What is Styrene Butadiene Latex CAS 9003-55-8?

It is a milky white, anionic, water-based dispersion of a styrene-butadiene copolymer, commonly supplied as carboxylated SBR latex or XSBR. The carboxylation improves mechanical stability, polar adhesion, and compatibility with fillers such as calcium carbonate and clay.

What is the difference between carboxylated SBR Latex and standard SBR Latex?

Carboxylated SBR contains carboxylic acid groups on the polymer backbone. These groups reduce coagulation under high-speed shear and strengthen adhesion to paper fillers, textile fibers, and cementitious aggregates, making XSBR preferred for demanding paper coating and construction applications.

Which industries use SBR Emulsion and which grade should I choose?

Paper coating grades optimize gloss, smoothness, ink holdout, and printability. Carpet and textile grades focus on tuft lock, flexibility, and dimensional stability. Construction grades improve cement mortar bond strength, water resistance, and crack resistance, while specially purified grades can be used as anode binders.

How do solid content and glass transition temperature affect SBR Latex selection?

Solid content, typically around 50%, affects binder loading, drying demand, and film thickness. The Tg controls film stiffness and flexibility; a lower Tg gives a softer, more flexible film, while a higher Tg improves hardness and block resistance, so the ratio is selected for the substrate and end use.

Why is low residual styrene important in SBR Latex?

Residual styrene can contribute odor and limit use in indoor paper, carpet, and construction products. Advanced steam stripping and headspace GC testing keep residual styrene low, producing a lower-odor latex that better meets environmental and indoor-air requirements.

Styrene Butadiene Latex (SBR Emulsion) CAS 9003-55-8

Styrene Butadiene Emulsion CAS 9003-55-8 is a stable aqueous dispersion of carboxylated styrene-butadiene copolymer , functioning primarily as a universal binder in paper coating, carpet backing, and construction materials. Commonly known as SBR Latex, this milky white liquid is engineered to provide superior adhesion, water resistance, and flexibility to various substrates. It is extensively utilized to enhance the printability of coated paper, bind fibers in tufted carpets, and serves as a critical modifier in cementitious mixtures (waterproofing and repair mortars) to improve bond strength and crack resistance. We provide professional access to this material with competitive factory pricing and the ability to meet customized specifications (varying Styrene/Butadiene ratios and solid content typically 50%) for various manufacturing requirements. Our commitment to technical transparency ensures that every shipment is accompanied by comprehensive MSDS, TDS, COA documentation to support your quality assurance protocols, and we maintain capacity for consistent bulk supply to facilitate large-scale industrial operations.

CAS: 9003-55-8
Synonyms: SBR Latex, Carboxylated Styrene Butadiene Latex, Styrene-butadiene copolymer latex, XSBR, SB Latex
Molecular Formula: (C₈H₈·C₄H₆)ₙ
Grade: Paper Coating Grade, Carpet/Textile Grade, Construction Grade.
Package: 200kg Plastic Drum, 1000kg IBC Tank, or 23MT Flexitank.

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Product Description

Styrene Butadiene (CAS 9003-55-8) is a milky white, anionic aqueous dispersion of a copolymer produced from styrene and butadiene. It is modified with carboxylic groups (Carboxylated SBR) to significantly enhance its mechanical stability, chemical stability, and adhesion properties compared to standard non-modified latex.

Our SBR Latex series offers excellent binding strength, high compatibility with fillers (such as calcium carbonate and clay), and superior film-forming characteristics. It is engineered to provide the optimal balance between stiffness and flexibility, making it the preferred binder in the paper coating and textile industries.

Need a specific Tg (Glass Transition Temp) or Solid Content? 📧 Email: info@industrochem.com

We utilize advanced steam stripping technology to ensure low residual monomer content, resulting in a low-odor product that meets stringent environmental standards for indoor applications.

1 Physicochemical Properties (Technical Data)

2 Applications

3 Quality Assurance (QA/QC)

4 Storage, Handling & Safety

Physicochemical Properties (Technical Data)

The following specifications reflect our Standard Textile/Carpet Grade, which represents the typical high-quality standard from leading Chinese export facilities.

Property	Specification	Test Method
Appearance	Milky white liquid, no foreign matter	Visual Inspection
Solid Content	50.0%±1.0%	Gravimetric (105°C)
pH Value (25°C)	7.5 – 9.0	pH Meter
Viscosity (25°C)	100 – 300 mPa·s	Brookfield Viscometer (NDJ)
Residual Styrene	≤0.05% (500ppm)	Gas Chromatography (GC)
Surface Tension	35 – 45 mN/m	Tensiometer
Mechanical Stability	≤0.1% (Coagulum)	High-Speed Stirring Test
Glass Transition Temp (Tg)	-10°C to +20°C (Adjustable)	DSC
Solubility	Dispersible in water	–
Emulsifier Type	Anionic	–

Applications

SBR Emulsion is a versatile binder used across multiple industries:

1. Paper & Paperboard Industry:

Coating Binder: Used as the primary binder in paper coating formulations. It enhances the surface gloss, smoothness, and ink receptivity of coated paper, ensuring sharp printing results.

2. Textiles & Carpets (Major Application):

Carpet Backing: Acts as the adhesive to lock tufts into the primary backing and bond the secondary backing (jute or synthetic). It provides excellent pile anchorage and dimensional stability.
Non-Wovens: Used for impregnation and coating of needle-punched fabrics to provide stiffness and durability.

3. Construction & Adhesives:

Cement Modification: When added to cement mortars, SBR latex improves bond strength, water resistance, and flexural strength. It is widely used in waterproof slurry and tile adhesives.
Road Surfacing: Used in asphalt modification to improve elasticity and prevent cracking (Specific Cationic grades available upon request).

4. Lithium-Ion Batteries:

Anode Binder: Specially purified grades are used as a binder for graphite anodes in Li-ion batteries due to their electrochemical stability.

Quality Assurance (QA/QC)

At Industrochem, we recognize that latex stability is critical for your production process. Our manufacturing follows ISO 9001:2015 and ISO 14001 standards.

Particle Size Control: We use Malvern Laser Particle Size Analyzers to monitor the average particle diameter. A uniform particle size ensures consistent viscosity and binding power.
Residual Monomer Testing: Utilizing Headspace Gas Chromatography (HS-GC), we strictly control residual styrene levels to prevent odor issues in finished consumer goods (carpets/paper).
Mechanical Stability: Every batch undergoes rigorous high-speed agitation testing to ensure the emulsion does not demulsify or form coagulum during transport or high-shear mixing in your factory.

Storage, Handling & Safety

Storage Conditions:

Temperature Sensitivity:CRITICAL. SBR Latex is water-based. Store between 5°C and 35°C.
- Do Not Freeze: Freezing will cause irreversible coagulation (breaking the emulsion).
- Avoid Overheating: Prolonged exposure to high heat can cause surface skinning.
Containers: Keep containers tightly closed to prevent evaporation and crust formation.
Shelf Life: 6 months from the date of manufacture under proper storage conditions.

Safety Precautions (HSE):

Toxicity: SBR Emulsion is non-toxic and non-flammable.
PPE Recommendations:
- Skin: Wear rubber gloves and protective clothing to avoid prolonged skin contact, which may cause mild irritation due to the alkaline pH.
- Eyes: Wear safety goggles. In case of contact, rinse immediately with plenty of water.
- Ventilation: Ensure good ventilation in the processing area.

Source premium SBR Latex directly from the manufacturer.

Whether for high-gloss paper coating or durable carpet backing, we provide the stability you need.

👉 Get a Quote: info@industrochem.com

FAQ - Technical & Supply Chain

Q:
What is Styrene Butadiene Latex CAS 9003-55-8?

A: It is a milky white, anionic, water-based dispersion of a styrene-butadiene copolymer, commonly supplied as carboxylated SBR latex or XSBR. The carboxylation improves mechanical stability, polar adhesion, and compatibility with fillers such as calcium carbonate and clay.
Q:
What is the difference between carboxylated SBR Latex and standard SBR Latex?

A: Carboxylated SBR contains carboxylic acid groups on the polymer backbone. These groups reduce coagulation under high-speed shear and strengthen adhesion to paper fillers, textile fibers, and cementitious aggregates, making XSBR preferred for demanding paper coating and construction applications.
Q:
Which industries use SBR Emulsion and which grade should I choose?

A: Paper coating grades optimize gloss, smoothness, ink holdout, and printability. Carpet and textile grades focus on tuft lock, flexibility, and dimensional stability. Construction grades improve cement mortar bond strength, water resistance, and crack resistance, while specially purified grades can be used as anode binders.
Q:
How do solid content and glass transition temperature affect SBR Latex selection?

A: Solid content, typically around 50%, affects binder loading, drying demand, and film thickness. The Tg controls film stiffness and flexibility; a lower Tg gives a softer, more flexible film, while a higher Tg improves hardness and block resistance, so the ratio is selected for the substrate and end use.
Q:
Why is low residual styrene important in SBR Latex?

A: Residual styrene can contribute odor and limit use in indoor paper, carpet, and construction products. Advanced steam stripping and headspace GC testing keep residual styrene low, producing a lower-odor latex that better meets environmental and indoor-air requirements.

Ordering & Documentation

Key information for document requests, quotations, and supply planning.

Documents

COA, TDS, SDS/MSDS and packing details are available on request.

Quotation

Send the CAS number, grade, quantity, packing preference and destination.

Sample & Supply

Support is available for samples, trial orders, bulk and repeat supply.

Storage & Shipping

Product-specific conditions are confirmed before order.

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