Zinc stearate

Zinc stearate use for coatings and Paints

Zinc stearate use for coatings and Paints
Zinc stearate use for coatings and Paints
Zinc stearate can be used as a preservative and drying aid for coatings and paints, which can increase the durability and weather resistance of paints and paints. Zinc stearate is used in a wide range of coatings and paints around the world.

The main parameters of zinc stearate are as follows

Chemical formula: Zn(C18H35O2)2

Molecular weight: 631.57

Appearance: white powder

Melting point: 118-122°C

Solubility: insoluble in water, slightly soluble in ethanol, methanol, acetone and other organic solvents

Density: 1.095 g/cm3

Moisture: ≤0.5%

Free acid: ≤0.5%

Metal ion content: ≤10ppm

Volatile content: ≤0.5%

The CAS number of zinc stearate is: 557-05-1

It should be noted that the parameters of zinc stearate may vary due to factors such as different manufacturers and different batches, and the specific product specification shall prevail. When using zinc stearate, it should be used correctly according to the requirements of the product instructions to ensure the performance and quality of the product.


Usage and Dosagefor coatings and Paints

Zinc stearate is used as a preservative and drying aid for coatings and paints. The method and amount of use depend on the actual situation and product formulation. The following are some general suggestions for use:

How to use: Zinc stearate is usually added to coatings or Paints in powder form for use. Before adding, zinc stearate should be mixed evenly with solvent or other additives to better disperse in paint or paint. At the same time, reasonable adjustments should be made according to the product formula and the properties of zinc stearate to ensure the quality of paint or paint.

Dosage: The dosage of zinc stearate is usually between 0.5-5%, depending on factors such as the type of coatings or Paints, formula and use environment. It should be noted that excessive use of zinc stearate may affect the transparency and adhesion of the coating, so it should be used correctly according to the requirements of the product manual.

How to store zinc stearate?

Zinc stearate should be stored in a dry, ventilated, and cool place, avoiding direct sunlight and humid environments, to prevent moisture, caking, and decomposition.

Zinc stearate should be kept away from flammable and explosive materials such as fire source, heat source and oxidant, so as to avoid fire and explosion.

Zinc stearate should be stored separately from incompatible substances such as acidic substances, oxidizing agents and reducing agents to avoid reactions.

Zinc stearate should comply with relevant safety regulations and operating procedures during storage and use to prevent harm to the human body and the environment.

The storage conditions of zinc stearate should be checked regularly, and if any abnormality is found, it should be disposed of or replaced in time.

In conclusion, proper storage can guarantee the quality and performance of zinc stearate and ensure safe use.

Zinc stearate has broad application prospects as a preservative and drying aid for coatings and paints, and can improve the durability and weather resistance of coatings, but the specific usage method and dosage should be adjusted reasonably according to the actual situation. If you are looking for Zinc Stearate, we can be your most professional supplier.

How to transportation zinc stearate?

The transportation of zinc stearate for use in coatings and paints often requires compliance with specific shipping and storage rules to ensure product safety and quality. Here are some suggestions for using zinc stearate in coatings and paint delivery:

1. Packaging: zinc stearate is usually supplied in powder or granule form. During shipping, be sure to pack zinc stearate in an airtight container or bag to prevent leaks or moisture. Packaging materials should meet international transport standards, and must be marked with information such as the name of the product, hazardous properties (if applicable), batch number, and production date.

2. Labeling and marking: Clear labels and markings should be affixed on the packaging to indicate the nature and hazardous characteristics of the product. This helps transporters identify and handle the product and ensure it is stored and shipped in the correct manner.

3. Temperature control: zinc stearate should be protected from extreme temperatures during storage and transportation. Too high a temperature may cause the product to melt or agglomerate, while too low a temperature may affect its fluidity. Ensure that the product is transported under suitable temperature conditions.

4. Moisture-proof measures: zinc stearate is sensitive to moisture, so moisture-proof measures must be taken to prevent moisture absorption. This includes avoiding contact with water or high humidity, and using moisture-resistant packaging or desiccants.

5. Handling of Hazardous Substances: If zinc stearate is classified as a hazardous or controlled chemical, then relevant regulations and standards such as the United Nations Regulations on the Transport of Dangerous Goods (UNDG) must be followed. This may involve special packaging, labelling, documentation and reporting requirements.

6. Shipping method: Choose the appropriate shipping method, such as land, sea or air, depending on the shipping distance and the quantity of the product. Make sure the transport vehicle or container meets safety standards and that the driver or transport personnel are trained to understand the properties and hazards of the product.

7. Documents and Permits: Prepare the necessary documents and permits for the legal transportation of the product. This may include Safety Data Sheets (SDS), Dangerous Goods Shipping Certificates and Export/Import Licenses, with specific requirements varying by country.

8. Inventory Control: After receiving zinc stearate, make sure to store it in a dry, ventilated and light-proof warehouse to prevent the product from getting wet or being exposed to direct sunlight

9. Waste Disposal: If necessary, ensure proper disposal of zinc stearate waste and container to comply with environmental regulations and safety standards.

Most importantly, make sure to follow international, national and regional regulations and standards when transporting and storing zinc stearate to ensure product safety and compliance. In case of doubt, it is recommended to consult a professional transportation and chemical safety expert.


Q1: What is zinc stearate, and what is its role in coatings and paints?

A1: Zinc stearate is a white, powdery substance derived from stearic acid. In coatings and paints, it serves as a multifunctional additive. Its primary roles include acting as a lubricant, a release agent, a matting agent, and a flatting agent.

Q2: How does zinc stearate function as a lubricant in coatings and paints?

A2: Zinc stearate acts as an internal lubricant by reducing friction between pigment particles and the coating/paint substrate. This lubricating effect enhances the dispersion of pigments and fillers, making the formulation process smoother.

Q3: What is the role of zinc stearate as a release agent in coatings and paints?

A3: Zinc stearate acts as a release agent during the manufacturing process. It helps prevent coatings and paints from sticking to manufacturing equipment and molds. This is particularly important in the production of molded or extruded coatings and paints.

Q4: How does zinc stearate function as a matting agent in coatings and paints?

A4: Zinc stearate can be used as a matting agent to reduce the gloss or shine of coatings and paints. It achieves this by scattering light, creating a matte or satin finish. This is commonly used in architectural paints and wood coatings.

Q5: What is the difference between zinc stearate and other matting agents like silica or talc?

A5: Zinc stearate provides a unique combination of properties as a matting agent. It not only reduces gloss but also serves as a flow aid, which can improve the overall coating or paint formulation and application properties.

Q6: Is zinc stearate compatible with various types of coatings and paints?

A6: Yes, zinc stearate is generally compatible with a wide range of coating and paint formulations, including water-based, solvent-based, and powder coatings. However, compatibility may vary depending on specific formulations, so it's important to conduct compatibility testing.

Q7: Can zinc stearate affect the transparency or color of coatings and paints?

A7: Zinc stearate is typically white and can have a slight impact on the color or transparency of coatings and paints, especially when used in large quantities. Manufacturers often adjust the formulation to minimize any potential color or transparency changes.

Q8: Are there any environmental or health concerns associated with the use of zinc stearate in coatings and paints?

A8: Zinc stearate is considered safe for use in coatings and paints when used as intended. However, like any chemical substance, proper handling and disposal practices should be followed to minimize environmental and health risks.

Q9: Where can I purchase zinc stearate for use in coatings and paints?

A9: Zinc stearate can be purchased from us. It is available in various grades to suit different coating and paint applications.

These FAQs should provide you with a better understanding of zinc stearate and its applications in coatings and paints. If you have more specific questions or need further information, welcome to concult!

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Name: Jiese        time:2023-05-06 08:59:49
We are from Malaysia, we purchased 3 tons of Zinc stearate for paint, the test effect is very good.

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