Carbomer polymers are a diverse family of synthetic acrylic acid polymers, each with unique characteristics that make them suitable for different applications. At NINGBO INNO PHARMCHEM CO.,LTD., we understand the importance of selecting the right Carbomer grade to achieve optimal product performance. This guide aims to demystify the common Carbomer grades and help you make informed decisions for your formulations.

The numbering system associated with Carbomers, such as 910, 934, 940, 941, and 980, primarily indicates their molecular weight and the specific cross-linking agents used in their synthesis. These variations directly influence their performance as thickening agents, their viscosity-building capabilities, and their rheological properties. Understanding these differences is key to harnessing the full potential of these versatile ingredients.

Carbomer 940 is one of the most widely used grades, renowned for its excellent thickening efficiency and ability to form clear, stable gels. Its properties make it a popular choice for a broad range of cosmetic and pharmaceutical applications, including lotions, creams, and topical gels. As a highly effective thickening agent, Carbomer 940 offers a good balance of viscosity and clarity.

Carbomer 934 and 934P are also commonly encountered grades. Carbomer 934 is known for its high viscosity and is often used in applications requiring significant thickening power, such as concentrated gels and suspensions. Carbomer 934P is a specific grade approved for pharmaceutical use, offering enhanced purity and regulatory compliance for drug formulations.

Carbomer 980 is another popular grade that offers similar thickening and stabilizing properties to Carbomer 940, often used interchangeably in many cosmetic formulations. It contributes to excellent suspension and emulsion stability, making products feel smooth and look consistent. The choice between Carbomer 940 and 980 can sometimes come down to specific rheological preferences or supplier availability.

When selecting a Carbomer, consider the desired final viscosity, the clarity required for the product, and the presence of electrolytes or other challenging ingredients in your formulation. For instance, some Carbomer grades offer better electrolyte tolerance, which is crucial when formulating with ingredients like certain surfactants or salts. As a synthetic acrylic acid polymer uses, each grade has nuances in how it interacts within a formulation.

The process of neutralization of carbomer also plays a role in grade selection. While all Carbomers require neutralization to thicken, some grades may react more readily or require specific neutralizing agents for optimal performance. NINGBO INNO PHARMCHEM CO.,LTD. provides technical support to help you select the most appropriate Carbomer grade and optimize its neutralization for your specific formulation needs.

In summary, the variety of Carbomer grades available offers formulators significant flexibility. Whether you require a high-viscosity agent, a clear gel former, or a pharmaceutical-grade excipient, there is a Carbomer suited to your needs. By understanding the distinctions between grades like Carbomer 940, 934, and 980, you can ensure your products achieve the desired texture, stability, and performance.