Which type of brush is advised for removing corrosion from magnesium parts?

Using a stiff, nonmetallic brush for removing corrosion from magnesium parts is recommended because it is gentle enough to avoid damaging the magnesium surface while still being effective in removing corrosion. Magnesium is a relatively soft metal, and using a harsh abrasive, like steel wire brushes or even some types of grit papers, could result in scratching or further surface degradation.

Nonmetallic brushes made from materials such as nylon or other polymers are designed to be tough on contaminants while being safe for the underlying surfaces, allowing for effective cleaning without increasing the risk of further corrosion. This makes them particularly suitable for magnesium, where maintaining the integrity of the surface is crucial to prevent further deterioration or compromising the structural integrity of the components.

High-grit carbon paper may be too abrasive and could lead to removing some of the base metal. Similarly, fine-grit aluminum oxide might be stronger than necessary for corrosion removal and could damage the magnesium. Therefore, the choice of a stiff, nonmetallic brush aligns perfectly with both safety and effectiveness in maintaining magnesium parts.