brandon l. hunt technical team leader kansas sbeap: reducing solvent emissions seminar wichita, ks...
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Brandon L. HuntBrandon L. HuntTechnical Team LeaderTechnical Team Leader
Kansas SBEAP: Reducing Solvent Emissions SeminarKansas SBEAP: Reducing Solvent Emissions Seminar
Wichita, KSWichita, KS
March 10, 2009March 10, 2009
Reducing Solvent EmissionsReducing Solvent Emissions in in
Liquid CoatingsLiquid Coatings
Why is Solvent in Why is Solvent in Coatings?Coatings?
SolubilitySolubility Reduces viscosityReduces viscosity
Ease of applicationEase of application AtomizationAtomization PotlifePotlife
Film formationFilm formation Dry timeDry time
Sag resistanceSag resistance Flow/LevelFlow/Level
Low VOC/HAP TechnologyLow VOC/HAP Technology
Application TechnologyApplication Technology
Formulation/Process Formulation/Process TechniquesTechniques
Future TrendsFuture Trends
Avenues to Reducing Avenues to Reducing EmissionsEmissions
Low VOC/HAP TechnologyLow VOC/HAP Technology WaterborneWaterborne
Comparable durabilityComparable durability
Ability for very low VOCAbility for very low VOC
Proper solvents can make HAP-freeProper solvents can make HAP-free
Temperature and humidity dependentTemperature and humidity dependent
Must not be allowed to freezeMust not be allowed to freeze
Low VOC/HAP TechnologyLow VOC/HAP Technology High SolidsHigh Solids
Low VOC/HAP levelsLow VOC/HAP levels Up to 100% solidsUp to 100% solids Aesthetic limitations to higher solidsAesthetic limitations to higher solids
Exempt Solvents/Solvent SubstitutionExempt Solvents/Solvent Substitution Exempt solvents count as VOC in other Exempt solvents count as VOC in other
countriescountries Exempt reducer can reduce emissions but does not Exempt reducer can reduce emissions but does not
alter the compliance VOCalter the compliance VOC Few solvents are exempt; limited Few solvents are exempt; limited
solubilitysolubility Substitute solvents can achieve HAP compliance Substitute solvents can achieve HAP compliance
without significantly changing coatingwithout significantly changing coating
Low VOC/HAP TechnologyLow VOC/HAP Technology Energy Cure (UV/EB)Energy Cure (UV/EB)
Part size limitationsPart size limitations Curing equipment investmentCuring equipment investment Zero VOCZero VOC
Application TechnologyApplication Technology
Transfer EfficiencyTransfer Efficiency Electrostatic, HVLPElectrostatic, HVLP
VOC reductionVOC reduction Gas carrierGas carrier
Formulation/Process Formulation/Process TechniquesTechniques
Eliminate LayersEliminate Layers DTM TechnologyDTM Technology
Eliminate pretreatment or primerEliminate pretreatment or primer
Lower Dry Film ThicknessLower Dry Film Thickness Topcoat pigmentationTopcoat pigmentation
Improved hiding power of pigmentsImproved hiding power of pigments Higher performance resinsHigher performance resins
Solvent replacementSolvent replacement Extender pigmentsExtender pigments Reactive diluents/additivesReactive diluents/additives
Future TrendsFuture Trends
Eliminate LayersEliminate LayersSelf-Stratifying TechnologySelf-Stratifying Technology
Eliminate pretreatment or primerEliminate pretreatment or primer
Hybrid TechnologyHybrid TechnologyPowder/EB CurePowder/EB Cure
Other Green TechnologyOther Green Technology
Eliminate Cr (VI)Eliminate Cr (VI)Chrome Hazard Free TechnologyChrome Hazard Free Technology
PretreatmentsPretreatmentsPrimersPrimersSurfacersSurfacers
Sherwin-Williams Sherwin-Williams InitiativesInitiatives
We believe the optimal green coating should do two things: minimize the impact on air quality and deliver maximum performance. So we've developed the GreenSure symbol to help you identify the products that meet our highest green coating standards.
EcoVision is our company-wide commitment to look for and implement ways that reduce our impact on the environment. It's a shared and ongoing vision that all Sherwin-Williams employees can help achieve.
www.sherwin-williams.com/pro/green/
Websites for further Websites for further information:information:
www.sherwin-www.sherwin-williams.comwilliams.com
www.swaerospace.comwww.swaerospace.com
Thank you!!Thank you!!
AcknowledgementsAcknowledgements: : Kenneth Gabele Kenneth Gabele Manager, Sherwin-Williams Regulatory Information Manager, Sherwin-Williams Regulatory Information ServicesServicesHeidi Perez-Hernandez Heidi Perez-Hernandez Chemist, Sherwin-Williams Aerospace CoatingsChemist, Sherwin-Williams Aerospace Coatings