Nowadays, the market can be said to be dominated by glazed tiles, and the prices are also very friendly. However, the once popular polished tiles have fallen into a price war, and their prospects are unclear. When the terminal research team of China Ceramics Network visited the Shandong market, they learned that the price of 800X800mm polished tiles (produced in Shandong) from a certain building materials wholesaler is only 14 yuan. Although the quality cannot be guaranteed, it is enough to make other ceramic tile wholesalers desperate. Can go. The market price of polished tiles is so chaotic that many consumers mistakenly believe that this product is not good, and most polished tile manufacturers are on the verge of extinction.
Currently, polished brick products are still widely used in home decoration, and most of them are finely decorated houses. We all know that whether it is material selection or construction, the cost is always the first factor considered by developers, and the effect is difficult to meet the owner's expectations. It is expected that everyone's impression of polished tiles will be greatly reduced.
Last week, a reporter from China Ceramics Network was invited to participate in the technical appraisal meeting of a polished tile production company in Qingyuan. The company improved and adjusted the original polished tile production line and developed two new products while ensuring production costs. A polished tile product with good decorative effect and superior performance. It can be seen that in the current market environment, there are still companies that maintain their original intention of making good products. In fact, bricks are still good bricks, but there are too many sources of information, too complicated and confusing, causing consumers to lose trust in polished bricks.
Today, Zhongtaojun plans to tell everyone about the product of polished tiles. I hope that after reading this article, you can have a more rational and objective understanding of polished tiles. It is quite long, so it is recommended to save it first!
What are polished tiles
Polished brick is a kind of bright brick made by polishing the surface of the full-body brick body. It is a kind of full-body brick. Compared with full-body tiles, the surface of polished tiles is much smoother. Polished tiles are hard and wear-resistant and suitable for use in most indoor spaces except bathrooms and kitchens.For example, it can be used for balconies, exterior wall decoration, etc. Based on the application of infiltration technology, polished tiles can produce various imitation stone and imitation wood effects.
The development of polished tiles
With the continuous improvement of production technology level, the quality of polished tiles in my country is at the forefront of the world, and the quality is at the internationally advanced level. The national standard is higher than the European standard, and parameters such as surface flatness, edge straightness, right angles and wear resistance are more than 2 times higher than the European standard. The technological requirements are higher than those of foreign small-sized ceramic tiles. In terms of seamless splicing, the requirements for tile size accuracy are also higher and the quality is better.
Polished tiles account for a large share of exports. However, oversized ceramic tiles are affected by the environment, strength, and damage rate, and will not have greater development. In order to seek change, ceramic companies have made great efforts in science and technology to improve the performance of polished tiles and make polished tiles breakthrough innovations.
Classification of polished tiles
▋The first category: seepage type polished tiles
It is the most basic product, so it is relatively common, and almost all manufacturers are making it. The production process is also relatively simple, which is to apply a layer of seepage glaze on the body, about 5mm on the surface, and then polish it twice, trim it, chamfer it, and then do an anti-fouling treatment before leaving the factory. The most important thing is the last anti-fouling process. Some manufacturers do a good job in anti-fouling and use imported anti-fouling agents, but some manufacturers use very cheap ones, and some even do not use anti-fouling. Treated with wax. There are no problems with this kind of product when paving it. After a long time, you will find a lot of missed spots or places similar to ball marks. In addition, stains will seep into the tiles, making it difficult to clean.
▋Category 2: Micropowder bricks
A layer of finer powder (it is said to be as fine as microns) is sprinkled on the surface of the green body. The raw materials used for the green body and the surface layer are the same. That is to say, the powder on the surface layer isAfter another long period of ball milling, the powder is scraped onto the green body with a scraper and pressed again to form. This type of product has an advantage. The direct benefit of fine surface particles is that it may have low water absorption and strong anti-penetration ability. The disadvantage is that the texture of all micro-powder bricks is the same, with regular vertical patterns, and the overall effect after paving is very average (personal vision is different, some people may like it). There is another disadvantage. Some products with poor quality will have interlayer cracking. After all, they are pressed twice.
▋Category 3: Multi-tube fabric polishing tiles
The production process of this type of product is quite special. When the powder material is cut, many tubes are cut and pressed at one time. The designs, colors and textures of the products are very natural, and each brick is roughly the same but different. It can replace natural marble. But only a few big manufacturers produce it.
▋Category 4: Full body polished tiles
When producing this kind of polished tiles, the brick surface and the brick embryo are made of the same powder. After the brick embryo is pressed out by a press, it is directly polished. Due to the high cost of raw materials, few factories now make full-body tiles. There are also some factories. I will choose several models to make full-body polished tiles, mostly for solid color series polished tiles.
Advantages and Disadvantages of Polished Tiles
▋Advantages of polished tiles
1. No radioactive elements: Polished tiles are sintered at high temperatures and do not contain individual radioactive elements. Long-term exposure will not cause harm to the human body;
2. There is basically no color difference under control: the polished tiles are carefully blended, and the designs and colors of the same batch of products are consistent, with basically no color difference;
3. High bending strength: Polished tiles are pressed by thousands of tons of hydraulic presses and then sintered at high temperatures above 1200°C, resulting in high strength;
4. Anti-skid: The surface of polished tiles is smooth and bright. Many consumers think that its anti-skid effect is poor and it will increase safety risks if water is sprinkled on it. Therefore, they avoid it and have no choice but to choose matte tiles with "restrained light". In fact, all polished tiles are anti-slip, as long as they are carefullyRegular cleaning will not affect its anti-slip effect. Polished tiles are no different than matte tiles in terms of anti-slip properties.
▋Disadvantages of polished tiles
Easy to stain. Polished tiles produced by big brands have high density due to good presses and high firing temperatures, so stains are not easy to penetrate. However, this is not absolute. No matter how good the polished tiles are, they will definitely be exposed to stains for many years. It will leave traces that will never be erased. There is a new process called super clean and bright, which is to put a layer of liquid glaze on the surface of polished tiles, which greatly enhances the anti-fouling ability, but weakens the anti-slip ability. At the same time, the super clean and bright glaze layer on the surface of polished tiles also has certain Keep time limits.
Polished tiles FAQ
▋Where do the black spots on the polished tile surface come from? What are the sorting standards?
There are many reasons for the black spots on the surface of polished tiles, such as impurities in raw materials, brought in from the workshop, impurities dropped from the kiln, etc. The main reason is that the raw materials contain iron. The national standard for judgment is that for superior products, at least 95% of the bricks have no defects on the surface when viewed vertically from a distance of 0.8m.
▋Which one has the best anti-slip effect among polished tiles, matte tiles and crystal tiles?
The friction coefficients of crystal tiles, polished tiles and matte tiles increase in sequence. However, because the surface of the polished tiles has been polished and flat, the contact area with the shoe bottom is increased, and the friction force generated is also larger. In image terms, the adsorption force of the polished tiles to the shoes is enhanced. Therefore, matte tiles and polished tiles generally do not have anti-slip problems. The anti-slip performance of crystal tiles is poor.
▋The polished tiles are in good condition when they are laid, but why do cracks appear on the surface after being used for a period of time?
Polished tiles are calcined at high temperatures to become porcelain, and will generally not break if used correctly. If the cement grade is too high or pure cement is used, the strength is too high. The hardening of the cement is accompanied by drastic changes in volume or the polished tiles do not leave expansion joints. Cracks often appear with certain regularity and direction.
▋Why do polished tiles often arch and deform?
When the polished bricks are fired, the volume shrinks. Uneven temperatures in the kiln cause inconsistent shrinkage in various parts of the bricks. Adjusting the temperature makes the bricks slightly arched, which is beneficial to the subsequent polishing process; on the other hand, the arched design also It brings convenience to cleaning; in addition, during the paving process, the expansion of cement can weaken the arch deformation.
▋Can polished tiles be used in bathrooms and kitchens?
Bathrooms and kitchens are places where water often accumulates, so polished tiles are generally not used to pave bathrooms and kitchens. Instead, matte glazed tiles are mostly used; but when using small-sized polished tiles such as 300X300mm, the friction between the seams can cause serious damage. Increase anti-slip.
▋What is the reason for the deformation of the "kicking" of polished tiles?
1. The workers are "guerrillas" with low quality, wrong construction methods, and poor construction quality causing deformation of the paving;
2. The product instruction manual was not followed during construction, the paving directions were inconsistent, and no expansion joints were left;
3. The product itself is deformed beyond the standard.
▋Why are there color differences in polished tiles after they are laid?
1. Different locations may be under different lighting conditions after paving, causing visual color difference;
2. During construction, the color numbers on the packaging boxes were not checked, and bricks of different batches and color numbers were laid together;
3. The colors are mixed when the products are graded at the factory, and bricks of different color numbers are mixed together, or the graders' professional level is low and they cannot distinguish them.
▋Are the polished tiles laid in winter prone to arching in summer?
If the temperature is too low in winter, the cement mortar has a long solidification period, which can easily cause hollowing and loosening of ceramic tiles. Generally, if the indoor temperature is lower than 5℃, it is not suitable to lay ceramic tiles. If there is heating in the room, it is not suitable for laying ceramic tiles. What a big impact. Generally speaking, the main cause of ceramic tile arching is that no seams are left when the ceramic tiles are laid, or the seams are too narrow, or the ceramic tiles are paved with hollows. It has no direct relationship with whether the ceramic tiles are laid in winter.
▋How to ensure that the tiles do not crack when drilling holes in the wall with vitrified tiles?
1. Check whether there are hollow drums. During the process of drilling the tiles, if the hollow drums are hit, the tiles will be easily cracked;
2. Find skilled workers to operate. If it is not operated by skilled workers, uneven drilling force and poor control of the impact drill can easily crack the tiles, so it is best to find skilled workers to operate;
3. During the drilling process, spray water at the drilling location. During the drilling process of the impact drill, the local temperature of the drilling area will increase sharply, causing the tiles to crack. Therefore, during the drilling process, it is best to spray water on the drilling area and cool down the drilling area.
▋How to deal with polished tiles that are easily broken when cut?
Because of the high hardness of polished tiles, when using a cutting machine, the temperature of the cutting part of the tiles changes drastically, coupled with the lack of proficiency of the workers, causing the tiles to crack. Therefore, when cutting ceramic tiles, you need to find professional cutters and use professional cutting equipment to ensure the cutting quality. At the same time, when cutting, spray water on the cutting part to reduce the temperature of the cutting part.
▋How to repair polished tiles that fall off?
If the mortar is not loose and only the polished tiles fall off, you can scrape off the mortar on the tiles, mix a little cement into 107 glue to make a paste, apply a thin layer evenly on the back of the polished tiles, and press it later Polished tiles will stick firmly. If the mortar falls off together with the polished tiles, first lightly dig some pits on the original foundation surface, then re-lay them with mortar mixed with 107 glue, and then press the fallen polished tiles up until the mortar hardens.
▋How to maintain polished tiles?
1. Mildew spots formed by mildew of ink and anti-fouling wax can be removed with bleach. When using, you only need to apply bleach to the stained area and soak it for a few minutes to wipe it clean;
2. Use bleach to remove tea stains, fruit stains, coffee sauce vinegar, leather shoe prints and other stains. Soak them for 20-30 minutes before wiping them off with a cloth. Some stains that have penetrated into the brick for a long time require a few soaking times. hours;
3. Method for removing glue hammer marks: first soak in 20%-40% sodium hydroxide (NaOH) solution for 24 hours and then wipe clean with a cloth, then soak in 30%-50% hydrochloric acid (Hcl) solution for 30 minutes , then wipe it clean with a cloth;
4. Use alkaline cleaners or organic solvents (acetone, triethylene) to remove paint, oil stains, oily markers, and surface antifouling wax layers;
5. Use hydrochloric acid or phosphoric acid solution to remove cement, scale, scale and rust spots, and wipe it several times;
6. Lime scale can be removed with acidic detergent. 7. Ice cream can be removed with alkaline detergent. Just be careful and attentive when cleaning;
8. If the polished tiles are used for a long time and have serious scratches and stains on the surface, you can also hire a professional cleaning company to polish, wax and renovate them.
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