K-FLEX 850S

LOW-VOC DIBENZOATE PLASTICIZER OPTIMIZED FOR USE IN WATERBORNE LATEX APPLICATIONS, ESPECIALLY ADHESIVES
  • Product Type: Dibenzoate
  • Master Product Number: MITM12110
  • Product SKUs: ITM25062, ITM25730, ITM19478, ITM19482, ITM21274, ITM21720

Product Details

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.
 
Attribute Value
Specifications
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
Solubility, in water, % 0.55
Solubility Parameter, Small’s Hildebrands 9.8
Specific Gravity, 25/25°C 1.14
Surface Tension, ASTM D1331, 25°C, dynes/cm 45.0
Viscocity, Brookfield RVT, 20 RPMs at 25°C, cps and mPa.S 72
Viscosity, Kinematic, 25deg;C, cSt 63
VOC, ASTM D2369, % 2.2

Typical Applications

Application Group Application Description
Adhesives Putty Effective and economical plasticizer; 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 inks and waterborne OPV applications
Paints & Coatings Concrete and Metal Primer Highly recommended coalescent for direct-to-metal coatings
Paints & Coatings Exterior Latex Paint Highly recommended coalescent for exterior latex paints
Paints & Coatings Floor Polish Recommended, 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 & 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 and 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 Polysulfide Sealants General plasticizer with excellent compatibility for polysulfide sealants

About LANXESS Emerald

Today’s toughest, highest performing adhesives, coatings, sealants, and vinyl rely on Emerald’s innovative portfolio of industrial specialties. A wide range of non-phthalate plasticizers, low-VOC coalescents, modifiers, and more deliver critical performance characteristics, such as durability and flexibility.

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