Do you have to use 99 percent alcohol or an activator for alcohol activated paints?

No, you don't have to use 99 percent alcohol for alcohol-activated paints; however, using a higher concentration, like 99 percent, is recommended for optimal results. An activator is not strictly necessary, but it can help enhance the flow and drying time of the paint. Generally, 70 percent alcohol can also work, but it may affect the paint's performance. Always refer to the specific product instructions for best practices.