MasterCast 141 Bonding agnet

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MasterCast 141 is a white liquid (SBR) styrenebutadiene co-polymer latex, specifically designed
for use with Portland cement mixes. The latex
consists of microscopic particles of synthetic
rubber dispersed in an aqueous solution. It is used
as an admixture in mortar and concretes to
improve compressive and flexural strengths,
improve bond increase resistance to water
penetration, improve abrasion resistance and
durability. It is used with Portland cement as a
reliable water-resistant bonding agent.

 

PRIMARY USES
The use of MasterCast 141 synthetic latex in
cement-based slurries and mortars compensates
for many deficiencies in the mixes without
detracting from their inherent strength and
properties. As ordinary mortar dries out, voids are
created which make it permeable and weaker.
When MasterCast 141 is added, the MasterCast
141 particles bind together to form continuous
films and strands - these bind to the sides of the
voids and block up the capillary pores, thus
increasing strength and resistance to water
penetration.
MasterCast 141 improved mortars are
especially suited for the following:
 Concrete repair.
Repairing spalled, cracked or damaged
concrete, floors, beams, columns and precast
slabs.
 Corrosion protection of reinforcing steel.
As a bonding slurry or steel primer in concrete
repairs.
 Floor screeds and toppings.
Producing abrasion resistant and mild
chemical and effluent-resistant, non- dusting
floors, and underlays for special finishes,
coatings and toppings.
 Waterproofing and tanking.
Basements, lift pits, inspection pits, water
towers, liquid tanks, effluent tanks and
swimming pools.
 External rendering.
Waterproof, weatherproof and frost resistant
render.
 Fixing slip bricks and tiles.
Bedding tiles, fixing or re-fixing slip bricks,
bonding new concrete to old.
 Polymer modified concrete.
Production of Polymer Modified Concrete
according to ACI 548.3
 Light Weight EPS bead concrete.
Mix stabilization and cohesion improver to
reduced surface EPS bead loss.
ADVANTAGES
 Earlier hardening
 Improved flexural strengths
 Greatly reduced shrinkage
 Reduces bleeding
 Lower water-cement ratio increases strengths
 Increased durability and toughness
 Excellent resistance to water penetration
 Improves abrasion resistance and reducing
dusting
 Good frost resistance and resistance to salt
permeation
 Good resistance to many chemicals and to
mineral oil
 Excellent adhesion to steel and concrete -
adheres well to brick, glass, asphalt, wood,
expanded polystyrene and most building
materials
 Long term corrosion protection
 Similar thermal expansion and modulus
properties to concrete (unlike resin mortars and
primers)
 Non-toxic. Can be used with potable water
 More economical than epoxy or polyester resin
mortar