During surface preparation, scrub highly soiled areas with what type of brush?

To effectively clean highly soiled areas during surface preparation, a typewriter brush is particularly suited for the task. This type of brush features soft bristles, which allow for thorough cleaning without damaging delicate surfaces or equipment. Its design enables practitioners to access intricate spaces effectively while applying adequate pressure to remove dirt and contaminants.

The focus when using any cleaning tool is to balance agitation with the risk of surface damage. In avionics, where surfaces may be sensitive, the ability of the typewriter brush to dislodge contaminants without causing abrasion is a critical advantage. This makes it ideal for initial surface cleaning in preparation for further treatment, such as corrosion treatment or protective coating applications.

Other brushes, such as steel brushes, can be too abrasive and may scratch or damage the surface being treated. Fine bristle brushes, while gentler, may not provide enough scrubbing power for heavily soiled areas, and spongy materials lack the rigidity needed for effective scrubbing action. Thus, the typewriter brush is the preferred choice for efficiently achieving clean, prepared surfaces ready for subsequent processing.