Painting and Coating of Painting and Coating of PlasticsPlastics

Aleaha RiceAleaha RiceErica MongeraErica Mongera

Vince GalloVince GalloPenn State BehrendPenn State Behrend

PurposePurpose

DecorationDecorationMatch Between Adjacent Plastic and Non Match Between Adjacent Plastic and Non

PlasticPlasticFunctionalityFunctionality

OutlineOutline

IntroductionIntroductionBackground & TheoryBackground & TheoryPreparationPreparationTypes of PaintsTypes of PaintsTechniquesTechniquesExamplesExamplesConclusionConclusion

IntroductionIntroduction

Successful PaintingSuccessful PaintingProperties of the SubstrateProperties of the SubstrateProperties of the Paint or CoatingProperties of the Paint or CoatingApplication ProcessApplication ProcessEnd Use Application and EnvironmentEnd Use Application and Environment

Theory & BackgroundTheory & Background

Advantages of CoatingAdvantages of CoatingAbrasion ResistanceAbrasion ResistanceChemical ResistanceChemical ResistanceCovers Surface ImperfectionsCovers Surface ImperfectionsUniformity of FinishUniformity of FinishHigh or Low GlossesHigh or Low GlossesVariety of ColorsVariety of Colors

Theory & Background (cont)Theory & Background (cont)

Disadvantages of CoatingDisadvantages of CoatingLimited to Size of Part Limited to Size of Part Fire HazardsFire HazardsPollutionPollution

Theory & Background (cont)Theory & Background (cont)

Advantages of PaintingAdvantages of PaintingSmooth FinishSmooth FinishDurabilityDurabilityProtective CoatingProtective CoatingVariety of ColorsVariety of Colors

Theory & Background (cont)Theory & Background (cont)

Disadvantages of PaintingDisadvantages of Painting Variety of PlasticsVariety of PlasticsAir Pollution (Solvent Based)Air Pollution (Solvent Based)Waste (Spray)Waste (Spray)

PreparationPreparation

Detergent CleaningDetergent CleaningRemoves Salts and OilsRemoves Salts and Oils

Lint-Free Gloves Lint-Free Gloves Destaticizing Air Blow-OffDestaticizing Air Blow-OffPainting Operation Inside “Clean Room”Painting Operation Inside “Clean Room”

Types of PaintsTypes of Paints

Multi-componentMulti-componentSolvent-BasedSolvent-BasedPowder CoatsPowder CoatsSoft PaintsSoft Paints

Types of Paints (cont)Types of Paints (cont)

Multi-componentMulti-componentEpoxy Paint SystemsEpoxy Paint Systems

Strong AdhesionStrong AdhesionHigh Temperature ResistanceHigh Temperature ResistanceGood Chemical ResistanceGood Chemical ResistanceVolatile EnvironmentVolatile Environment

PolyurethanesPolyurethanesAutomobile ApplicationsAutomobile ApplicationsRobust and FlexibleRobust and Flexible

Types of Paints (cont)Types of Paints (cont)

MulticomponentMulticomponentEnamelsEnamels

High Gloss SurfaceHigh Gloss Surface

WaterborneWaterborneConversion from Solvent to WaterConversion from Solvent to WaterLess DurableLess Durable

Types of Paints (cont)Types of Paints (cont)

MulticomponentMulticomponentAcrylicAcrylic

Water SolubleWater SolubleQuick DryingQuick DryingEnvironmentally SafeEnvironmentally Safe

LatexLatexAlternative to oil or solvent based paintsAlternative to oil or solvent based paintsStretchStretch

Types of Paints (cont)Types of Paints (cont)

Solvent BasedSolvent BasedMajority for Metal and Non-plastic SubstrateMajority for Metal and Non-plastic SubstrateEnvironmental ConcernsEnvironmental ConcernsSmoothest, Most Uniform CoatingSmoothest, Most Uniform CoatingGreatest Color ControlGreatest Color ControlCan be Applied by Brushing, Dipping, SprayCan be Applied by Brushing, Dipping, Spray

Types of Paints (cont) Types of Paints (cont)

Soft PaintsSoft PaintsSofter FeelSofter FeelAutomobile and Furniture IndustriesAutomobile and Furniture IndustriesAdded ThicknessAdded ThicknessBlend of Flexibility and ToughnessBlend of Flexibility and Toughness

Types of CoatingsTypes of Coatings

Powder CoatsPowder CoatsNo SolventsNo SolventsLimited Number of SystemsLimited Number of SystemsOversprayOversprayNon ToxicNon ToxicExtremely Tough & DurableExtremely Tough & DurableProtective BarrierProtective BarrierFurniture IndustryFurniture Industry

Types of Coatings (cont)Types of Coatings (cont)

Conformal CoatingsConformal CoatingsFunctionality Rather than DecorationFunctionality Rather than DecorationCircuit BoardsCircuit BoardsTemperature, Dust, Humidity ExtremesTemperature, Dust, Humidity ExtremesAcrylic, Polyurethane, Epoxy, SiliconeAcrylic, Polyurethane, Epoxy, Silicone

TechniquesTechniques

SpraySprayElectrostaticElectrostatic

Silk-ScreeningSilk-ScreeningDip CoatingDip CoatingFlow CoatingFlow Coating

Techniques (cont)Techniques (cont)

SpraySprayReduces Paint to DropletsReduces Paint to DropletsNot Foreign MatterNot Foreign MatterAir is the PropellantAir is the PropellantAirless PaintingAirless Painting

The Nozzle Tends to Wear Faster in GunThe Nozzle Tends to Wear Faster in Gun Creates Tails in PatternCreates Tails in Pattern

Techniques (cont)Techniques (cont)

ElectrostaticElectrostaticAir or AirlessAir or AirlessCharged ParticlesCharged ParticlesOverspray and WasteOverspray and WastePlated or MetallizedPlated or Metallized

Techniques (cont)Techniques (cont)

Silk-ScreeningSilk-ScreeningHigh Quality Print ImagesHigh Quality Print ImagesEliminates the Need for Backup Tooling Eliminates the Need for Backup Tooling Well Ventilated - Solvent Based Paints Well Ventilated - Solvent Based Paints Not Recommended on Textured SurfacesNot Recommended on Textured Surfaces

Techniques (cont)Techniques (cont)

Dip CoatingDip CoatingPaint BathPaint Bath Low CostLow CostCleaning and Cleaning and

PreparationPreparationLittle WasteLittle Waste

Techniques (cont)Techniques (cont)

Flow CoatingFlow CoatingOpposite of Dip CoatingOpposite of Dip CoatingPoured Over SubstratePoured Over SubstrateLittle WasteLittle WasteLow Cost EquipmentLow Cost EquipmentProper Cleaning & Preparation is RequiredProper Cleaning & Preparation is Required

ExamplesExamples

Spray PaintSpray Paint Motorcycle PartMotorcycle Part

Examples (cont)Examples (cont)

Conformal CoatingConformal Coating Electrical Circuit BoardElectrical Circuit Board

Examples (cont)Examples (cont)

Silk-ScreeningSilk-Screening

Examples (cont)Examples (cont)

Dip CoatingDip Coating

ConclusionConclusion

PreparationPreparationAir Pollution ConcernAir Pollution ConcernEndless Capabilities Endless Capabilities