Cresmer™ OD SOL FAQs: Inside our proprietary oil dispersion (OD) chassis

Q: What is Cresmer OD SOL?

Cresmer OD SOL is our proprietary oil dispersion chassis designed for developing a wide range of agrochemical OD formulations used in pesticide or herbicide applications. It functions as both a single chassis system and a built‑in adjuvant, simplifying the formulation development while delivering high performance and stability. With Cresmer OD SOL, formulators only need to add the active ingredient and a suitable rheology modifier to successfully complete a fully functional and stable OD formulation.

Image 1: Overview of the benefits of Cresmer OD SOL

Q: What type of formulations can be developed with Cresmer OD SOL?

Cresmer OD SOL is suitable for developing agrochemical pesticide oil dispersion formulations across different active ingredient classes. It works well with both pesticide active ingredients and micronutrients.

Q: How does Cresmer OD SOL simplify formulation development?

A ready-to-use chassis solution, formulators only need to incorporate the active ingredient and a rheology modifier to complete the system. This reduces development complexity, minimises inventory requirements and eliminates the need for multiple surfactant combinations, thereby enabling for a simplified and accelerated OD development process. Ten proven pesticide OD formulation recipes are readily available; find out more here.

Q: How does Cresmer OD SOL address current industry challenges?

As a single, integrated chassis system with built-in adjuvant functionality, Cresmer OD SOL is engineered for effective and efficient oil dispersion formulation development. It helps formulators successfully develop robust formulations that maintain a high level of physical stability and consistent performance across a wide temperature range (5°C to 50°C).

Common long-term stability issues associated with OD formulations such as separation, sedimentation and thickening, as well as performance issues like creaming at the top or sedimentation at the bottom upon dilution in water, can easily be addressed by using Cresmer OD SOL.

Locally produced in India, the product also helps customers streamline raw material management and overcome supply chain complexities.

Q: Why choose Cresmer OD SOL over existing market equivalents?

Cresmer OD SOL offers the following benefits over others:

• An all-in-one OD chassis solution that remains stable across a wide range of storage conditions
• Compatible with different vegetable oils methyl esters, offering increased formulation flexibility
• Provides robust stability and superior performance
• Compatible with common hydrophobic rheology modifiers like fumed silica
• Locally manufactured in India, keeping the cost in line with market requirements while reducing the economic barrier to adopting this technology

Q: What regulatory compliance does Cresmer OD SOL meet?

Cresmer OD SOL is currently available across the APAC region, except for Australia. This agrochemical chassis was developed specifically for the Asian market, with a primary focus on India. Evaluation for expansion into additional global markets is underway.

In the meantime, interested customers can contact your local sales representative to confirm its availability in your country and/or to discuss how we can support your specific OD formulation development needs.

Q: What is the density of Cresmer OD SOL?

The density of Cresmer OD SOL is 0.9720 g/cm3.

Q: Which oil should be used for OD formulation with Cresmer OD SOL?

Formulators can use Cresmer OD SOL up to 100% w/w. For added flexibility, when an alternative oil is preferred, it is compatible with a wide range of vegetable oil methyl esters up to 50% w/w.

The recommended oils that can be used include:

• Methyl soyate
• Methyl oleate 
• Methyl erucate

This allows formulators to optimise performance by adjusting the inclusion levels and balancing the oil phase with other suitable oils as required.

Q: Why does the Penoxsulam 1.02% + Cyhalofop-butyl 5.10% OD formulation show a colour change in accelerated HST (54°C)?

Figure 1: Image of Penoxsulam 1.02% + Cyhalofop butyl 5.10% OD formulation after stability testing

In vegetable oil-based oil dispersion formulations, colour changes (e.g., from pale yellow to dark yellow/light brown) during accelerated heat stress testing are common. This typically happens due to the rapid natural oxidation of the oil phase or trace impurities within the system. This is primarily a cosmetic effect and does not adversely impact formulation stability, active ingredient degradation or overall performance.

To minimise colour change, formulators can consider using more stable oils or including antioxidants into the formulation development process.

Q: Can Cresmer OD SOL be customised for specific needs?

Yes. Cresmer OD SOL is compatible with many commonly used oil dispersion surfactants, providing greater flexibility in OD formulation development. Depending on the active ingredient and loading requirements, formulators may consider including additional surfactants to achieve the desired stability and performance.

For formulation-specific recommendations and optimisation support, contact our technical team for further guidance on your agrochemical formulation needs.

Q: Is particle size important for OD formulations and how is it measured?

Particle size is a critical parameter in oil dispersion formulations. Similar to suspension concentrate (SC) formulations, particle size plays a crucial role in formulation stability and suspensibility on dilution in water.

To accurately measure particle size in an OD formulation, use a suitable solvent/oil medium for dilution and not water. In an aqueous medium, the OD formulation forms an emulsion, and the resulting emulsion droplets can interfere with the active ingredient particles, leading to misreading on the particle size analyser.