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.
|Acidity% (as benzoic acid, maximum %)||0.3|
|Assay% (As benzoate ester, Minimum,% )||98.0|
|Color Maximum (APHA)||150|
|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|
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.