Yes, a poor cleaning method can scratch or damage a module. Risk comes from bristle material, trapped grit, excessive pressure and dragging contamination across the glass—not simply from whether the tool is called a “solar brush.”
A soft brush can still trap sand. Rinse or remove loose abrasive material first when appropriate, keep the head clean and replace damaged bristles that can expose hard edges.
Module manufacturers commonly specify acceptable water, detergents and tools. If their instructions prohibit abrasive cleaning or certain chemicals, that guidance takes priority over a cleaning-tool advertisement.
For “Can Solar Cleaning Robots Scratch PV Modules?,” these three models give you concrete products to compare against the requirements above, instead of leaving the answer at theory.
Our strongest starting point because Soft bristles and Round brush head make it a practical reference point for tank size, process intensity and batch workflow.
A useful second comparison because 52 in. handle and Soft bristles make it a practical reference point for tank size, process intensity and batch workflow.
A contrasting third option because 65 in. reach and Soft bristles make it a practical reference point for tank size, process intensity and batch workflow.