WALLZ® BRUSH BOND
DESCRIPTION
Acrylic Polymer modified waterproofing coating for concrete & masonry
Brushcrete is a single component acrylic polymer which in conjunction with cement forms a composite polymer modified cementitious waterproofing system.
Brushcrete is a single component acrylic polymer which in conjunction with cement forms a composite polymer modified cementitious waterproofing system.
USES
Brushcrete polymer in conjunction with cement provides a seamless waterproof coating to concrete and masonry surfaces. It can be used as a waterproof or protective WXcoating.
ADVANTAGES
Can be applied in uniform thickness to horizontal and vertical surfaces.
* Develops excellent bond to most building materials.
* Reduces or prevents salt penetration into concrete.
* Is not affected by ultraviolet light or by chemicals ranging from mild acids to strong alkalies.
* Is highly durable in continuous wet condition.
* Is non-flammable and does not give off toxic gases, When exposed to fire.
* Non toxic
* Develops excellent bond to most building materials.
* Reduces or prevents salt penetration into concrete.
* Is not affected by ultraviolet light or by chemicals ranging from mild acids to strong alkalies.
* Is highly durable in continuous wet condition.
* Is non-flammable and does not give off toxic gases, When exposed to fire.
* Non toxic
AREAS OF APPLICATION
* Waterproofing of toilets, terraces, roofs, etc.
* General concrete repairs
* Protection of concrete against salt attack etc.
* General concrete repairs
* Protection of concrete against salt attack etc.
Surface Preparation
Prior to application of Brushcrete, surface must be prepared as mentioned below to avoid failure :
*The surface shall be cleaned to remove all dust, foreign matters,loose materials or any deposits of contamination which could affect the bond between the surface and the coatingThis can be done by scarifying, grinding, water blasting, sand blasting, acid washing or by any other approved method.
*New flat surface like sub-base concrete shall be made reasonably smooth so as not to impede the application of Brushcrete coating and to avoid sharp projections.
All concrete surfaces shall be thoroughly pre-wetted for at least one hour prior to the application of Brushcrete coating by pouring water on flat surface or by vigorously spraying water on vertical/inclined surfaces.When placing Brushcrete coating,water should be removed so that surface is only damp. In no case there should be standing water or a shiny wet surface.
Depressions are filled and leveled using Brushcrete fillers.For filler, the mixing ratio is 1 kg cement:1.5 by silica sand and 0.52 kg Brushcrete.
*The surface shall be cleaned to remove all dust, foreign matters,loose materials or any deposits of contamination which could affect the bond between the surface and the coatingThis can be done by scarifying, grinding, water blasting, sand blasting, acid washing or by any other approved method.
*New flat surface like sub-base concrete shall be made reasonably smooth so as not to impede the application of Brushcrete coating and to avoid sharp projections.
All concrete surfaces shall be thoroughly pre-wetted for at least one hour prior to the application of Brushcrete coating by pouring water on flat surface or by vigorously spraying water on vertical/inclined surfaces.When placing Brushcrete coating,water should be removed so that surface is only damp. In no case there should be standing water or a shiny wet surface.
Depressions are filled and leveled using Brushcrete fillers.For filler, the mixing ratio is 1 kg cement:1.5 by silica sand and 0.52 kg Brushcrete.
Mixing
Brushcrete Polymer is mixed with neat cement in the ratio of 100 kg cement:50 kg of Brushcrete. The mix has to be stirred thoroughly until no air bubbles remain in the mix. Any lump found in the mix should be removed.
Application :
The mix has to be applied by brush on rendered and/or prepared surface. Two or more coats are recommended. First coat should be allowed to stir dry for 5-6 hours. The surface should be made wet before application in case of porous structures.
Curing
During the first 12 hours of curing, it must be protected from abrasion, rain and other adverse conditions. No traffic shall be allowed on a Brushcrete treated surface within 48 hours after application. After application of final coat of Brushcrete, initial air drying shall be done for 2-6 hours. During this period no water is to be used for curing. In case of high temperature and low humidity combined with high wind condition, the coating shall be covered with polythene sheet to avoid rapid
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