What is the best method for applying slab concrete caulk to ensure a durable and long-lasting seal?

The best method for applying slab concrete caulk to ensure a durable and long-lasting seal is to thoroughly clean and dry the area before application, use a caulk gun for precise and even application, and make sure to fill the entire crack or gap with the caulk. Smooth out the caulk with a putty knife or your finger for a neat finish.