TWI Paint-Painting Inspection Course Relating to Bgas Syllabus BGC PS-Q4
1 Painting Inspection Slides
Transcript of 1 Painting Inspection Slides
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PAINT FAULTS, BITTINESSPAINT FAULTS, BITTINESS
INCLUSIONS, INCLUSIONS, EITHER AIRBORN EITHER AIRBORN OR FROM THE OR FROM THE PAINT ITSELF. PAINT ITSELF. COULD BE COULD BE PARTIALLY CURED PARTIALLY CURED PAINT, OUT OF PAINT, OUT OF SHELF LIFE.SHELF LIFE.
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COATING FAULTS BLEEDINGCOATING FAULTS BLEEDING
THE SOLVENT THE SOLVENT FROM THE TOP FROM THE TOP COAT SOFTENS THE COAT SOFTENS THE UNDER LYING UNDER LYING MATERIAL AND MATERIAL AND ALLOWS IT TO ALLOWS IT TO PASS INTO AND PASS INTO AND THROUGH THE THROUGH THE LAYER, CAUSING LAYER, CAUSING DISCOLOURATION. DISCOLOURATION. BROWN FOR BROWN FOR BITUMEN, YELLOW BITUMEN, YELLOW FOR COAL TARS.FOR COAL TARS.
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COATING FAULTS BLISTERINGCOATING FAULTS BLISTERING
BLISTERS CAN BE FILLED WITH GAS, BLISTERS CAN BE FILLED WITH GAS, LIQUID OR CRYSTALSLIQUID OR CRYSTALS
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COATING FAULTS CHALKINGCOATING FAULTS CHALKING
DEGRADATION OF A DEGRADATION OF A BINDER DUE TO BINDER DUE TO DISRUPTIVE DISRUPTIVE FACTORS IN THE FACTORS IN THE ENVIRONMENTENVIRONMENT
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COATING FAULTS CISSINGCOATING FAULTS CISSING
CAUSED BY CAUSED BY INADEQUATE INADEQUATE SURFACE SURFACE PREPARATION.PREPARATION.
A DIFFERENCE IN A DIFFERENCE IN SURFACE ENERGY SURFACE ENERGY CAUSES LOCAL LACK CAUSES LOCAL LACK OF ADHESION.OF ADHESION.
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COATING FAULTS CRACKINGCOATING FAULTS CRACKING
COATING AGE AND COATING AGE AND DIFFERENTIAL DIFFERENTIAL EXPANSIONEXPANSION
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COATING FAULTS CRATERINGCOATING FAULTS CRATERING
BOWL SHAPED BOWL SHAPED DEPRESSIONS. DEPRESSIONS. CAUSED BY ESCAPING CAUSED BY ESCAPING SOLVENT OR GASES. SOLVENT OR GASES. PAINT IS OF TOO LOW PAINT IS OF TOO LOW A VISCOSITY TO FLOW A VISCOSITY TO FLOW AND FILL THE AND FILL THE DEPRESSIONSDEPRESSIONS
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COATING FAULTS CURTAINS, SAGS, RUNS AND COATING FAULTS CURTAINS, SAGS, RUNS AND TEARSTEARS
CAUSED BY OVER CAUSED BY OVER APPLICATION. REMOVE APPLICATION. REMOVE OFFENDING EXCESS OFFENDING EXCESS MATERIAL, LIGHTLY MATERIAL, LIGHTLY ABRADE, RECOAT.ABRADE, RECOAT.
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COATING FAULTS FLAKINGCOATING FAULTS FLAKING
MATERIAL MATERIAL PROGRESSIVELY PROGRESSIVELY GETS BRITTLE GETS BRITTLE WITH AGE, WITH AGE, CRACKS AND CRACKS AND BEGINS TO BEGINS TO DETACHDETACH
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COATING FAULTS HOLIDAYSCOATING FAULTS HOLIDAYS
DEFINED AS DEFINED AS BEING :- A VOID, A BEING :- A VOID, A MISS, OR AN MISS, OR AN UNCOATED AREAUNCOATED AREA
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COATING FAULTS LIFTINGCOATING FAULTS LIFTING
CAUSED BY SOLVENT STRENGTH AND ALSO CAUSED BY SOLVENT STRENGTH AND ALSO LACK OF OBSERVANCE OF STATED LACK OF OBSERVANCE OF STATED
OVERCOATING TIMEOVERCOATING TIME
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ORANGE PEELORANGE PEEL
SIMILAR SIMILAR APPEARANCE TO A APPEARANCE TO A
CITRUS FRUIT SKINCITRUS FRUIT SKIN
CAUSED BY PAINT CAUSED BY PAINT VISCOSITY VISCOSITY
PROBLEMS OR BY PROBLEMS OR BY APPLICATOR APPLICATOR TECHNIQUETECHNIQUE
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COATING FAULTS ROPINESSCOATING FAULTS ROPINESS
BRUSHMARKSBRUSHMARKS
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ALGAE AND MOULD GROWTHALGAE AND MOULD GROWTH
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COATING FAULTS WRINKLING AND COATING FAULTS WRINKLING AND RIVELLINGRIVELLING
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QUANTITITIVE TESTS FOR HYGROSCOPIC SALTS
MERKOQUANT TEST
BRESLE SAMPLE PATCH
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SALTS DETECTION, BRESLE SAMPLE PATCH KITSALTS DETECTION, BRESLE SAMPLE PATCH KIT
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COLOUR MUNSELL AND BS COLOUR MUNSELL AND BS 48004800L= LUMINANCE, CHROMAL= LUMINANCE, CHROMA
a= FROM GREEN TO REDa= FROM GREEN TO RED
b= FROM BLUE TO YELLOWb= FROM BLUE TO YELLOW
YELLOW THROUGH GREEN ,BLUEYELLOW THROUGH GREEN ,BLUE
PURPLE, RED AND BACK TO PURPLE, RED AND BACK TO YELLOWYELLOW
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HEALTH AND SAFETY DRAGER TUBE AND HEALTH AND SAFETY DRAGER TUBE AND BELLOWSBELLOWS
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RUST GRADES
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RUST GRADES
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BLASTING GRADES A Sa 2.5 and Sa 3
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BLASTING GRADES B Sa 1 and Sa 2
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BLASTING GRADES B Sa 2.5 and Sa 3
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BLASTING GRADES, COMPARISONS
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BLASTING GRADES C Sa 1 and Sa 2
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BLASTING GRADES C Sa 2.5 and Sa 3
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BLASTING GRADES D Sa 1 and Sa 2
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BLASTING GRADES D Sa 2.5 and Sa 3
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SURFACE PROFILE ASSESSMENT
SURFACE COMPARATOR TO BS 7079 Pt C, ISO 8503
SHOT BLAST COMPARATOR. NOT TO BE USED FOR SURFACE CLEANLINESS. ONLY FOR ASSESSMENT OF SHOT BLASTED SUBSTRATES. GRIT BLAST COMPARATOR CAN ALSO BE USED ON SUBSTRATES BLASTED WITH GRIT/SHOT MIX
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DRY ABRASIVE BLASTING
MEASURING PRESSURE AT THE NOZZLE
HYPODERMIC NEEDLE
GAUGE
INSERT THE NEEDLE THROUGH THE HOSE WITH THE NEEDLE TOWARDS THE NOZZLE, AT AN ANGLE OF APP.
45 DEGREES
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SURFACE PREPARATION
HAND AND POWER TOOL CLEANING B St 2 and St 3
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SURFACE PREPARATION
HAND AND POWER TOOL CLEANING C St 2 and St 3
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SURFACE PREPARATION
HAND AND POWER TOOL CLEANING D St 2 and St 3
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SURFACE PREPARATION FLAME CLEANING
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COPPER SLAG. COPPER SLAG.
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CONTAMINATED CONTAMINATED COPPER SLAG. COPPER SLAG.
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GARNET.GARNET.
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METALLIC GRITMETALLIC GRIT
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METALLIC SHOTMETALLIC SHOT
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METALLIC GRIT AND METALLIC GRIT AND SHOT MIX. SHOT MIX.
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WHIRLING HYGROMETERWHIRLING HYGROMETER
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DENSITYDENSITY THE DENSITY ( SG ) CUPTHE DENSITY ( SG ) CUP
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HEGMAN GRIND GAUGEHEGMAN GRIND GAUGE
FOR FINENESS OF GRIND, DEGREE OF FOR FINENESS OF GRIND, DEGREE OF DISPERSIONDISPERSION
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REPLICA TAPE AND DIAL MICROMETERREPLICA TAPE AND DIAL MICROMETER
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ROTATIONAL ROTATIONAL VISCOMETERVISCOMETER
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KREBS STORMER VISCOMETERKREBS STORMER VISCOMETER
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MECHANICAL THUMB TEST, THROUGH DRYINGMECHANICAL THUMB TEST, THROUGH DRYING
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FLOW VISCOSITYFLOW VISCOSITY
A FORD FLOW CUPA FORD FLOW CUP
FORD FLOW CUP IN ITS FORD FLOW CUP IN ITS RETORT AND SHOWING RETORT AND SHOWING THE 4mm DIA HOLETHE 4mm DIA HOLE
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VISCOSITY. FORD FLOW CUPVISCOSITY. FORD FLOW CUP
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WET FILM MEASUREMENTWET FILM MEASUREMENT
ECCENTRIC WHEELECCENTRIC WHEEL
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WET FILM THICKNESS MEASUREMENTWET FILM THICKNESS MEASUREMENT
COMB GAUGESCOMB GAUGES
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ADHESION TESTS CROSS CUT ( CROSS HATCH ) ADHESION TESTS CROSS CUT ( CROSS HATCH ) TEST SPECIAL CUTTER TOOLTEST SPECIAL CUTTER TOOL
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DESTRUCTIVE TEST GAUGES. THE SABERG TEST DESTRUCTIVE TEST GAUGES. THE SABERG TEST DRILLDRILL
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DFT MEASUREMENTS ELECTRONIC GAUGESDFT MEASUREMENTS ELECTRONIC GAUGES
ELECTROPHYSIELECTROPHYSICC
MINI TESTMINI TEST
THE EXACTOTHE EXACTOELCOMETERELCOMETER
456456
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DRY FILM THICKNESS MEASUREMENT, DRY FILM THICKNESS MEASUREMENT, MAGNETIC.MAGNETIC.
THE TINSLEY PENCILTHE TINSLEY PENCIL
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DRY FILM THICKNESS MEASUREMENT, MAGNETIC,DRY FILM THICKNESS MEASUREMENT, MAGNETIC,
HORSESHOE GAUGEHORSESHOE GAUGE
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DRY FILM THICKNESS MEASUREMENTS, DRY FILM THICKNESS MEASUREMENTS, MAGNETICMAGNETIC
THE BANANA GAUGE MODEL 211THE BANANA GAUGE MODEL 211SCALE SCALE MOVES TO MOVES TO THE CURSERTHE CURSER
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DRY FILM THICKNESS MEASUREMENTDRY FILM THICKNESS MEASUREMENT
COLOUR CODED CALIBRATION SHIMSCOLOUR CODED CALIBRATION SHIMS
PURPLE PURPLE 25um25um
BLUE BLUE 50um50um
BROWN BROWN 125um125um
WHITE WHITE 250um250um
YELLOW YELLOW 500um500um
nominal valuesnominal values
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ADHESION TESTS THE HYDRAULIC ADHESION ADHESION TESTS THE HYDRAULIC ADHESION TESTERTESTER
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ADHESION TESTS THE DOLLY TESTADHESION TESTS THE DOLLY TEST
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DESTRUCTIVE TEST GAUGES THE P.I.G.DESTRUCTIVE TEST GAUGES THE P.I.G.
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OPACITY, THE PFUND CRYPTOMETEROPACITY, THE PFUND CRYPTOMETER
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HIDING POWER CHARTS AND ADJUSTABLE HIDING POWER CHARTS AND ADJUSTABLE APPLICATORAPPLICATOR
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FLEXIBILITY TEST CONICAL MANDRELFLEXIBILITY TEST CONICAL MANDREL
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WOLFF- WILBORN PENCIL SCRATCH TESTWOLFF- WILBORN PENCIL SCRATCH TEST
USES THE PENCIL USES THE PENCIL HARDNESS HARDNESS RATING.RATING.