Emerald Kalama Chemical

Emerald Kalama Chemical

K-FLEX® 850S Non-Phthalate Plasticizer

K-FLEX® 850S is a dibenzoate plasticizer optimized for performance, compatibility, and economy in waterborne latex applications. It is a very effective, low-VOC choice for waterborne adhesives, as well as hot melt adhesives and putty. With FDA approvals for direct food contact, K-FLEX 850S is a viable option for food packaging adhesives.

In both VAE an PVAc emulsions, K-FLEX 850S provides excellent performance properties, such as wet tack, extended open times, chalk point/Tg suppression, reduced set times, and strong viscosity response of the base emulsion to the plasticizer (demonstrating compatibility and allowing flexibility). K-FLEX 850S can also be used in direct-to-metal and corrosion resistant coatings, where it demonstrates notable hardness development and salt fog resistance. K-FLEX 850S is not recommended for PVC applications.

Logo for K-FLEX Plasticizers, Coalescents, and Modifiers from Emerald

Attribute Value
Acidity% (as benzoic acid, maximum %) 0.3
Assay% (As benzoate ester, Minimum,% ) 98.0
Color Maximum (APHA) 150
Typical Properties
Color (APHA) 40
Density, ASTM D1475, 25°C g/ml 1.14
Density, ASTM D1475 ,25°C lbs/gal 9.6
Flash Point, ASTM D92, °C 193
Freeze Point, °C 14
Glass Point, by DSC, °C -55
Moisture Content, % 0.02
Refractive Index, 25°C 1.5361
Solidification Point, °C N/A
Solubility, in water, % 0.55
Solubility, water in % 1.64
Solubility Parameter, Small’s Hildebrands 9.8
Specific Gravity, 25/25°C 1.14
Surface Tension, ASTM D1331, 25°C, dynes/cm 45.0
Vapor Pressure, 25°C (extrapolated), mmHg 9.03×10-5
Viscocity, Brookfield RVT, 20 RPMs at 25°C, cps and mPa.S 72
Viscosity, Kinematic, 25deg;C, cSt 63
VOC, ASTM D2369, % 2.2
Application Group Application Description
Adhesives Putty Effective and economical plasticizer, a vehicle used in peroxide paste for putty
Adhesives Water-based Latex Adhesives Highly recommended low VOC plasticizer for water-based latex adhesives
Graphic Arts & Printing Flexographic Ink Highly recommended low VOC coalescent for flexographic ink and waterborne OPV applications.
Paints & Coatings Concrete and Metal Primer Highly recommended coalescent in direct-to-metal coatings.
Paints & Coatings Exterior Latex Paint Highly recommended coalescent for exterior latex paints.
Paints & Coatings Industrial Coatings Highly recommended low VOC coalescent for industrial coatings applications.
Paints & Coatings Interior Latex Paint Highly recommended coalescent for interior latex paints.
Paints & Coatings Lacquers – Nitrocellulosic & Acrylic Effective low VOC coalescent for nitrocellulosic & acrylic lacquers.
Paints & Coatings Special Purpose Coatings Highly recommended low VOC coalescent for special purpose coatings applications.
Paper Paper Coating Highly recommended low VOC Coalescent for paper coatings.
Sealant Polysulphide Sealants General plasticizer with excellent compatibility for polysulfide sealants.

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K-FLEX is a registered trademark of Emerald Kalama Chemical, LLC for its line of low-VOC plasticizers and coalescents. K-FLEX is also a registered trademark of King Industries, Inc. for its line of polyester and urethane polyols and resin modifiers.


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