SBR Latex Admixture For Visually Immersive Surfaces Ludhiana

What is SBR Latex Admixture?

SBR Latex admixture refers to a Styrene-Butadiene Rubber latex in liquid form, used as a bonding agent and modifier in cementitious materials (like concrete, mortar, and plaster). It’s a synthetic polymer admixture that improves the properties of cement-based mixes.

Composition

It is a copolymer of styrene and butadiene.

The product is typically supplied as an aqueous emulsion (latex) with solids content ranging from 40% to 50%.

Purpose and Benefits of SBR Latex Admixture

Improved Adhesion:

Enhances bond strength between new and old concrete or between cement and aggregates.

Increased Flexibility:

Provides elasticity to the mix, reducing cracking and shrinkage.

Water Resistance:

Improves water impermeability and reduces water absorption, making the structure more durable.

Improved Durability:

Enhances resistance to chemicals, frost, and abrasion.

Better Workability:

Increases cohesiveness and makes the mix easier to handle and apply.

Reduced Permeability:

Limits penetration of aggressive agents, improving concrete lifespan.

Typical Applications

Repair mortars and patching compounds.

Tile adhesives and grouts.

Waterproof coatings.

Concrete overlays.

Floor toppings and screeds.

Bonding agents for overlaying old concrete.

Waterproofing slurries.

How to Use SBR Latex Admixture

It is usually added to the mixing water or directly to the dry cementitious mix.

Dosage typically ranges from 5% to 15% by weight of cement (manufacturer’s guidelines should be followed).

Can replace part of the mixing water to maintain workability.

Mixing should be thorough to get a uniform consistency.

Typical Technical Properties

Property Typical Value

Appearance Milky white liquid

Solid content 40-50%

pH 9 to 11

Specific gravity ~1.0 - 1.05

Minimum film forming temp ~10°C

Storage 6-12 months in sealed container, protect from frost

Advantages Over Traditional Admixtures

Polymer modification provides superior bonding and flexibility.

It can enhance mechanical properties and durability.

Can reduce or eliminate the need for curing compounds in some cases.

Precautions

Should be stored away from freezing temperatures.

Use as per manufacturer’s recommended dosage.

Avoid contamination with other chemicals.

Test mix first for compatibility with cement and aggregates.