BDESCRIPTION
BOSCOCEM SBR is a styrene butadiene rubber latex emulsion
additive. It is designed for use as an integral bonding agent with
cement-based products in slurry bonding coats, mortars,
screeds, renders and tile adhesives. It is used to improve
adhesion to properly prepared substrates. The tile adhesive so
prepared is good for bonding all types of tiles.
MART ADVANTAGES - Increases Flexural & tensile strength - Improves bond strength - Reduces shrinkage & cracking - Improves workability
FEATURES & BENEFITS
• Increases flexural and tensile strength
• Improves bond strength
• Enhances waterproofing properties of concrete
• Improves workability and abrasion resistance
• Reduces shrinkage and cracking
• Resists chemical and water resistance
• Protects from freeze-thaw damage
• Reduces water absorption of mortar
AREAS OF APPLICATION
• Cement based toppings, patching mortars, leveling
compounds and terrazzo
• Waterproofing cement/sand renders / screeds
• Bonding concrete repair mortars
• Bonding agent for ceramic tiles, bricks, cold joints etc.
• Preparation of spatter dash
MIXING
Bonding slurry: A mixture of 1:1.5 BOSCOCEM SBR: OPC (by
volume) bonding slurry is prepared and mixed in a clean
container until a creamy brush consistency is obtained.
Mix only the amount that can be used within the working life
of the product.
Polymer admixture for mortars: With mixer running, add
measured quantity of BOSCOCEM SBR, water, OPC, sand and
aggregate depending on type of application (refer to the
following mix designs for batching proportions). Mix to
desired thixotropic consistency for hand packed mortars.
TYPICAL DESIGNS ARE DETAILED BELOW:
RENDER
(Recommended thickness: 6mm to 10mm) by weight by Volume
Cement 50 kgs 1 part
Sand 125 kgs 2 parts
Boscocem SBR 9 kgs 1:1 Boscocem SBR : water
to working consistency Water 9 kgs
Approximate Yield: 0.08m3
HEAVY DUTY FLOOR SCREED
(Recommended thickness: 25mm to 40mm) by weight by Volume
Cement 50 kgs 1 part
Sand 75 kgs 1.25 parts
Granite chips 75 Kgs 1.25 parts
Boscocem SBR 9 kgs 1:1 Boscocem SBR : water
to working consistency Water 10 kgs
Approximate Yield: 0.08m3
User is recommended to carry out trials to establish propser
dosage and technical requirements.