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Iron oxide black cement brick fading problem analysis

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Iron oxide black cement brick fading problem analysis

2024-05-13 16:00:49

Iron oxide black pigment is an inorganic pigment with strong resistance to acid and alkali environment, used for a variety of coloring applications, suitable for construction, plastics, coatings and other fields, due to its good covering ability and excellent weather resistance, make it a popular choice for the construction industry and making bricks.

With the continuous penetration of the brick field, iron oxide black pigment has also brought a series of problems, such as fading, color difference, no color, etc. Among which the fading problem has attracted great attention, today we will explore the root cause of the fading problem.

For the fading problem of iron oxide black cement tiles, it is necessary to consider the characteristics of the material and the use environment. Since the iron oxide black pigment has good light resistance and chemical resistance, the material will not fade easily under proper use and maintenance.

It is made of iron oxide and other metal materials after high temperature oxidation, with high stability and good hiding power. Therefore, iron oxide black has a wide range of applications in different fields. Due to its excellent properties and wide range of applications, iron oxide black has become one of the most commonly used black pigments.

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Causes of fading problems

1.UV Exposure

One of the primary causes of color fading in cement bricks is exposure to ultraviolet (UV) rays. The sun’s rays can break down the chemical structure of pigments, leading to a gradual loss of color intensity. This effect is especially pronounced in outdoor environments where bricks are constantly exposed to sunlight.

2. Moisture Intrusion

Moisture penetration can significantly impact the color of cement bricks. Water can dissolve and wash away surface pigments, and repeated wetting and drying cycles can cause chemical reactions that alter the pigment’s appearance. Additionally, moisture can lead to efflorescence, a white, powdery deposit that can mask the original color of the bricks.

3. Poor Mixing Techniques

Inadequate mixing of pigments with cement can result in uneven color distribution, making some areas more susceptible to fading. Proper dispersion of pigments is crucial to achieving a consistent and lasting color.

4.Substandard Pigments

Using low-quality pigments can compromise the durability and stability of the color. Inferior pigments may lack resistance to environmental factors such as UV rays, moisture, and temperature fluctuations.

Solutions to Prevent Fading

1. Use High-Quality Pigments

Investing in high-quality, UV-resistant iron oxide pigments is essential for long-lasting color. Reputable manufacturers offer pigments that are specifically formulated to withstand environmental stressors. These pigments tend to have better lightfastness and resistance to fading.Xuantai pigment focus on pigment 22 years, manufacturers supply, support customized services.Go to the official website to learn more:XT pigment.

2. Optimize Mixing Processes

Ensure thorough and consistent mixing of pigments with cement. Using automated mixers can enhance the uniformity of the color. It's also beneficial to follow manufacturer guidelines on pigment-to-cement ratios to achieve optimal results.

3. Apply Protective Sealants

Applying a protective sealant to the surface of the bricks can provide an additional layer of defense against UV rays and moisture. Choose a breathable sealant that allows moisture vapor to escape, preventing issues such as trapped moisture and efflorescence. Regular resealing can extend the life of the protection.

4. Incorporate UV Stabilizers

Adding UV stabilizers to the cement mixture can improve the pigment's resistance to sunlight. These stabilizers work by absorbing or reflecting UV radiation, thus protecting the pigment from degradation.

5. Implement Regular Maintenance

Routine maintenance, including cleaning and resealing, is crucial for preserving the color of cement bricks. Remove any dirt, algae, or other contaminants that might accelerate the fading process. Regular inspections can also help identify potential issues early.

The above aspects are done to the extreme, we can prevent the fading problem of bricks, and it is easy to make high color bricks.

If you have other problems in making bricks or have purchase requirements of iron oxide pigments, click on our official website: XT pigment to obtain free samples.