Term: aeration

Aeration is the process of introducing air into a material or environment. In different contexts, it can have specific meanings:

• In painting and coatings: Aeration refers to the introduction or presence of air bubbles in paint or coating materials, which can occur during mixing or application. Excessive aeration can lead to defects such as pinholes, bubbles, or poor surface finish.

• In construction or concrete work: Aeration may refer to the intentional incorporation of air into concrete (air-entrained concrete) to improve its workability and resistance to freeze-thaw cycles.

• In general environmental or soil contexts: Aeration involves increasing the oxygen content in soil or water, often to promote healthy plant growth or improve water quality.

In the context of painting and surface preparation, controlling aeration is important to ensure a smooth, defect-free finish.