint is longer.

For a long time, traditional manual washing, sweeping, and mopping cannot effectively clean and deal with the dust and dirt generated every day. Washing: It cannot wash the sticky dirt on the ground, and a large amount of water increases the humidity of the indoor parking lot, which is not easy to dissipate in the indoor space, and it is easy to have a certain erosion of equipment, facilities and vehicles for a long time; Sweeping:

Moreover, it cannot clean the sticky dirt on the ground, and the floating dust ground is more likely to produce dust, resulting in secondary pollutants; Mopping: Only 20% of the floating dust can be taken away, and the dirt can only be evenly dragged on the ground, "mopping" is actually "a long-term uniform pollution", and it can also not clean the sticky dirt on the ground, nor can it clean the ground thoroughly.

1. For the factory workshop every day, industrial waste, oil stains, iron filings, sand particles and other solid liquid infiltration debris will be continuously generated around the work, if not cleaned in time, scattered hard objects grinding the ground will cause ground wear; The industrial vacuum cleaner effectively solves such a working environment, fixes the vacuum cleaner next to the production equipment, and turns on the vacuum cleaner regularly or for a long time to suck away the industrial waste (note: At present, many confuse the concept of commercial vacuum cleaning and industrial vacuum cleaning), which can not only quickly clean up the garbage and improve the production effect, but also provide a clean working environment for employees, and the epoxy floor is also maintained in time. If the maintenance is not timely, it is easy to cause the cleaning and window breaking effect, which is discussed in a separate article in the management theory of fast cleaning.

2. Vehicles, forklifts, forklifts, and staff enter and exit the production workshop, and it is easy to bring in sand, dust, and oil from the outside world and bring them to every corner of the entire workshop. Invest in a floor scrubber for cleaning, the floor scrubber can effectively improve the working environment, and the floor scrubber can simulate the entire cleaning process and is an automatic cleaning equipment for cleaning and sucking sewage. The cleaning area of the walk-behind scrubber can reach more than 1,500 square meters per hour, and the driving cleaning area can reach more than 5,000 square meters, of course, these are theoretical areas. There is no problem for cleaning the open ground, the current limitations of the automatic floor scrubber are only able to clean the channel for the factory, and for the bottom of the machine tool, the place where the work table is relatively low, the general large-volume floor scrubber can not be cleaned.

At this time, you can consider using a small single disc machine for cleaning, and then use the absorbent squeezer of the suction machine to reach in to absorb water, and cooperate with the operation to clean, the effect is very good.

3. Is there only a vacuum cleaner and a floor scrubber for floor cleaning? This is a common machine and equipment at present, and you can also consider sweeping vacuum cleaners, that is, sweepers, driving, hand pushing, there are also many types; The power drive includes gasoline, diesel, electricity, etc.; When purchasing cleaning equipment, attention should also be paid to secondary dust, noise, operation time, etc.