Sunday, October 25, 2009

Waterproofing Procedure for Engineer Plus 7 Layer Coating System ….


Waterproofing Procedure for Engineer Plus 7 Layer Coating System ….

1) Surface Preparation:

 Remove all loose plaster, particles, dust, oil, grease, algae, moss, and fungus. Remove and up root all grown up trees with the help of mechanical means like wire brush, coir brush, brooms, knives and air blower etc. 

2) Surface Pre – Treatment: 

The pre treatment is necessary to support the treatment effectiveness, these are described in brief as follows 

a) Crack Treatment:
 
  Open all surface cracks with the help of knife, hand grinder and remove dust and loose particles with the help of cleaning brush or air blower.

  Apply one coat of Engineer Plus URP 99 as prime coat with in the crack with the help of paint brush.

  Fill the cracks with Engineer Plus Crack Fill Putty for the crack size up to 5 mm wide, and use Engineer Plus PMF 99 for crack size above then 5mm. 

b) Sloping & Leveling:

  After surface preparation repair all pot holes and damaged surface with modified concrete mortar as follows

  Prime the pot hole, unleveled and damaged surface with Engineer Plus URP 99 by paint brush.  Prepare the modified concrete mortar with composition of  Sand + Cement + Engineer Plus WAC 99 (PBW)      2  :  1  :  1 
        
   Use above composition of concrete to repair work in such a way that it supports rainwater flow towards drain outlet with the help of masonry tools like float, trowel etc.    

3)   Waterproof Coatings:  

   a)   Apply first coat of  waterproofing layer as prime coat with the help of paint brush Engineer Plus ICS 99 : Cement : Engineer Plus WAC 99     1   :  1   :  1

 b) After drying of first coat start layering fiber mesh over it and apply second coat of  waterproofing layer with the help of paint brush Engineer Plus ICS 99 : Cement : Engineer Plus WAC 99                1  :  2 – 2.5  : 

c) After drying of second coat apply third coat of  waterproofing layer as with the help of paint brush Engineer Plus ICS 99 : Cement : Engineer Plus WAC 99   1  :  2 – 2.5  : 1

 d) After drying of third coat apply fourth coat of  waterproofing layer as with the help of paint brush Engineer Plus ICS 99 : Cement : Engineer Plus WAC 99   1  :  2 – 2.5  :  1

 e) After drying of fourth coat apply fifth coat of  waterproofing layer as with the help of paint brush Engineer Plus ICS 99 : Engineer Plus WPC 99   1  : 

f) After drying of fourth coat apply fifth coat of  waterproofing layer as with the help of paint brush Engineer Plus ICS 99 : Engineer Plus WPC 99    1   :   1 

4) Material Mixing Procedure:  

 Mix the material in shown sequence like mix the cement and sand in proportion before adding Engineer Plus WAC – 99 to it for preparing modified concrete mortar.

  Mix the material in shown sequence: like add the cement in E. P. ICS 99 in recommended proportion before adding Engineer Plus WAC – 99 to it for preparing waterproofing coating mix. 

 Use good quality of cement of fresh lot of 43/53 grade Portland cement