Painting of Stop Log Gantry Crane, Bulk Head Gantry Crane, Draft Tube Gantry Crane, TRCM and Intake Gates other Accessories of Omkareshwar Power Station

Amount

Painting of structural components of Hoist including supporting structures and surfaces of hydraulic hoist sun exposed to water as perIS:14177, for which surface preparation by blast cleaning of class 'B', primer coat (two coats)of Zinc phosphate primer to give dry film thickness of 40 ± 5microns per coat and finish coat(one coat) of alkyd based micaceous iron oxide paint give dry film thickness of 65 ± 5 microns followed by two coats of synthetic enamel paint, using airless spray, to give dry film thickness of 25 ± 5 microns per cost, at an interval of 24 hours. Thus total dry film thickness of all the coats, including primer coating, should not be less than175 microns. This will include expenses on mobilisation and demobilisation of equipment’s. For maintenance painting, the surface preparation shall be done by appropriate hand and power tool cleaning. Prior to hand and power tool cleaning, any heavy layer of rust should be removed by chipping. Visible oil, grease, dirt and other foreign material be cleaned using solvents like clean mineral spirits, xylol or white gasoline. After hand and power tool cleaning, the surface should be cleaned of loose dust and debri sand / or blast cleaned as laid down in para 7.0 of IS Code14177. After the surface preparation, the primer and finishing coats shall be carried out as provided above for painting etc. complete. Upto 1.5 m height

Painting of structural components of Hoist including supporting structures and surfaces of hydraulic hoist sun exposed to water as perIS:14177, for which surface preparation by blast cleaning of class 'B', primer coat (two coats)of Zinc phosphate primer to give dry film thickness of 40 ± 5microns per coat and finish coat(one coat) of alkyd based micaceous iron oxide paint give dry film thickness of 65 ± 5 microns followed by two coats of synthetic enamel paint, using airless spray, to give dry film thickness of 25 ± 5 microns per cost, at an interval of 24 hours. Thus total dry film thickness of all the coats, including primer coating, should not be less than175 microns. This will include expenses on mobilisation and demobilisation of equipment’s. For maintenance painting, the surface preparation shall be done by appropriate hand and power tool cleaning. Prior to hand and power tool cleaning, any heavy layer of rust should be removed by chipping. Visible oil, grease, dirt and other foreign material be cleaned using solvents like clean mineral spirits, xylol or white gasoline. After hand and power tool cleaning, the surface should be cleaned of loose dust and debri sand / or blast cleaned as laid down in para 7.0 of IS Code14177. After the surface preparation, the primer and finishing coats shall be carried out as provided above for painting etc. complete. Beyond 1.5 m height

Painting of lifting beam/lifting tackles are per IS : 14177, for which surface preparation by blast cleaning, as per class "C" or class "B", primer coat (two coats) of zinc Phosphate primer, to provide dry film thickness of 40 microns per coat and finish coat (two coats) of alkyd based micaceous iron oxide paint, using airless spray, to provide minimum dry film thickness of 65± 5 microns per coat, at an interval of 24 hours. Thus, total dry film thickness of all the coats, including primer coating, should not be less than 200 microns. This will include expenses on mobilisation and demobilisation of equipment’s. For maintenance painting, the surface preparation shall be done by appropriate hand and power tool cleaning. Prior to hand and power tool cleaning, any heavy layer of rust should be removed by chipping. Visible oil, grease, dirt and other foreign material be cleaned using solvents like clean mineral spirits, xylol or white gasoline. After hand and power tool cleaning, the surface should be cleaned of loose dust and debris and / or blast cleaned as laid down in para 7.0 of IS Code14177. After the surface preparation, the primer and finishing coats shall be carried out as provided above for painting etc. complete. Upto 1.5 m height