Understand Concrete Cleaning and Etching

What happens here

The presenter explains that thorough cleaning of the concrete is essential to ensure the new stain properly adheres and bonds to the surface. It is crucial to remove all dirt, debris, and existing loose stain. For etching the concrete, two methods are mentioned: using muriatic acid (especially for very smooth concrete) or using a specialized stripping nozzle with a high-pressure washer. The video demonstrates the latter, utilizing a 3000 PSI pressure washer with a stripping nozzle, which effectively etches the concrete surface.