Sri Venkateswara University Tender

SPECIALISED HIGH SOLID, COLD APPLIED, ACRYLIC WATERPROOF COATING TO THE EXTERNAL WALLS Acrylic elastomeric waterproof exterior coatings Complies with ASTM C 836 / 89 A : Providing and application of two coats of High solid, cold applied, Acrylic Elastomeric Liquid Membrane Coating with –RAINSEAL (Armstrong )/ POWER n COAT EWC (EBT) / DECKGUARD E 2000 (Fosroc) /ZORICOAT EWC (PMCC) / SIKAGARD 550 W / WATERSHIELD EWC 600diluting with 20% of water mixing with required colour stainers.

SPECIALISED FIVE LAYER SYSTEM OF WATERPROOFING TREATMENT TOTHE TERRACE WITH MIXGUARD HR5 System . Providing and laying five layers waterproofing cum heat reflective treatment (MIXGUARD HR5 or equivalent) over the old / new roof slab/ terrace, all as directedby Department Engineer-in-charge with the following specification and should be complain with the following technical parameters for the system - Density: 1.3 Gm/cc, Solids content: 68% ± 2% byweight, Elongation at break ASTM D 638: 200% (for the system), Adhesion to substrate ASTM D 4541: 1.5 N/mm2, Water penetration DIN 1048: no leak at 7 bars, Tear resistance ASTM D 1004-76: 17N/mm2, Tensile strength ASTM D 412- 87:6.0N/mm2 a ) First Layer - Supply and Apply penetrative cum bonding primer as base primer cum sealer coat using MIXPRIMEAC100 or equivalent modified with waterand cement at the ratio 2:1:3 (MIXPRIME AC 100 : water : cement) by volume with a slow speed mixer machine. This compound shall be applied with sufficient thickness to cover the holes/pores/cracks @ 1.000 Liter / SQM (0.350 Lt of MIXPRIME AC100 / SQM) and the raw primer should be complain with ASTM 4541 and the Solid content 49% +2% b ) Second Layer – Supply and apply of 2 x2 mm welded with alkaline resistant coated / non-woven 40 Gsm verging fiber mesh MIXMAT GFM 50 or equivalent for a minimum over lap of 100 mm embedded in the primer coat c ) Third Layer - Supply and apply of bonding cum water tight acrylic high viscous white primer MIXPRIME AC or equivalent @ 0.250 Kg / SQM (dilution or modification not

recommended) should be complain withDensity: 1.1gm/cc, Solids content: 50 % ± 2% by weight, Elongationat break ASTM D 638: 300%, Adhesion to substrate ASTM D 4541: 1 N/mm2, Tensile strength ASTM D 638: 1.5 N/mm2, Reduction in chloride ion ingress: 94%@28 days d ) Fourth Layer – Supply and apply of high elastomeric acrylic waterproofing cum weather proof high viscous white liquid membrane MIXGUARD HR or equivalent @ 0.500 Kg / SQM (dilution or modificationnot recommended) should be complain with Density: 1.30 gm/cc , Solids content: 68% ± 2% by weight, Elongation at break ASTM D 638: 400%, Tensile strength ASTM D 412: 1.8N/mm2, Adhesion to substrate ASTM D 4541: 1 N/mm2, Water penetration DIN1048: no leak at 7 bars (+ve side), Water vapor transmission ASTM E96: 19g/m2/day, Crack bridging ASTM C836: No cracks up to 2mm thick. E ) Fifth Layer - Supply and apply of fiber reinforced flexible high bride pure acrylic modified waterproofing cum heat reflective high viscous white liquid membrane MIXGUARD HRXtra or equivalent @ 0.500 Kg / SQM (dilution or modification not recommended)Density: 1.3 gm/cc Solids content: 68% ± 2% by weight, Elongation at break ASTM D 638: 200% , Adhesion to substrate ASTM D 4541: 1.3 N/mm2, Water penetration DIN 1048: noleak at 7 bars, Tear resistance ASTM D 1004-76: 15N/mm2 , Tensile strength ATM D 412-87: 3.0N/mm2, Solar reflectance –ASTM G173 – 92 %, Water vapor transmission ASTM E 96 – 19 Kg / M2 / day. Note: - 1 ) No dilution or modification recommended for item No.b,c,d and e . 2 ) All materials should be procured as perthe consumption with respect of the work order. 3 ) The application should be carried out byan approved agency. ) The contractor should provide 5 years material warrantee from the Manufacturerand 5 year warrantee from the applicator or combine