Kemsurf KAS30

Kemsurf KAS30 is a disodium C10–12 alkyl ethoxy sulfosuccinate designed as a primary anionic emulsifier for a wide range of emulsion polymerisation systems. It offers excellent surface and interfacial tension reduction, strong electrostatic + steric stabilisation, and very good mechanical/electrolyte stability, making it highly effective in:
•    Acrylic
•    Vinyl–acrylic
•    Styrene–acrylic
•    EVA polymer dispersions 

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Key Features

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Low Surface & Interfacial Tension
- Provides excellent wetting and rapid spreading over hydrophobic monomers and surfaces.
- Promotes efficient droplet breakup and controlled micelle nucleation in emulsion polymerisation.

Strong Electrostatic & Steric Stabilisation
- Anionic sulfosuccinate head group delivers effective electrostatic stabilisation of polymer particles.
- Ethoxylated chain provides steric stabilisation, reducing coagulum formation and improving latex stability.

High Stability Under Demanding Conditions
- Exhibits excellent resistance to mechanical shear and agitation during processing.
- Maintains dispersion stability in the presence of electrolytes, pigments, fillers, acids and alkalis, supporting robust high‑solids latex systems.

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Applications

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Kemsurf KAS30 acts as a primary emulsifier whose role is to:

• Create stable monomer emulsions before polymerisation.

• Generate and stabilise micelles, which become polymerisation loci.

• Control particle size, molecular weight distribution, and latex stability.

• Provide electrostatic and steric stabilisation, maintaining latex integrity under shear, agitation, and electrolyte stress.

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Kemsurf KAS30 is suitable for:

• Acrylic emulsions

• Vinyl–acrylic emulsions

• Styrene–acrylic emulsions

• EVA emulsions

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These polymers feed into:

• Decorative & industrial coatings

• Adhesives (PSA, EVA, packaging)

• Paper coatings

• Construction polymers

• Textile & non woven binders 

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Acrylic Polymer Systems - Acrylic latexes are one of the largest global users of sulfosuccinate stabilised systems.

• It emulsifies soft and hard monomers such as butyl acrylate, methyl methacrylate, ethyl acrylate, and specialty functional monomers.

• Forms fine latex particles with narrow distribution, improving film quality and mechanical performance.

• Enhances electrolyte stability, allowing formulators to include pigments, fillers, and functional additives.

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Acrylic latex end use industries:

• Decorative interior & exterior paints

• Industrial coatings and OEM finishes

• Construction waterproofing emulsions

• Pressure sensitive adhesives

• Textile finishing binders

• Paper coatings (gloss, satin, barrier)

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Vinyl Acrylic Polymer Systems - Vinyl acrylics combine low cost vinyl acetate with performance boosting acrylic monomers.

• Provides rapid monomer solubilisation and micelle formation for VA/BA or VA/MMA systems.

• Controls particle nucleation → leads to low viscosity latexes suitable for high pigment volume concentration (PVC) paints.

• Improves wet adhesion and scrub resistance when combined with acrylic comonomers.

 

Vinyl acrylic end use industries:

• Trade and retail emulsion paints

• Primer/sealer coatings

• Adhesives for paper bonding, tapes and labels

• Carpet backings

• Non woven binders

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Styrene Acrylic Polymer Systems - These polymers offer hardness, water resistance, and chemical resistance.

• Emulsifies hydrophobic styrene and acrylates to create stable co polymers.

• Supports high temperature polymerisations due to good thermal and mechanical stability.

• Produces latexes with improved gloss, water resistance, and block resistance.

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Styrene acrylic end use industries:

• High gloss architectural coatings

• Printing inks & overprint varnishes

• Paper coatings & cardboard surface treatments

• Industrial can coatings

• Durable construction coatings

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EVA (Ethylene Vinyl Acetate) Polymer Systems - EVA emulsions are widely used for flexibility and adhesion.

• Stabilises vinyl acetate droplets during polymerisation alongside ethylene under pressure.

• Ensures formation of uniform, flexible polymer particles, improving adhesive strength.

• Enhances freeze–thaw stability and thickener compatibility in EVA dispersions.

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EVA latex end use industries:

• Packaging adhesives

• Bookbinding adhesives

• Construction adhesives (flooring, tile, carpet)

• Flexible coatings and sealants

• Paper lamination adhesives

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Recommended Nonionic Co Stabilisers

Lanspec EMP208 (Conventional Choice)

• Standard, widely compatible nonionic for EP

• Conventional approach to post polymerisation stabilisation

• Good steric stabilisation and storage stability

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Best for formulators who want:

• A proven, familiar, industry standard stabiliser

• Reliable late stage particle stabilisation

• General purpose acrylic, SA, VA and EVA latex production

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Lanspec HSR (Enhanced Performance Choice)

• Improves water resistance of the final latex

• Increases scrub resistance of coatings

• Helps reduce water sensitivity in wet rated coatings

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Best for formulators who want:

• Higher end use durability

• Better wet scrub ratings

• Better water resistance for architectural or industrial coatings

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Use Level Guidance

 

Component                     Suggested Use Level
Kemsurf KAS30 (primary)   1.0 – 5.0 % on monomer
Lanspec EMP208                 0.1 – 1.0 % (typically post polymerisation)
Lanspec HSR                        0.05 – 0.5 % depending on water sensitivity/scrub performance                                                    required​​