While air pollution regulations have remained fairly static, equipment upgrades continue to minimize compliance woes.

By Kate Tomlinson and Assistant Editor

One particular application called for a pollution control system to destroy VOCs such as ketones, alcohols, acetates, glycols, and other organic vapor emissions. Depending on the line speed and the product width, these solvents could range from 10 percent lower explosive limit (LEL) to over 25 percent LEL. A majority of the time, the coating line is operated at 15 percent to 17 percent LEL.