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BGAS Training | CSWIP Training | API, NDT And ISO Training |

Blastline Institute of Surface Preparation and Painting- BGAS & CSWIP training, API & ISO training, WPS & WPQR training, Welding & Painting inspector courses, american petroleum institute training courses in kerala, QA/QC courses, Sandblasting and painting courses, Welding & Painting inspection training.

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BGAS Training | CSWIP Training | API, NDT And ISO Training |

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  1. Blastline Institute of Surface Preparation & Painting

  2. INSPECTION The higher the demands to protection are, the more advanced will the Coating system and painting specification be. This, in turn, increases the demands to the execution of the work - consequently – to the degree of quality control/ painting inspection Level of Inspection Three levels of inspection are cognized. British standard, BS 5493:1977, defines them as follows :- • Full:- All operations observed by an inspector and passed • as complying with the specification before the next stage is • started. ( for Larger projects, this may require a team of inspectors. 2. Intermittent:- Part of all operations observed by an inspector and passed as complying with the specification before the next stage is started. . • Occasional :- All operations observed initially by an inspector for setting • standards of workmanship. Ad hoc visits by an inspector thereafter.

  3. Duties of the inspector :- The duties of the paint coating inspector may be very briefly given as:- - Spotting causes for possible later defects. - Ensure that said causes are removed, or the defects corrected The multitude of tasks belonging to paint coatings inspection may be conveniently divided according to the progress of work. Five distinct phases – some of them recurrent – require the inspector’s attention. • Before surface preparation • Before the start of any surface preparation it would be advantageous to examine, at least • the surface to be treated, preparation equipment, and possibly also structural details. • Surface condition (steel) – Important Check points :- • - Rust grades (eg. A,B,C or D according to SIS 05 59 00: 1967 • - Laminations or inclusions • - Presence of water, Oil, Grease, Soluble salts, soot or other contaminants not • removed by mechanical cleaning. • - Sharp or rough edges. • - Rough or porous welds, weld spatter, arc strikes, excessive weld fumes (usually greasy • etc.)

  4. 2. During Surface Preparation :- • While surface preparation is in progress, relevant equipment checks are made at • regular intervals. • - Cleanness and • - Profile/ Anchor pattern • are monitored to the extent this is possible. • Before paint application :- • main areas, on which the inspector should focus his attention before any paint is applied, would • include the storage, mixing and issue of paints, working conditions and application equipment, • surface condition and the microclimate. • During paint application : - • During the application of paints, most of the checkpoints from foregoing phase remain valid. • in addition : • - wet film thicknesses and • - workmanship • are monitored to the extent possible. • After paint application:- • Always checked, after application of the final coat of paint are • - General appearance and • - Total dry film thickness applied • Checks may, in some cases and for particular jobs, be made on: • - Continuity ( free from pinholes) • - Adhesion / Cohesion • - Smoothness ( this is sometimes desired on the • underwater hull of the ships

  5. INSPECTION INSTRUMENT Surface Preparation • Elcometer 125 • ISO Surface Comparator • Shot & Grit • Visual Assessment • Tactile Assessment • ( touch ) Comparators, for determining surface roughness and profile (anchor pattern)

  6. INSPECTION INSTRUMENT Surface Preparation

  7. INSPECTION INSTRUMENT Surface Preparation • Elcometer 122/124 • Testex Tape & Dial Gauge • Different courses available • Replica of the profile • Measure total thickness • Subtract 50 microns (thickness of hard plastic window) • e.g. 125 micron total thickness = 75 micron peak-to-valley height

  8. INSPECTION INSTRUMENT Surface Preparation • Elcometer 127 • Keane-Tator Surface Profile Comparator • Shot, Grit and Sand Rugotest • Elcometer 129 • Rubert Surface Comparator • Shot • Grit • Rugotest Surface Comparator • Dual Rubert

  9. INSPECTION INSTRUMENT Surface Preparation • Elcometer 123 • Surface Profile Gauge • Take average of several readings • Zero on Glass • Elcometer 224 • Surface Profile Gauge • Take average of several readings • Built in memory & averaging facility • Digital Output • Digital display with data summary • Batch collection

  10. INSPECTION INSTRUMENT Elcometer 130 (SCM400) SALT DETECTION EQUIPMENT • Soluble Salts - The Problem • Salt Detection Methods • Salt Detection in Abrasives & Water Bresle Patch (Elcometer 135/B) • Apply patch • Insert 3 ml of distilled water • Pump liquid to release salts • Extract solution • Test solution with conductivity meter • Available as a kit • Wet filter paper with 1.6 ml water • Place paper on test site / surface for 2 min. • Place paper on electrode & close lid • Display shows salt level in µg/cm²

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