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Best Available Control Technology (BACT ) Guideline 4.3.15
Last Update: 11/4/2003


Dip Coating of Steel Joists
Pollutant Achieved in Practice or in the SIP Technologically Feasible Alternate Basic Equipment
VOCUse of coatings with a maximum VOC content of 3.32 lb/gal for coatings with a viscosity, as applied, of less than or equal to 45.6 centistokes at 78 F and an average dry-film thickness of less than or equal to 2.0 mils, or 2.8 lb/gal for coatings with a viscosity, as applied, of more than 45.6 centistokes at 78 For an average dry-film thickness of greater than 2.0 mils with no additional controlUse of Achieved-in-Practice BACT plus VOC capture and control system achieving overall control efficiency of at least 95% with one of the following: a) catalytic oxidizer, thermal oxidizer with low NOx burner, or thermal oxidizer and concentrator b) carbon adsorption c) refrigeration/condensation d) biofiltration


BACT is the most stringent control technique for the emissions unit and class of source. Control techniques that are not achieved in practice or contained in s a state implementation plan must be cost effective as well as feasible. Economic analysis to demonstrate cost effectiveness is requried for all determinations that are not achieved in practice or contained in an EPA approved State Implementation Plan.

This is a Summary Page for this Class of Source. For background information, see Permit Specific BACT Determinations on Details Page.