Formulation development typically involves an Initial Phase and a Testing Phase.
The Initial Phase begins by assessing the product’s requirements and, identifying the technology that is best suited to the project. All formulation technologies are considered during this initial phase, and factors assayed include the form or derivative of the core material, particle size, cost parameters, and production requirements.
If Wurster technology is required, the desired properties of the product are defined and the available options are identified. These options include a variety of coating materials, the formulation of each, and the processing requirements. Depending on the complexity of the application, other factors under consideration may include the following:
· Aqueous vs. solvent-based approaches
· Multiple vs. single-component coatings
· Multiple vs. single layers of coating
More than one formulation approach might provide similar properties. The final consideration is cost as well as function. This is where 35 years of Coating Place experience across a wide range of Wurster applications proves to be invaluable to you and your team.
Coating experiments designed to study the key parameters of the application are defined once the formulation has been identified in the Initial Phase. Such parameters might include layer thickness or coat level, process temperatures, spray rate, drying time, and solvent selection. These parameters may be studied for more than one formulation.
Coated materials might be tested at the time of the coating work or in more extensive field or laboratory experiments conducted in collaboration with Coating Place chemists and engineers.
Success or failure of each product or test is used to optimize the coating percentage, formulation or process for the application or define the need for additional experiments.