Question

Which of the following material is used for making dip tubes of aerosols?

• A. \( \text{Polyethylene} \)
• B. \( \text{Stainless steel} \)
• C. \( \text{Rubber} \)
• D. \( \text{Tin} \)

Hint:

Visualize an aerosol can – the tube that goes down into the liquid is usually a flexible plastic. Polyethylene fits this description.

Answer 1

The Correct Option is A

Dip tubes in aerosol containers are used to draw the product from the bottom of the can to the valve when the actuator is pressed. Polyethylene is the most common material used for making dip tubes due to its flexibility, chemical inertness, compatibility with a wide range of formulations, and cost-effectiveness. Stainless steel is used for some components of the aerosol valve but is generally too rigid and expensive for dip tubes. Rubber might be used for seals and gaskets but is not ideal for the main dip tube due to potential compatibility issues and lack of rigidity. Tin was historically used for aerosol cans themselves but is not the primary material for dip tubes in modern aerosols.