As a cosmetic formulator, selecting the right rheology modifier is crucial for achieving the desired texture, stability, and performance in your products. Carbomers, particularly Carbomer 940 and Carbomer 980, are widely recognized for their exceptional thickening and gelling capabilities. Understanding their nuances can help you optimize your formulations and ensure a superior end-product. As a leading manufacturer of cosmetic ingredients, we provide insights into these vital components.

What are Carbomers?

Carbomers are synthetic high-molecular-weight polymers of acrylic acid. They are cross-linked to create a three-dimensional network that, when neutralized with a base, swells significantly in water or hydroalcoholic solutions to form clear gels. Their primary function is to act as rheology modifiers – substances that alter the flow properties of a formulation, commonly known as thickeners or gelling agents. Their efficiency at low dosages makes them a cost-effective choice for many cosmetic applications.

Carbomer 940 vs. Carbomer 980: Key Differences and Applications

While both Carbomer 940 and 980 are excellent rheology modifiers, subtle differences in their cross-linking and molecular structure can influence their performance. Both are highly efficient, providing excellent thickening, suspending, and stabilizing abilities. However, it's often noted that:

  • Carbomer 940 is generally characterized by its 'short flow' properties. This means it tends to produce gels with less pseudoplasticity (shear-thinning), leading to a more viscous and slightly stiffer feel. It is highly effective in creating clear gels, hydroalcoholic gels, and creams where a substantial viscosity build-up is desired. Many formulators seeking to buy Carbomer 940 appreciate its ability to create highly transparent and stable formulations.
  • Carbomer 980 also offers excellent thickening and suspending capabilities, often with a similar 'short flow' characteristic. The distinction between 940 and 980 can be nuanced, with some suppliers indicating slightly different viscosity profiles or particle sizes. For formulators looking for a versatile thickener with high clarity and good stability, either grade can be an excellent choice. As a reputable supplier in China, we ensure both grades meet stringent quality standards.

When selecting between Carbomer 940 and 980, consider your specific formulation needs regarding viscosity, desired flow properties, and final product texture. For instance, a manufacturer of hand sanitizers might opt for a grade that provides excellent clarity and quick thickening. For a rich cream, a slightly different viscosity profile might be preferred.

Formulation Guidelines for Optimal Performance

To achieve the best results when using Carbomer 940 or 980, follow these general guidelines:

  • Dispersion: Sprinkle the carbomer powder slowly and uniformly onto the surface of the liquid medium while stirring rapidly to prevent clumping. High shear should be applied carefully to avoid permanent viscosity loss.
  • Neutralization: Carbomers require neutralization, typically with an alkali like sodium hydroxide (NaOH), potassium hydroxide (KOH), or triethanolamine (TEA), to achieve full thickening. The ideal pH range for thickening is usually between 5.0 and 10.0.
  • Post-Neutralization: Avoid prolonged high-shear mixing after neutralization, as this can compromise the gel structure and lead to viscosity reduction.

Sourcing High-Quality Carbomer from a Trusted Manufacturer

As a dedicated cosmetic ingredient supplier, we understand the importance of sourcing reliable and high-performance raw materials. Our Carbomer 940 and 980 are manufactured to meet stringent cosmetic standards, offering excellent purity, viscosity, and clarity. We cater to businesses looking to buy cosmetic grade carbomer in bulk, providing competitive pricing and consistent supply. If you are looking for a dependable carbomer manufacturer in China, consider our offerings for your next personal care product development. Our team is ready to assist you in selecting the ideal rheology modifier for your needs.

Contact us today to inquire about purchasing Carbomer 940/980 and to request samples. Experience the difference quality ingredients make in your cosmetic formulations.