B.G.A.S.
PAINTING INSPECTION
SURFACE PREPARATION
DRY ABRASIVE BLASTING
ABRASIVES
COPPER SLAG.
EXPENDABLE.
USE
ONCE ONLY, IT
SHATTERS ON
IMPACT. IT IS
NON METALLIC
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B.G.A.S. PAINTING INSPECTION
SURFACE PREPARATION
DRY ABRASIVE BLASTING,
ABRASIVES
CONTAMINATED
COPPER SLAG.
MUST NOT BE
RE-USED.
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B.G.A.S. PAINTING INSPECTION
SURFACE PREPARATION
DRY ABRASIVE BLASTING,
ABRASIVES
GARNET. MINERAL,
CAN BE
EXPENDABLE
OR CAN BE RECYCLED , AS
DESIRED. MUST BE
CLEANSED BEFORE
RE-USE
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B.G.A.S. PAINTING INSPECTION
SURFACE PREPARATION
DRY ABRASIVE BLASTING
ABRASIVES
METALLIC GRIT.
MUST BE
RECYCLED
FOR ECONOMIC
REASONS. NOT
USED FOR SITE
WORK MUST BE
CLEANSED
BEFORE RE-USE
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B.G.A.S. PAINTING INSPECTION
DRY ABRASIVE BLASTING
ABRASIVES
METALLIC SHOT
USED IN
ENCLOSED
SYSTEMS,
NEEDS TO BE
CLEANSED
BEFORE RE-USE.
GRADUALLY
WEARS DOWN
CYCLE BY CYCLE.
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B.G.A.S. PAINTING INSPECTION
DRY ABRASIVE BLASTING
ABRASIVES
METALLIC GRIT AND
SHOT MIXED. RATIO
DEPENDS ON SPEC.
AS DOES THE
PARTICLE SIZES.
USED IN ENCLOSED
SYSTEMS. GRIT
CUTS THE PROFILE,
SHOT CONTROLS
THE PEAKS
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B.G.A.S. PAINTING INSPECTION
SURFACE PROFILE MEASUREMENT, DIAL
MICROMETER AND SURFACE REPLICA TAPE
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B.G.A.S PAINTING INSPECTION
RUST GRADES
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B.G.A.S. PAINTING INSPECTION
RUST GRADES
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B.G.A.S. PAINTING INSPECTION
BLASTING GRADES
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A Sa 2.5 and Sa 3
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B.G.A.S. PAINTING INSPECTION
BLASTING GRADES
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Sa 1 and Sa 2
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B.G.A.S. PAINTING INSPECTION
BLASTING GRADES
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B Sa 2.5 and Sa 3
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B.G.A.S. PAINTING INSPECTION
BLASTING GRADES, COMPARISONS
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World Centre for Materials Joining
B.G.A.S. PAINTING INSPECTION
BLASTING GRADES
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C Sa 1 and Sa 2
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B.G.A.S. PAINTING INSPECTION
BLASTING GRADES
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C Sa 2.5 and Sa 3
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B.G.A.S. PAINTING INSPECTION
BLASTING GRADES
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Sa 1 and Sa 2
World Centre for Materials Joining
B.G.A.S. PAINTING INSPECTION
BLASTING GRADES
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D Sa 2.5 and Sa 3
World Centre for Materials Joining
B.G.A.S. PAINT INSPECTION
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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B.G.A.S. PAINTING INSPECTION
SURFACE PREPARATION
HAND AND POWER TOOL CLEANING B St 2 and
St 3
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B.G.A.S. PAINTING INSPECTION
SURFACE PREPARATION
HAND AND POWER TOOL CLEANING C St 2 and
St 3
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B.G.A.S. PAINTING INSPECTION
SURFACE PREPARATION
HAND AND POWER TOOL CLEANING D St 2 and
St 3
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World Centre for Materials Joining
B.G.A.S. PAINTING INSPECTION
SURFACE PREPARATION
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FLAME CLEANING
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B.G.A.S. PAINTING INSPECTION
PAINT TESTING VISCOSITY.
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FORD FLOW CUP
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B.G.A.S. PAINTING INSPECTION
PAINT FILM MEASUREMENT, WET FILM
ECCENTRIC WHEEL
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World Centre for Materials Joining
B.G.A.S. PAINTING INSPECTION
DESTRUCTIVE TEST GAUGES
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THE P.I.G.
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B.G.A.S. PAINTING INSPECTION
DRY FILM THICKNESS MEASUREMENT,
MAGNETIC.
THE TINSLEY PENCIL
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B.G.A.S. PAINTING INSPECTION
DRY FILM THICKNESS MEASUREMENT, MAGNETIC,
HORSESHOE GAUGE
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B.G.A.S. PAINTING INSPECTION
DRY FILM THICKNESS MEASUREMENTS,
MAGNETIC
THE BANANA GAUGE MODEL 211
SCALE
MOVES TO
THE CURSER
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B.G.A.S. PAINTING INSPECTION
DRY FILM THICKNESS MEASUREMENT
COLOUR CODED CALIBRATION SHIMS
PURPLE
25um
BLUE
50um
BROWN
125um
WHITE
250um
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YELLOW
World Centre for Materials
Joining
B.G.A.S. PAINTING INSPECTION
FLEXIBILITY TEST
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CONICAL MANDREL
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B.G.A.S. PAINTING INSPECTION
DRYING AND CURING TESTS.
BK DRYING TIME RECORDERS
GLASS PLATES
INSERTED INTO
FRONT SLOT.
STYLUS DRAWN
ACROSS.
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B.G.A.S. PAINTING INSPECTION
MECHANICAL THUMB TEST, THROUGH DRYING
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B.G.A.S. PAINTING INSPECTION
HIDING POWER CHARTS AND ADJUSTABLE
APPLICATOR
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B.G.A.S. PAINTING INSPECTION
ADHESION TESTS CROSS CUT ( CROSS HATCH )
TEST SPECIAL CUTTER TOOL
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B.G.A.S. PAINTING INSPECTION
ADHESION TESTS
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THE DOLLY TEST
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B.G.A.S. PAINTING INSPECTION
ADHESION TESTS
TESTER
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THE HYDRAULIC ADHESION
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B.G.A.S. PAINTING INSPECTION
WEATHER CONDITIONS WHIRLING HYGROMETER
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B.G.A.S. PAINTING INSPECTION
WEATHER CONDITIONS
DEW POINT
CALCULATOR
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B.G.A.S. PAINTING INSPECTION
WEATHER CONDITIONS . DEW POINT
CALCULATIONS
DRY BULB = 15
WET BULB = 10
ALIGN 10 WET
(RED) WITH 15 DRY
(BLACK) READ OFF
DP TEMP INSIDE THE
ELIPTICAL WINDOW
OPPOSITE THE WET
BULB TEMPERATURE
OF 10
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World Centre for Materials Joining
B.G.A.S. PAINTING INSPECTION
WEATHER CONDITIONS
DEW POINT
CALCULATOR
DRY BULB TEMP
15, OPPOSITE
DEW POINT
TEMP 5.5, READ
OFF RH FROM
TIP OF BLACK
ARROW, IN THE
SMALL
ELIPTICAL
WINDOW
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B.G.A.S. PAINTING INSPECTION
WEATHER CONDITIONS
MAGNETIC, CONTACT
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STEEL TEMPERATURES
THERMOCOUPLE
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B.G.A.S. PAINTING INSPECTION
HOLIDAY/PINHOLE DETECTION
TYPICAL H/V SET
FOR PINHOLE
DETECTION.
OPERATES UP TO
5 Kv. TOO HIGH
FOR NORMAL
PAINT SYSTEMS
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B.G.A.S. PAINTING INSPECTION
PINHOLE/HOLIDAY DETECTION
SPONGE
DETECTOR
VOLTAGE RANGE 3
TO 90v. SOME
HAVE ONLY 2
SETTINGS.
INTERMEDIATE
67.5v. Sponge is
wetted in water
with a drop of
detergent, excess
squeezed out, then
passed
methodically over
Copyright
2003, TWI Ltd
World Centre for Materials Joining
the substrate
B.G.A.S. PAINTING INSPECTION
PAINT FAULTS, BITTINESS
INCLUSIONS,
EITHER AIRBORN
OR FROM THE
PAINT ITSELF.
COULD BE
PARTIALLY CURED
PAINT, OUT OF
SHELF LIFE.
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B.G.A.S. PAINTING INSPECTION
COATING FAULTS
Copyright 2003, TWI Ltd
BLEEDING
THE SOLVENT
FROM THE TOP
COAT SOFTENS THE
UNDER LYING
MATERIAL AND
ALLOWS IT TO
PASS INTO AND
THROUGH THE
LAYER, CAUSING
DISCOLOURATION.
BROWN FOR
BITUMEN, YELLOW
FOR COAL TARS.
World Centre for Materials Joining
B.G.A.S. PAINTING INSPECTION
COATING FAULTS
BLISTERING
BLISTERS CAN BE FILLED WITH GAS,LIQUID OR
CRYSTALS
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B.G.A.S. PAINTING INSPECTION
COATING FAULTS
CHALKING
DEGRADATION OF A
BINDER DUE TO
DISRUPTIVE
FACTORS IN THE
ENVIRONMENT
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B.G.A.S. PAINTING INSPECTION
COATING FAULTS
CISSING
CAUSED BY
INADEQUATE
SURFACE
PREPARATION.
A DIFFERENCE IN
SURFACE ENERGY
CAUSES LOCAL LACK
OF ADHESION.
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B.G.A.S. PAINTING INSPECTION
COATING FAULTS
CRACKING
COATING AGE AND
DIFFERENTIAL
EXPANSION
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B.G.A.S. PAINTING INSPECTION
COATING FAULTS
CRATERING
BOWL SHAPED
DEPRESSIONS.
CAUSED BY ESCAPING
SOLVENT OR GASES.
PAINT IS OF TOO LOW
A VISCOSITY TO FLOW
AND FILL THE
DEPRESSIONS
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B.G.A.S. PAINTING INSPECTION
COATING FAULTS CURTAINS, SAGS, RUNS AND
TEARS
CAUSED BY OVER
APPLICATION. REMOVE
OFFENDING EXCESS
MATERIAL, LIGHTLY
ABRADE, RECOAT.
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B.G.A.S. PAINTING INSPECTION
COATING FAULTS
FLAKING
MATERIAL
PROGRESSIVELY
GETS BRITTLE
WITH AGE,
CRACKS AND
BEGINS TO
DETACH
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B.G.A.S. PAINTING INSPECTION
COATING FAULTS HOLIDAYS
DEFINED AS BEING
:- A VOID, A MISS,
OR AN UNCOATED
AREA
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B.G.A.S. PAINTING INSPECTION
COATING FAULTS
LIFTING
CAUSED BY SOLVENT STRENGTH AND ALSO
LACK OF OBSERVANCE OF STATED
OVERCOATING TIME
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World Centre for Materials Joining
B.G.A.S. PAINTING INSPECTION
COATING FAULTS
ROPINESS
BRUSHMARKS
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B.G.A.S. PAINTING INSPECTION
COATING FAULTS WRINKLING AND
RIVELLING
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World Centre for Materials Joining
B.G.A.S. PAINTING INSPECTION
HEALTH AND SAFETY DRAGER TUBE AND
BELLOWS
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