What do sealants commonly contain that is a concern for indoor air quality?

Sealants are often made up of a variety of chemical compounds, and one significant concern for indoor air quality is the presence of volatile organic compounds (VOCs). VOCs are organic chemicals that can evaporate easily at room temperature, contributing to air pollution both indoors and outdoors. When sealants containing high levels of VOCs are applied, they can release these compounds into the air, leading to potential health risks, including respiratory issues, headaches, and other symptoms related to poor indoor air quality.

The presence of many VOCs in sealants can result in off-gassing, where the compounds continue to release into the air over time, affecting long-term air quality in enclosed spaces. This concern is especially pertinent in residential and commercial buildings where ventilation may be limited, making the management of indoor air pollutants critical for occupant health and well-being.

In contrast, water-based chemicals, low toxic substances, and natural compounds tend to be designed with lower environmental and health impacts, making them less of a concern in the context of indoor air quality compared to products rich in VOCs.