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

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/ml1.14
Density, ASTM D1475 ,25°C lbs/gal9.6
Flash Point, ASTM D92, °C193
Freeze Point, °C14
Glass Point, by DSC, °C-55
Moisture Content, %0.02
Refractive Index, 25°C1.5361
Solidification Point, °CN/A
Solubility, in water, %0.55
Solubility, water in %1.64
Solubility Parameter, Small’s Hildebrands9.8
Specific Gravity, 25/25°C1.14
Surface Tension, ASTM D1331, 25°C, dynes/cm45.0
Vapor Pressure, 25°C (extrapolated), mmHg9.03×10-5
Viscocity, Brookfield RVT, 20 RPMs at 25°C, cps and mPa.S72
Viscosity, Kinematic, 25deg;C, cSt63
VOC, ASTM D2369, %2.2
Application GroupApplicationDescription
AdhesivesPuttyEffective and economical plasticizer; vehicle used in peroxide paste for putty
AdhesivesWater-based Latex AdhesivesHighly recommended, low VOC plasticizer for water-based latex adhesives
Graphic Arts & PrintingFlexographic InkHighly recommended, low VOC coalescent for flexographic inks and waterborne OPV applications
Paints & CoatingsConcrete and Metal PrimerHighly recommended coalescent for direct-to-metal coatings
Paints & CoatingsExterior Latex PaintHighly recommended coalescent for exterior latex paints
Paints & CoatingsFloor PolishRecommended, non-phthalate plasticizer for floor polish applications, allowing reduced TBEP loading and improved gloss development between consecutive coats, leveling, recoatability, hardness development, removeability, and resistance to soiling, water spots, and powdering
Paints & CoatingsIndustrial CoatingsHighly recommended, low VOC coalescent for industrial coatings applications
Paints & CoatingsInterior Latex PaintHighly recommended coalescent for interior latex paints
Paints & CoatingsLacquers – Nitrocellulosic & AcrylicEffective, low VOC coalescent for nitrocellulosic and acrylic lacquers
Paints & CoatingsSpecial Purpose CoatingsHighly recommended, low VOC coalescent for special purpose coatings applications
PaperPaper CoatingHighly recommended, low VOC coalescent for paper coatings
SealantPolysulfide SealantsGeneral 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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