A protective barrier used during the application of coatings via pressurized methods, particularly in painting, minimizes overspray and ensures a defined application area. This barrier, often constructed from materials like plastic, cardboard, or metal, is strategically positioned to prevent paint from reaching unintended surfaces. For example, when painting a window frame, a handheld barrier can protect the surrounding wall from errant spray.
The utilization of such barriers offers several advantages. It reduces material waste by containing the spray pattern. It saves time and effort by decreasing the need for extensive cleanup and masking. Historically, improvised solutions were employed; however, specialized tools have emerged, offering improved precision and ergonomics. This evolution reflects a growing emphasis on efficiency and environmental responsibility in painting practices.