National Handloom Development Corporation Limited Tender

Dismantling old plaster or skirting raking out joints and cleaning the surface for plaster including disposal of rubbish to the dumping ground within 50 metres lead.

Grading roof for water proofing treatment with Cement concrete 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate 20mm nominal size)

Water proofing treatment over Roof, Wall, Chajjas, Balcony with Diamond Shield and Sealer coat or equivelent at leakage/ seepage area consisting of (i) Surface preparation roughening of surface, opening of cracks in 'V' groove in size of 5mmx10mm (WxD), filling of cracks with putty of Diamond shield with laying fiber glass mesh, Cleaning of surface by scrubbing with steel wire/ Nylon brush. Removing all dust particles and washing with adequate water to clean completely. (ii) Providing and applying 1st coat of diamond shield or equivelent (minimum thicknes 70-80 micron) (a two component flexible waterproof and protective modified mortar, dry powder 80% Chemical 20% acrylic resin having 30% solid contents) with mix proportion of Paart 1 and 2 with proper mixing with laying of fiber glass mesh (of weaving size of 10x10 yarn/inch duly coated with alkaline resistant polymer). Allow the coating to air cure for minimum 2 Hrs. (Diamond Shield or equivelent. After two hours minimum of 1st coat applying 2nd coat (minimum thickness 100 micron) of diamond shield or equivelent with mix proportion of part 1 and part 2 with proper mixing. Allow the coating to air cure for minimum 2 Hrs. Consumption of the diamond shild or equivelent should be @17.90 kg for 10sqm area. (After two coats of diamond shield, surface is to be cured properly minimum for 4 hrs.before application of third coat). (iii) Providing and applying 1st coat of sealer coat 50-60 micron (single component High build elastomeric, flexible, pure acrylic waterproofing membrans having solid content of 65%) and allow it to air cure for 4 Hrs minimum. After two hours minimum of 1st coat applying 2nd and final coat 120-140 micron of sealer coat and allow it to air cure for 4 Hrs minimum. Consumption of Sealer coat should be @ 5.40 kg per 10 sqm. area. (IV) The treated area should be cure with water for 48 hrs. by flooding the surface. (V) The final appearance of the coating will be milky white. All above operations to be done in order