GAIL (India) Limited
GAIL (India) Limited GAIL (India) Limited
6114.2.3 ApplicationBonding agent and water shall be mixed first. Then the flakes / granules shall be added and mixedthoroughly and kneaded till no lumps are found. The dough shall be left for 20-30 minutes before startingapplication. The bonding agent, flakes / granules and water shall be mixed in different ratios for differentfinishes as per manufacturer’s specifications.The first application shall be by steel trowel. It shall be smoothened, if the specified finish required, by aplastic trowel.14.3. VarnishingVarnishing of wood and wood based material shall be in accordance with IS 2338 (Part – II).Surface to be Varnished shall be prepared to produce a smooth, dry and matt surface and all dust and dirtshall be removed from the surface.The varnish shall be applied liberally with a bush and spread evenly over a portion of the surface withshort light strokes to avoid fronting. It shall be allowed to flow out while the next section is being laid in.Excess, varnish shall be scraped out of the brush and then the first section be crossed, re crossed and laidoff lightly. The varnish, once it has begun to set, shall not be retouched. In case of any mistake, theVarnish shall be removed and the work shall be started afresh.Where two coats of varnish are applied, the first coat shall be hard drying under coating or flatting varnishwhich shall be allowed to dry hard and then be flatted down before applying the finishing coat. Sufficienttime shall be allowed in between two coats.When flat varnishing is used for finishing, a preparatory coat of hard drying under coating of flattingvarnish shall first be applied and shall be allowed to harden thoroughly. It shall then be lightly rubbeddown before the flat varnish is applied.On larger areas, the flat varnish shall be applied rapidly, and the edges of each patch applied shall not beallowed to set, but shall be followed up whilst in free working conditions.14.3.1 French polishFrench polish shall conform to IS: 348. Suitable pigments shall be added to get the required colour.The surface to be French polished shall be rubbed down to smoothness with sand paper and shall be welldusted. Pores in the surface shall be filled up with fillers.A pad of woolen cloth covered by a fine clothshall be used to apply the finish. The pad shall be moistened with polish and rubbed hard on the surface ina series of over lapping circles applying the polish sparingly but uniformly over the entire area to give aneven surface. A trace of linseed oil may be used on the face of the pad for the purpose. The surface shallbe allowed to dry and the remaining coats applied in the same way. To finish off, the pad shall be coveredwith a fresh piece of clean fine cloth, slightly damped with methylated spirit and rubbed lightly andquickly with circular motions. The finished surface shall have a uniform texture and high gloss.14.4 PAINTING OF STEEL AND OTHER METAL SURFACES14.4.1 GENERALReference shall be made to the following Indian Standards: IS 2524, IS 1447.14.4.2 Preparation of surfaceThe surface, before painting, shall be cleaned of all rust, scale, dirt and other foreign matter with wirebrushes, steel wool, scrappers, sand paper etc. The surface shall then be wiped finally with mineralturpentine which shall then be removed of grease etc. The surface then shall be allowed to dry. In case ofGI surface so prepared shall be treated with Mordant solution (5 liters for about 100 sq.m) by rubbing the
62solution generously with brush. After about half an hour, the surface if required shall be retouched andwashed down thoroughly with clean cold water & allowed to dry.14.4.3 Application of priming and paintsApproved quality primer and paint in specified no. of coats shall be applied as per manufacturer’srecommendations either by brushing or spraying. Each subsequent coat shall be applied only after thepreceding coat is dried.14.5 SYNTHETIC ENAMEL PAINT TO WOOD WORK14.5.1 Synthetic enamel paint of approved brand and manufacture and of the required colour shall be used for thetop coat and an under coat of shade to match the top coat as recommended by the manufacture shall beused.14.5.2 One coat of specified paint of shade suited to the shade of the top coat shall be applied after rubbing withthe finest grade of wet abrasive paper to ensure a smooth and even surface, free from brush marks and allloose particles dust off.14.5.3 Top coats of specified paint of required shade shall be applied after the first coat is thoroughly dry.Additional finishing coats shall be applied if found necessary to ensure properly uniform glossy surface.15. SPECIFICATION FOR FALSE CEILING, FALSE FLOORING, UNDERDECKINSULATION & PARTITIONS1. FALSE CEILING GRID SYSTEMS1.1 Steel snap Grid System1.1.1 MaterialSteel snap grid system shall be erected for the purpose of supporting the false ceiling tiles.a. Main runner shall be of 24 SWG, Spring grade, Vinyl coated steel member. Main runner shall be Tshaped and of 34.925 mm x 25.4 mm size. Main runner shall be slotted @ 300 mm C/C at the Web forSnapping in the cross tees and punched @ 100 mm C/C for fixing GI hangers. Both ends of the membershall be formed and die-cut identically for self splicing rigid perfect joint with another continuation mainrunner.b. Cross - RunnerCross Runner shall be same as Main runner specified in clause No. 1.1.1.2 but without any slotting andpunching.cWall ChannelWall channel shall be of 26 SWG spring grade and Vinyl coated steel member of 25.4 mm x 34.925 mm x25.4 mm size.1.1.1.2 ERECTIONAt first, desired level of false ceiling tiles shall be marked on the walls. Wall channels then shall be fixedto peripheral walls with raw plugs/dash fastners @ 450mm C/C accordingly so that the false ceiling tilesare at desired level.Main Runners shall be placed at the spacing of max. 600 mm C/C and shall be fixed by 12 Gaugestraightened GI wire fixed to the punches in the main runner @ max. 1200 mm and to the ceiling hooks.The ceiling hooks shall be fixed to the ceiling by raw plugs / dash fasteners. The ends of the main runner
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- Page 97 and 98: 6Ceiling rose: a) A ceiling rose or
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- Page 107 and 108: 16CHAPTER 31. Scope:LAYING OF CABLE
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62solution generously with brush. After about half an hour, the surface if required shall be retouched andwashed down thoroughly with clean cold water & allowed to dry.14.4.3 Application of priming and paintsApproved quality primer and paint in specified no. of coats shall be applied as per manufacturer’srecommendations either by brushing or spraying. Each subsequent coat shall be applied only after thepreceding coat is dried.14.5 SYNTHETIC ENAMEL PAINT TO WOOD WORK14.5.1 Synthetic enamel paint of approved brand and manufacture and of the required colour shall be used for thetop coat and an under coat of shade to match the top coat as recommended by the manufacture shall beused.14.5.2 One coat of specified paint of shade suited to the shade of the top coat shall be applied after rubbing withthe finest grade of wet abrasive paper to ensure a smooth and even surface, free from brush marks and allloose particles dust off.14.5.3 Top coats of specified paint of required shade shall be applied after the first coat is thoroughly dry.Additional finishing coats shall be applied if found necessary to ensure properly uniform glossy surface.15. SPECIFICATION FOR FALSE CEILING, FALSE FLOORING, UNDERDECKINSULATION & PARTITIONS1. FALSE CEILING GRID SYSTEMS1.1 Steel snap Grid System1.1.1 MaterialSteel snap grid system shall be erected for the purpose of supporting the false ceiling tiles.a. Main runner shall be of 24 SWG, Spring grade, Vinyl coated steel member. Main runner shall be Tshaped and of 34.925 mm x 25.4 mm size. Main runner shall be slotted @ 300 mm C/C at the Web forSnapping in the cross tees and punched @ 100 mm C/C for fixing GI hangers. Both ends of the membershall be formed and die-cut identically for self splicing rigid perfect joint with another continuation mainrunner.b. Cross - RunnerCross Runner shall be same as Main runner specified in clause No. 1.1.1.2 but without any slotting andpunching.cWall ChannelWall channel shall be of 26 SWG spring grade and Vinyl coated steel member of 25.4 mm x 34.925 mm x25.4 mm size.1.1.1.2 ERECTIONAt first, desired level of false ceiling tiles shall be marked on the walls. Wall channels then shall be fixedto peripheral walls with raw plugs/dash fastners @ 450mm C/C accordingly so that the false ceiling tilesare at desired level.Main Runners shall be placed at the spacing of max. 600 mm C/C and shall be fixed by 12 Gaugestraightened GI wire fixed to the punches in the main runner @ max. 1200 mm and to the ceiling hooks.The ceiling hooks shall be fixed to the ceiling by raw plugs / dash fasteners. The ends of the main runner
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