Sbr Latex Manufacturers In Tamil Nadu

SBR Latex (Styrene-Butadiene Rubber latex) is a synthetic rubber emulsion that is widely used in various industries due to its excellent adhesion, flexibility, abrasion resistance, and water resistance.

🔹 Basic Composition

SBR latex is made by the emulsion polymerization of:

Styrene (C₈H₈) – provides hardness and strength

Butadiene (C₄H₆) – provides flexibility and toughness

🔹 Key Properties

Property Description

Appearance Milky white liquid

Solids content 45–55% (varies by grade)

pH 8–10 (alkaline)

Viscosity 50–500 cP (varies with formulation)

Glass Transition Temp. (Tg) ~ -50°C to 0°C depending on styrene content

Film-forming Yes, forms flexible, water-resistant films

Tensile Strength Moderate to high (3–10 MPa typically)

🔹 Applications

SBR latex is widely used in:

🔧 Construction

Cement and mortar modification: Enhances bonding, flexibility, and water resistance.

Waterproof coatings: For basements, terraces, and tanks.

Adhesives: Tile adhesives and carpet backing.

📦 Paper Industry

Paper and paperboard coating: Improves gloss, printability, and strength.

🧪 Textiles

Non-woven fabrics: As a binder for fibers.

Textile finishing: For improved durability and handle.

🎨 Paints & Coatings

Binder in water-based paints, primers, and sealers.

🔹 Advantages

Good mechanical properties and abrasion resistance

Stable emulsion – long shelf life

Good chemical resistance (to alkalis, mild acids)

Compatible with cementitious materials

Low cost compared to natural rubber

🔹 Limitations

Limited UV resistance

Poor resistance to oil and solvents

May need preservatives to avoid microbial growth in storage

🔹 Safety & Handling

Non-toxic in cured form

In liquid form:

Can cause skin and eye irritation

Use PPE (gloves, goggles)

Store in a cool, dry place, away from freezing temperatures