K-Flex DP is dipropylene glycol dibenzoate, which is one of the oldest members of the plasticizer family and one of the most versatile polar plasticizers still commercially available.  K-Flex DP is compatible with a wide range of polar polymers and rubbers and is often blended with other plasticizers such as K-Flex DE (diethylene glycol dibenzoate).


Attribute Value
Acidity% (as benzoic acid, maximum %) 0.1
Color Maximum (APHA) 100
Assay% (As benzoate ester, Minimum,% ) 98.0
Typical Properties
Color (APHA) 50
Density, ASTM D1475, 25C g/ml 1.11
Density, ASTM D1475 ,25C lbs/gal 9.3
Flash Point, ASTM D92, C 204
Freeze Point, C -51
Glass Point, by DSC, C -51
Moisture Content, % 0.02
Refractive Index, 25C 1.5238
Solidification Point, C -31
Solubility, in water, % 0.20
Solubility, water in % 0.40
Solubility Parameter, Small's Hildebrands 9.5
Specific Gravity, 25/25C 1.11
Surface Tension, ASTM D1331, 25C, dynes/cm 42.8
Vapor Pressure, 25C (extrapolated), mmHg 2.57x10-6
Viscocity, Brookfield RVT, 20 RPMs at 25C, cps and mPa.S 99
Viscosity, Kinematic, 25deg;C, cSt 89
VOC, ASTM D2369, % 3.2
Application Group Application Description  
Adhesives Putty Effective low VOC plasticizer used in putty.
Adhesives Water-based Latex Adhesives Effective low VOC plasticizer for water-based latex adhesives.
Agricultural Crop Protection Highly Recommended low VOC plasticizer used in pesticides.
Paints & Coatings Lacquers - Nitrocellulosic & Acrylic Highly Recommended low VOC coalescent for Nitrocellulosic & Acrylic lacquers.
Personal Care Depilatory Wax Highly Recommended, FDA approved plasticizer used as Viscosity control aid in wax based-hair removal products.
Personal Care Nail Care Highly Recommended, FDA approved plasticizer with good competibility in polymers for nail lacquers.
Sealant Polysulphide Sealants Effective low VOC plasticizer for Polysulphide sealants.
Sealant Water-based Latex Caulks & Sealants Effective low VOC plasticizer for water-based latex caulks & sealants.
Vinyl Plastisol Printing Highly Recommended low VOC plasticizer used in Plastisol printing.
Brochures Line Cards Articles / White Papers

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K-FLEX is a registered trademark of Emerald Performance Materials, 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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