Sbr Latex Polymer Manufacturers In Hyderabad

What is SBR Latex?

SBR Latex stands for Styrene-Butadiene Rubber Latex. It is a synthetic rubber emulsion produced by the polymerization of styrene and butadiene in water. SBR latex is a milky white, viscous liquid and is widely used in construction, adhesives, coatings, and textiles due to its excellent adhesion, flexibility, water resistance, and durability.

 Chemical Composition

Styrene (C₈H₈): Provides rigidity and strength

Butadiene (C₄H₆): Provides elasticity and flexibility

Typically stabilized with surfactants (like soaps or emulsifiers)

 Properties

Property Value / Description

Appearance Milky white liquid

Solids Content ~50% (varies by grade)

pH 9–11 (alkaline)

Viscosity 50–1000 cps (depends on formulation)

Particle Size 100–300 nm

Film Formation Forms flexible films upon drying

Water Resistance Good, especially when cross-linked

Adhesion Excellent to concrete, cement, and fibers

Applications

 Construction

As a bonding agent in cement and mortar

Enhances waterproofing in coatings and screeds

Used in tile adhesives, plasters, and grouts

 Coatings and Paints

Binder in paints, especially for cementitious surfaces

Improves scrub resistance and flexibility

 Textiles

Coating for non-woven fabrics

Used in carpet backing and fabric finishing

 Adhesives

In pressure-sensitive adhesives (PSAs)

In wood glues, bookbinding, and packaging

 Advantages

Improves flexibility and crack resistance of cement

Enhances adhesion to various substrates

Increases durability and chemical resistance

Reduces water absorption and improves freeze-thaw stability

 Limitations

Sensitive to UV radiation (can degrade over time)

Not suitable for high-heat applications

Requires proper curing to ensure performance

Can be unstable at low pH or in presence of salts

 Storage & Handling

Store at 5–35°C in sealed containers

Avoid freezing or prolonged exposure to air

Shelf life: ~6–12 months depending on the formulation