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Best Available Control Technology (BACT ) Guideline 4.8.1
Last Update: 12/7/2006


Fiberglass Boat Manufacturing Operation (< 120 gallons/day and < 25 tons VOC per year)
Pollutant Achieved in Practice or in the SIP Technologically Feasible Alternate Basic Equipment
PM10for gelcoats: air assisted airless application (or equivalent) and an enclosed spray booth with filters rated at 66% or greater PM10 control efficiency. For resins, any of the following application methods: 1) non-atomized spray technique (such as the use of fluid impingement technology (FIT) spray guns), 2) Flowcoaters, 3) Pressure-fed rollers, 4) resin impregnators, 5) hand lay-up, 6) or any equivalent method as approved by the APCOfor gelcoats: air assisted airless application (or equivalent) and an enclosed spray both with filters rated at 95% or greater PM10 control efficiency
VOCfor gelcoats: air assisted airless application (or equivalent) and material VOC content (by weight) less than or equal to: - pigmented gelcoats: 33% - clear gelcoats: 48% - tooling gelcoats: 40% for resins, any of the following application methods: 1) non-atomized spray technique (such as the use of fluid impingement technology (FIT) spray guns), 2) flowcoaters, 3) pressure-fed rollers, 4) resin impregnators, 5) hand lay-up, or 6) any equivalent method as approved by the APCO; and materials with a material VOC content (by weight) less than or equal to: - resins: 35% - tooling resins: 39% and the use of non-VOC containing cleaning solvents1. 98% total control efficiency (thermal/catalytic incineration and 100% capture) 2. 95% total control efficiency (carbon adsorption and 100% capture system) 3. 63.7% total control efficiency (thermal/catalytic incineration and hood vent with 65% capture) 4. 61.7% total control efficiency (carbon adsorption and hood vent with 65% capture)


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.