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Tuesday, October 21, 2008

SOP - PAINTING OF THE FACILITY

1.0 PURPOSE :
To provide proper guidelines for painting.
2.0 SCOPE:
Whole plant.
3.0 RESPONSIBILITY:
Maintenance department.
4.0 ACCOUNTABILITY:
Head of Maintenance department.
5.0 DEFINITIONS:
Nil.
6.0 PROCEDURE:
6.1 GENERAL:
6.1.1 In manufacturing, filling, coating, sampling, dispensing areas and corridor, air lock the flooring is epoxy. Concrete pillars and beams are painted with PU Paint. All other areas (Store, Packing hall, Corridors) wall and ceiling is painted with Acrylic Emulsion paint. All utility areas and structure are painted with synthetic enamel paints.
6.2 FOR PU PAINTING:
6.2.1 The area is properly leveled with terraco plaster. On the prepared surface poly urethane primer is applied with brush. The surface is dried for 3 to 4 hours. When surface is tacky the first coat of PU paint is applied with brush. Three such coats are applied. Each coat is allowed to dry for 8 to 10 hours.
6.3 FOR EPOXY FLOORING:
6.3.1 The flooring is properly cleaned with wire brush to remove all dust particles from flooring. The pothole in flooring is leveled with epoxy mortar. The epoxy mortar is prepared by mixing quartz sand (No.10) in sterile paint. The surface is leveled with water papers. On the prepared surface 2 mm self leveling epoxy is applied. This floor is allowed to dry for 2 days.
6.4 FOR ENAMEL PAINT:
6.4.1 The surface is cleaned with wire brush and two coats of primer is applied. Each coat is allowed to dry for 10 to 12 hours. Then another two coats of enamel paint are applied.
6.5 SURFACE PREPARATION:
6.5.1 PIPELINES AND STRUCTURAL SUPPORTS:
Where corrosion in pipelines and pipeline supports is noticed, clean the surface thoroughly with chipping hammer and wire brush to bare metal. Apply appropriate primer (zinc primer for enamels paints) as base coat; allow drying for at least 24 hours and overcoat with recommended paint as required.
6.6 EQUIPMENTS:
6.6.1 Where corrosion in equipment is noticed remove all traces of oil or grease with cotton waste and scrap thoroughly to clean the surface. Touch up with appropriate primer and over coat with recommended paint as required.
6.7 WALLS, DOORS AND WINDOWS:
6.7.1 Remove all loose and flaked paint with scrapper or emery paper, level with putty as required and over coat with recommended paint.
6.8 SPECIFICATIONS AND PREPARATION OF PAINT:


6.9
COLOUR CODES FOR PIPELINES:
6.9.1 Steam - Red Bands over Aluminum Cladding
6.9.2 Potable - Water Yellowish (CPVC Pipe)
6.9.3 Chilled - Water Dark Blue
6.9.4 Cooling - Water Blue
6.9.5 Fire Water - Postal Red
6.9.6 Compressed Air - Sky Blue
6.9.7 Drains line - Black
6.9.8 Vacuum - Ivory
6.9.9 Nitrogen - Yellow
6.9.10 Diesel - Brown
6.10 HANDING OVER PROCEDURE:
6.10.1 After painting, the surface should be allowed to cure for at least 24 hours with paints like enamel, and ordinary aluminium paints and 2 to 3 hours for paints like snowcem. High temperature resistant aluminum paint will be cured only after the painted surface reaches that particular temperature. After painting the near by area should be cleaned by removing spillage of any paint. The equipment / area which was painted is now ready for use.
7.0 REFERENCES:
Nil.
8.0 ENCLOSURES:
Nil.
9.0 ABBREVIATIONS:
9.1 PU - Poly Urethane

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