How to Choose an Aerosol Can, Valve and Actuator

Three components, three different roles

The can is the body that contains the product. The valve opens and closes the dispensing system. The actuator is the button the user presses and through which the product is released. These components work together; naming one does not describe the complete packaging system.

In aerosol technology, whether the product is dispensed as a spray, foam or gel depends on the combination of formulation, propellant, valve and actuator. A different dispensing result therefore cannot be assessed by appearance alone.

Start with the application scenario

Before discussing packaging, write down how the product will be used. Will it cover a broad surface or be directed at one point? Will users press briefly or expect a longer application? Answer these project questions before selecting a ready-made component.

Describe the intended result instead of using terms such as strong spray or good nozzle. If you have a reference product, explain the application features you like rather than just naming its brand. This helps design, purchasing and production teams discuss the same target.

What information is needed to select a can?

Start with the planned filling volume, intended use and preference for printed or unprinted cans. If you want to use an existing can, include the supplier’s technical information and a sample in the assessment.

Do not assume that two visually similar packages are equivalent for your project. Ask how formulation and packaging compatibility will be checked, what information is needed and who will conduct the assessment. Settling the technical selection before finalising the commercial design can reduce later rework.

Why assess the valve and actuator together?

The valve controls the product outlet while the actuator helps form the spray pattern. Actuator selection relates to characteristics such as spray angle, output and fineness. The European Aerosol Federation highlights the importance of contents and intended use when selecting an actuator.

Instead of choosing a button simply because you like its appearance, ask for options that represent your intended application to be evaluated. Suitability cannot be confirmed from a catalogue photograph. Discuss which samples will be assessed and under what conditions with the manufacturer and component supplier.

Five questions for a component discussion

1. Which product expectations are these can, valve and actuator options intended to meet?
2. What information is needed to assess formulation and component compatibility?
3. How will the result be compared with the reference application?
4. What are the supply lead times and ordering conditions for the selected parts?
5. Which assessments need to be repeated if a component changes?

These questions do not replace a technical specification; they help define the discussion. Add the answers to your product brief so that packaging choices can be tracked alongside the quotation and production plan.

Plan packaging and filling together

Spreysan supports the supply of printed and unprinted aerosol cans, valves and actuators. Bring your product idea, existing components and intended application to the contract filling discussion together.

If you have not prepared a brief, start with the questions in our guide to quotation and production preparation. Read What Is an Aerosol? for an introduction to the different systems.