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Destroys VOC with the three T's of Destroys VOC with the three T's of combustion:combustion:
TimeTimeTemperatureTemperatureTurbulenceTurbulence
Achieves 75-99% reduction in the Achieves 75-99% reduction in the emissions entering the deviceemissions entering the device
ThTherermal mal OxiOxidatdationion
Direct Flame vs. CatalyticDirect Flame vs. Catalytic
•Capital CostsCapital Costs•Operating Cost (auxiliary fuel)Operating Cost (auxiliary fuel)•Operating TemperatureOperating Temperature
Slow Catalyst PoisonsSlow Catalyst Poisons
IronTinSilicon
HalogensSulfurZinc Phosphorous
LeadArsenicAntimonyMercuryBismuth
Reversible Catalyst Inhibitors
Fast ActingCatalyst Poisons
I bought the equipment. Why does it still smell?
Catalysts are Subject to:Catalysts are Subject to:
Thermal Aging - Heat Cycles Cause the Thermal Aging - Heat Cycles Cause the Metal to Recrystallize in Metal to Recrystallize in an Ineffective Form an Ineffective Form
Burnout - Burnout - Excessive Heat "Boils" Excessive Heat "Boils" the Metal off the the Metal off the
SubstrateSubstrate
Gumming - Surface Area is Covered Gumming - Surface Area is Covered by by
Heavy Organics From Heavy Organics From Paint Paint
or Fuel Oil or Fuel Oil
Check Incinerators For:Check Incinerators For:
•Auxiliary Fuel FlowAuxiliary Fuel Flow
•Gas Flow from Booth to StackGas Flow from Booth to Stack
•Outlet Temp. Higher than Inlet Temp.Outlet Temp. Higher than Inlet Temp.
•Inlet VOC Concentration Higher than Inlet VOC Concentration Higher than Outlet VOC ConcentrationOutlet VOC Concentration
•Bypass Stack EmissionsBypass Stack Emissions
Electromagnetically attracts Electromagnetically attracts
VOC onto activated carbonVOC onto activated carbon
Achieves 40 to 65% Achieves 40 to 65%
reduction reduction
Carbon AdsorptionCarbon Adsorption
Data Collection Requirements
grams of VOC/ltr of coating Auto Ref
grams of VOC / gram of solids applied
Wood finishing
Reactivity based rule Aerosols
Architectural (planned)
Cup Liners
• Two manufacturers
• Disposable• Save gun
cleaning emissions (1.5 Pints reduced to 2 ozs)
• Not yet required by anyone.
Automotive RequirementsAutomotive Requirements
Specific Low ROC Limits for:Specific Low ROC Limits for:
Group I Vehicle CoatingsGroup I Vehicle Coatings
Group II Vehicle CoatingsGroup II Vehicle Coatings
Group I Vehicles MeansGroup I Vehicles Means
Passenger Cars, Light andPassenger Cars, Light andMedium Sized Trucks and Vans, Medium Sized Trucks and Vans, Large/Heavy Duty Truck Cabs Large/Heavy Duty Truck Cabs andand Chassis, Chassis,and Motorcyclesand Motorcycles
Group II Vehicles Means:Group II Vehicles Means:
Public Transit Buses andPublic Transit Buses and Mobile EquipmentMobile Equipment
Automotive RequirementsAutomotive Requirements
•Specific District Approval Specific District Approval Required Required for "Extreme Performance" for "Extreme Performance" ExemptionExemption•Spray Equipment Must be Cleaned Spray Equipment Must be Cleaned in in an Enclosed Systeman Enclosed System•ROC Contaminated Waste Stored ROC Contaminated Waste Stored in in Closed ContainersClosed Containers
Districts With Auto Districts With Auto Refinishing RulesRefinishing Rules
Bay Area AQMDBay Area AQMD 8-458-45Santa Barbara Co. APCDSanta Barbara Co. APCD 339339South Coast AQMDSouth Coast AQMD 11511151San Joaquin Unified APCDSan Joaquin Unified APCD 46024602
(p300-1)
Yolo-Solano 2.26Placer 234Sacramento 459
Final ROC Limits for Final ROC Limits for Group II Coatings WhereGroup II Coatings WhereColor Match is not RequiredColor Match is not Required
CoatingCoating ROC (gm/ltr (lb/gal))ROC (gm/ltr (lb/gal))
Pretreatment Wash PrimersPretreatment Wash Primers 780 (6.5)780 (6.5)PrecoatPrecoat 600 (6.0)600 (6.0)PrimerPrimer 250 (2.1)250 (2.1)TopCoatTopCoat 420 (3.5)420 (3.5)Metallic TopCoatMetallic TopCoat 420 (3.5)420 (3.5)Extreme PerformanceExtreme Performance 420 (3.5)420 (3.5)CamouflageCamouflage 420 (3.5)420 (3.5)
Final ROC Limits Final ROC Limits forfor Group I Coatings Group I Coatingsand Group II Color Matchesand Group II Color Matches
ROC SCAQMDROC SCAQMDCoatingCoating gm/ltr (lb/gal) 1998 gm/ltr (lb/gal) 1998
Pretreatment Wash PrimersPretreatment Wash Primers 780 (6.5)780 (6.5)PrecoatPrecoat 600 (5.0)600 (5.0)Primer/ Primer SurfacerPrimer/ Primer Surfacer 250 (2.1)250 (2.1)Primer SealerPrimer Sealer 420 (3.5) 250420 (3.5) 250TopCoatTopCoat 420 (3.5) 340420 (3.5) 340Metallic TopCoatMetallic TopCoat 520 (4.3) 340520 (4.3) 340Multi stageMulti stage 540 (5.4) 340540 (5.4) 340
Air Toxic Control Measure
Adopted in 2002 to remove Cr6 and Cadmium from all formulations
For information on For information on Waterborne solutions:Waterborne solutions:
Waterweb:Waterweb:
http:/www.waterweb.comhttp:/www.waterweb.com
or call or call
(602) 948-3555(602) 948-3555
Federal MACT due Federal MACT due in 2000in 2000
Alternative Control Techniques Alternative Control Techniques Document availableDocument availableApril 1994April 1994EPA 453/R-94-031EPA 453/R-94-031
Federal Register: September 11, 1998 (Volume 63, Number 176) Page 48806-48819Federal Register Online via GPO [wais.access.gpo.gov] [DOCID:fr11se98-23]-----------------------------------------------------------------------ENVIRONMENTAL PROTECTION AGENCY40 CFR Parts 9 and 59 National Volatile Organic Compound Emission Standards for Automobile Refinish EPA Final rule.-----------------------------------------------------------------------SUMMARY: pursuant to section 183(e) of the Clean Air Act (Act) The final rule is estimated to reduce VOC emissions by 31,900 tpy EFFECTIVE DATE: The effective date is September 11, 1998.
Federal VOC RuleFederal VOC Rule
Table 1.--VOC Content Standards for Automobile Refinish Coatings ------------------------------------------------------------------------ VOC Content Coating category grams/liter (pounds/gallon) ------------------------------------------------------------------------Pretreatment Wash Primer................................... 780 (6.5)Primer/Primer Surfacer..................................... 580 (4.8)Primer Sealer.............................................. 550 (4.6)Single/2-Stage Topcoats.................................... 600 (5.0)Topcoats of 3 or more stages............................... 630 (5.2)Multi-colored topcoats..................................... 680 (5.7)Specialty Coatings ......................................... 840 (7.0) ------------------------------------------------------------------------
HVLP Alternative
http://www.sherwin-automotive.com/products/ppt/squeegeePrime/index_files/frame.htm
Squeegee Prime by Sherwin-Williams
Air Drying an Acrylic Enamel
Henry V on Air Pollution Control
Here, at the turn of the century, air control is entering a
new time..Years from now your young
colleagues will ask about oh- nineThat time before things were so
clear.As you speak,
they will lean forward, straining to hear.
You’ll tell them how things wound up this way.
And they will hold their careers as
cheap, those who were not here,
To fight with us this day.
Flip/flop an angle sensitive characteristic of metalliccoatings and a color match challenge
Clearcoat:Clearcoat:
•A Colorless Binder Strong Enough to Serve as a Topcoat Without the Reinforcement of a Pigment Providing a Wet Look to an Earlier Colorcoat
•Today More Than 60% of Factory Finishes are Color/Clear
(p200-20)(p200-20)
Advantages of Color/Clear TechnologyAdvantages of Color/Clear Technology
•Maximum Luster and StrengthMaximum Luster and Strength
•Clearcoat Now Available in Low VOC Clearcoat Now Available in Low VOC Water-Borne FormulationWater-Borne Formulation
Color/clear metallic