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BGAS-CSWIP Painting Inspector Grade 2 ATC88
Rev 3 June 2011 Contents Copyright TWI Ltd 2013
BGAS-CSWIP Painting Inspector Grade 2 Contents Section
Subject.
1 1.1 1.2
Corrosion Electrical circuit The chemical reaction
2 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10 2.11 2.12 2.13 2.14 2.15 2.16 2.17 2.18 2.19
Surface Preparation Methods and Standards Dry abrasive blast cleaning Abrasives Sizing of abrasives Adhesion and profile Profile Shot blasted profile Profile measurement Assessing a profile to BS 7079 Pt C ISO 8503.1 Use of the comparators Using the comparators Preparation of steel substrate before application of paints and related products Abrasive blasting grades Equipment Water blasting Flame cleaning Method Pickling Vapour degreasing Weathering
3
Surface Contaminants and Tests for Detection
4 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9 4.10 4.11 4.12 4.13
Paint Constituents and Basic Technology Liquid paints containing solvent Solvent free Powders Binder Binder solvent groups and compatibility Polyurethanes use ketones and esters with aromatic diluents. Polymers Linear polymers Branched polymers Cross linked polymers Oils Pigments PVC
1
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Rev 3 June 2011 Contents Copyright TWI Ltd 2013
4.14 4.15
Solvents Other additives
5
Solutions and Dispersions
6 6.1 6.2 6.3 6.4
Drying and Curing of Paint Films Solvent evaporation Oxidation Chemical curing Coalescence
7 7.1
Paint Systems Primer
8
Water Borne Coatings
9 9.1
Paint Manufacture Direct charge dispersing mills
10 10.1 10.2 10.3 10.4
Testing of Paints for Properties and Performance Tests on paint Paint density Hegman grind gauge Viscosity
11 11.1 11.2 11.3 11.4 11.5 11.6 11.7 11.8 11.9 11.10 11.11 11.12 11.13 11.14
Film Thicknesses Comb gauges Tests done on dry paint films Destructive test gauges Non-destructive test gauges Tests for mechanical properties on paint films Accelerated testing Drying and curing tests BK drying recorders Other tests Trough type Black and white fused plates Hiding power charts and micrometer adjustable film applicator Degree of gloss Adhesion
12 12.1 12.2
Specified Coating Conditions The whirling hygrometer, aspirated hygrometer or psychrometer Steel temperature measurement
13 13.1 13.2 13.3 13.4 13.5
Cathodic Protection Sacrificial anode systems Impressed current system Interference Monitoring CP Cathodic disbondment
14 14.1
Holiday/Pinhole Detection Voltage setting
2
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15 15.1 15.2 15.3 15.4
Paint Application Brush application Roller application Spray application (Conventional, Airless, Elecrostatic) Other paint application methods
16 16.1 16.2 16.3 16.4 16.5 16.6 16.7 16.8 16.9
Metal Coatings Galvanising Sheradising Calorising Anodising Electro-plating Hot metal spraying Powder system Electric arc system Wire and pistol system
17
Coating Faults
18
Colour
19 19.1 19.2 19.3 19.4
Health and Safety Hazard warning symbols Responsibilities Maximum exposure limit (MEL) Occupations exposure standard (OES)
20
Duties of An Inspector
21
List of Specification and British Standards (BS) Numbers
22
Quality
23
Revision Questions Appendix 1
Insulation
Appendix 2 PA 9
Specification for paint systems, properties and performance requirements.
PA10
Specification for now and maintenance painting at works. Site for above ground pipeline and plant installations.
3
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