What is the most effective method for using mastic remover on concrete surfaces?

The most effective method for using mastic remover on concrete surfaces is to apply the remover according to the manufacturer's instructions, allow it to sit for the recommended amount of time to soften the mastic, and then use a scraper or brush to remove the softened mastic. It is important to wear protective gear and work in a well-ventilated area when using mastic remover.