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FAQ

07

2023-10

MG4P-480 Multi-Functional Floor Grinding Machine

The MTQ-branded MG4P-YY-580 Multi-Functional Floor Grinder meets the needs of professional users seeking enhanced efficiency in large-scale industrial floor grinding applications, offering exceptional value for money. It’s ideal for tasks such as grinding and renovating marble, granite, and concrete floors. Product Features: 1. Sleek, modern design that’s both stylish and elegant. 2. Foldable handle with an integrated central control panel, ensuring convenient, safe, and ergonomic operation—plus easy handle movement for added convenience. 3. High-power (7.5 HP) variable-frequency motor designed to withstand the demands of prolonged, heavy-duty industrial floor grinding. 4. Automatic pressure-adjustment control system, tailored to meet the requirements of various construction processes. 5. Optional dust extraction system available, enabling seamless switching between dry and wet working modes. 6. Twist-style water-release switch paired with a central water-dispensing system on the grinding disc, effectively minimizing secondary wear of abrasive materials and preventing unsightly grinding marks during operation—boosting productivity significantly. 7. Versatile grinding discs compatible with a wide range of abrasive materials, helping you cut down on your overall project costs. For more information, please call Guangzhou Qingqinyu Environmental Technology Co., Ltd. We’re here to serve you with our utmost dedication! [Visit us online at](http://www.qingqinyu.com)

2023-10-07

27

2023-09

What are the performance differences between epoxy flooring and cured flooring?

Here's the translation: --- The performance comparison between epoxy flooring and hardened concrete flooring is as follows: 1. **Mechanical Performance Comparison**: Overall, epoxy flooring significantly outperforms hardened concrete flooring in terms of mechanical properties. It has inferior wear resistance, compressive strength, and impact resistance. In environments with high-intensity operations, epoxy floors are prone to peeling, scratching, and other surface issues. Additionally, black marks left by forklifts can be particularly difficult to remove. In contrast, hardened concrete flooring excels in mechanical durability, boasting a Mohs hardness rating as high as 7 to 8. This makes it virtually impervious to most impacts and heavy rolling loads, ensuring that even common industrial vehicles like trailers and forklifts leave no trace—no scratches or tire marks—on the hardened surface. 2. **Chemical Performance Comparison**: Epoxy flooring exhibits excellent chemical stability, making it one of the most effective barrier materials available. It provides long-lasting protection against water, acids, alkalis, gasoline, lubricants, and other corrosive substances. While hardened concrete flooring also offers strong chemical resistance, its ability to block off contaminants like water, acids, alkalis, oils, juices, stains, and algae is slightly weaker compared to epoxy. However, acidic substances still need prompt cleaning, as prolonged exposure may lead to visible marks over time. 3. **Waterproofing, Moisture Resistance, and Seepage Prevention**: Thanks to its robust barrier properties, epoxy flooring delivers outstanding waterproofing, moisture resistance, and seepage prevention, making it a superior choice for traditional waterproof flooring applications. That said, once scratched, its waterproof capabilities will sharply decline. On the other hand, hardened concrete flooring isn’t technically classified as a waterproof material, yet it still boasts impressive moisture-proof and seepage-resistant qualities. Industry standards often measure its waterproofing ability using the 24-hour penetration reduction test, and data from such tests clearly demonstrate its remarkable water-repellent performance. 4. **Aesthetic Appeal**: Epoxy flooring utilizes epoxy resin—a paint-like material—resulting in a glossy, highly reflective finish that exudes a sleek, polished look. In contrast, hardened concrete flooring incorporates advanced polishing techniques, creating a striking mirror-like surface that conveys a solid, durable aesthetic. 5. **Safety Comparison**: In terms of environmental safety, hardened concrete flooring is made from non-toxic, water-based inorganic materials, making it entirely safe for residential use without any health concerns. Meanwhile, while epoxy resin itself is non-toxic, the curing agents used alongside it—including carcinogenic compounds like MDA, TDI, and MDI—are hazardous and can linger within the epoxy coating, gradually releasing harmful fumes over time. Regarding fire safety, hardened concrete flooring achieves the highest fire-resistance rating—Class A1—making it highly resistant to flames under extreme conditions. In contrast, epoxy flooring lacks inherent fire-retardant properties and can easily ignite when exposed to high temperatures. As for static electricity control, certain specialized types of epoxy flooring—such as anti-static epoxy resins—can effectively prevent static buildup. However, hardened concrete flooring, when properly installed without additional epoxy coatings, can achieve antistatic properties simply through the application of conductive cement mortars during construction. 6. **Service Life**: The saying "it’s a double-edged sword" perfectly captures the trade-off in epoxy flooring: while its exceptional barrier properties make it incredibly durable, this same characteristic ultimately limits its longevity due to poor breathability. Rising groundwater vapor beneath the floor can easily cause bubbling, cracking, and delamination in epoxy systems. Typically, epoxy flooring lasts only 2 to 3 years, though lower-quality versions may degrade even faster, leading to higher replacement costs. In stark contrast, hardened concrete flooring boasts an impressively long service life of 20 to 30 years—or even longer under optimal maintenance conditions. In fact, with proper care, its lifespan can approach a near-permanent level, aligning seamlessly with the overall lifecycle of the building itself.

2023-09-27

26

2023-09

Flooring Machinery Repair and Maintenance

Floor grinding machines are widely used for roughening and smoothing uneven surfaces, removing sealants, paints, and old epoxy coatings from concrete floors, as well as for innovative surface treatments on various materials like resins and adhesives. After operating the floor grinding machine for a while, if you notice reduced power, you can loosen the base screws and adjust the belt tensioning screw accordingly. If the machine frequently shuts off automatically during operation, check whether the power cord is a standard 4-square-millimeter wire compliant with national regulations, and ensure that the cord is fully extended—never coiled together. Additionally, inspect the white connecting wire inside the overload/leakage protection switch; make sure it’s securely connected. If the belt remains tight but the motor spins while the grinding disc fails to rotate, it’s likely that the belt pulley has become loose. In this case, simply open the front cover and reinstall the belt pulley properly. If the machine exhibits noticeable vibrations, first verify that the rubber anti-vibration pads under the grinding disc haven’t come loose or cracked. If they’ve detached, add spacers and tighten them securely. If the pads are cracked, replace them immediately. Alternatively, vibrations may also result from an unbalanced grinding tool caused by one of the triangular plates beneath the grinding disc lacking its attached abrasive attachment. In such cases, promptly replace the grinding tool to eliminate the imbalance and prevent further vibration. While operating the machine, always ensure the grinding stone is firmly secured with screws to prevent it from flying off during use. Safety should always be your top priority!

2023-09-26

25

2023-09

Mitengqi floor grinding machine manufacturer explains the causes of floor bubbles.

Floor grinding machine manufacturers explain that blistering on epoxy floors most commonly occurs on the first floor or in basements, though it occasionally happens even on upper levels. Typically, these blisters become visible shortly after construction—some floors laid in the morning may already show bubbles by afternoon. The blisters start small but gradually grow larger over time, eventually stabilizing at a certain size. Higher temperatures significantly increase the likelihood of blister formation and accelerate the blistering process. Interestingly, the shapes and sizes of these blisters can vary widely: some reach diameters exceeding 1 meter, while others may rise to heights of 20 to 50 millimeters. Notably, the occurrence of blisters doesn’t seem strongly tied to the specific region where the flooring is installed. In the same area, some projects experience severe blistering, while others remain largely unaffected; similarly, within the same work team using identical materials, some surfaces develop blisters while others stay intact. This suggests that blistering is influenced by a combination of factors rather than a single cause. The issue of why blisters form is a major concern for both contractors and manufacturers. When a blister is carefully cut open, it’s revealed to contain either water or a yellowish, viscous liquid. Importantly, the epoxy layer has separated from the substrate below, leaving behind a honeycomb-like structure where the adhesive material originally bonding the two layers has been pulled apart. From a physics perspective, this phenomenon can be explained by the behavior of liquids in a sealed container: as the liquid evaporates, it reaches a state of saturation, creating a unique relationship between temperature and pressure along three distinct curves. According to floor grinding machine manufacturers, areas without blistering often indicate weaker adhesion between the epoxy layer and the substrate. Upon closer inspection of the contact points, technicians frequently discover regions where curing has failed entirely—typically due to residual moisture preventing the epoxy from fully hardening. But where exactly does this moisture come from? There are several primary sources: 1. The substrate itself, such as a cement-sand screed, which can hold up to around 12% moisture. Notably, the substrate’s maximum moisture content tends to exceed that of the screed layer. 2. Residual moisture trapped within other components of the epoxy mixture, which may not have fully evaporated during the mixing process. 3. Poorly executed bonding between the epoxy and the substrate during installation, leading to gaps or voids. Additionally, the inherent chemical activity of the epoxy itself might result in incomplete curing, leaving behind uncured residues or volatile gases that contribute to blister formation. 4. Moisture seeping upward from beneath the substrate, carried by underground dampness or rising capillary action.

2023-09-25

22

2023-09

Why should factory floors undergo cement floor hardening treatment?

To cut costs, many factories put their concrete floors directly into use after completion, without applying any special treatment. However, not long afterward, due to various factors—such as insufficient cement grade, improper maintenance, or frequent heavy vehicle traffic—the floors begin to develop issues. Initially, dust and sand appear; soon after, potholes start forming. These problems not only detract from the floor's aesthetic appeal but also compromise its functionality. At this point, hiring a flooring company can become quite troublesome and costly. Moreover, applying a floor hardener is both labor-intensive and expensive. Therefore, whether it’s a new or existing concrete floor, steel flooring should first undergo thorough treatment—including floor hardening and repair—to ensure long-lasting durability and performance. Concrete sealers and hardeners work by chemically reacting with substances in the concrete, creating a robust, crystalline structure that fills the capillary pores within the material. This process significantly enhances the strength and abrasion resistance of the concrete surface, effectively resolving the common issue of concrete floors becoming dusty and sandy over time. **Key Features:** - Low-cost and easy to apply, making it an economical solution for addressing dusting and sanding on concrete floors. - For those looking to transform the surface of a concrete floor into a brighter, harder, and more durable finish, combining a concrete sealer with floor polishing equipment offers an ideal approach. This method not only prevents dusting and sanding but also dramatically increases the hardness of the concrete, boosting its ability to resist wear and heavy loads. - With proper application, the treated floor can maintain its exceptional quality for over 20 years, offering long-lasting durability and a marble-like sheen that deepens and intensifies with continued use.

2023-09-22

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