Rubber and plastic industry

Zinc stearate use for coatings and Paints

Product Description:
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.