Glass bubbles, also known as glass microspheres or microballoons, are typically made from a chemically stable material such as soda-lime-borosilicate glass. This composition provides them with excellent chemical stability, making them resistant to most acids, bases, and solvents.
However, the chemical stability of glass bubbles can vary depending on their composition and surface treatment. Some glass bubbles are designed to be more chemically inert than others, depending on the intended application. For example, in some cases, a specific surface treatment may be applied to improve the compatibility of the glass bubbles with certain types of resins or fluids.
It's always advisable to check the manufacturer's specifications and recommendations for the specific type of glass bubble you intend to use to ensure its compatibility with the chemicals and conditions of your application.