Water Treatment & STP Tender Results

Providing and Applying ACRYLIC emulsion polymer waterproofing chemical coating, on over roof on over roof slabs/terrace/balconies/parapet wall etc.with following method/specification:Paint the surface with regular paint brush so as to obtain approximately 0.3mm thickness coating. apply the 2nd coat next day at right angles to the 1st coat so that total thickness of the coating should be approximately 0.6mm coverage by using above formulation will be 40 ft2/ litre of chemical. painted surface does not require any external water curing since chemical will hold sufficient water for curing.After the primer coat Apply 2 coats of modified acrylic emulsion polymer water proofing compound having solar heat reduction properties coating @ 0.330 KG/SQM on the surface of the interval of 3-4 hours. Undulation on the surface is repair before the waterproofing work.

M&L water proofing treatment to roof slab with APP modified polymeric membrane thickness not less than 3 mm plain membrane (weight of membrane not less than 3.50 Kg + 5% per Sqm) and weight of centre core polyster mat shall be 160 gram + 15% per Sqm and lower side finished with 10 to 15 micron thermo fusible polyethylene complete all as specified and directed. (a)The surface of roof, parapet and gutters and drains mouth etc over which waterproofing treatment is to be applied shall be thoroughly cleaned of all foreign matter, moss dust etc by wire-brushing and dusting. For cast iron/PVC drains outlets a grove shall be cut around to tuck in the treatment. Concrete angles-fillets provided at junctions between roofs and verticals faces of walls (parapet and other walls) around obstacles such as pipe, chimney stacks etc and other similar situation to ease up about corners. (b) On the prepared surface one coat of Solvent based bituminous primer (Sika® WP shield Primer or other techno commercially Equivalent make of STP/IWL ) shall be applied @ 0.35 to 0.50 Kg/sqm till the surface is properly impregnated. The time delay of laying of membrane after application of primer shall be as per manufacturer instructions. (c) Laying of polymeric waterproofing membrane and bonded completely to the substrate & the overlaps are then sealed /fused by flame torch as per manufacturer instructions. (d) The overlaps shall be of minimum 4 Inch (100 mm) side lap and 150mm at end ,sealed by the flame-torch.