K-FLEX® DP

K-FLEX® DP is dipropylene glycol dibenzoate, which is one of the oldest members of the benzoate plasticizer family and one of the most versatile polar, high solvating 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® DP (diethylene glycol dibenzoate).

Principal: LANXESS Emerald

Functions: Plasticizer, Plasticizer

End Uses: Hair Removal Products, Latex Adhesive, Latex Caulk, Polysulfide Sealant

Labeling Claims: Acrylamide-free, Allergen-free, Asbestos-free, Azo Dyes-free, Biocides-free, Bisphenol A-free, Bovine Spongiform Encephalopathy (BSE)-free, Cobalt-free, Colophony-free, Colorants-free, Epoxy Derivatives-free, Gold-free, Heavy Metal-free, Low VOC, Melamine-free, Mica-free, Microplastics-free, Nitrosamines-free, Non-Genetically Modified Organism (GMO), Ozone Non Depleting, Per & Polyfluoroalkyl Substances (PFAS)-free, Perfluorooctane Sulfonate (PFOS)-free, Perfluorooctanoic Acid (PFOA)-free, Persistent Organic Pollutants (POP)-free, Pesticide-free, Phthalates-free, Polyvinyl Chloride (PVC)-free, Radioactive-free, Selenium-free, TSE-free, Tantalum-free, Tungsten-free

Features: High Solvating, Low VOC

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Identification & Functionality

CASE Ingredients Functions
Cosmetic Ingredients Functions
Country of Origin
Product Code
MITM12107
Technologies
Product Families

Features & Benefits

Applications & Uses

Adhesive & Sealant End Applications
Compatible Substrates & Surfaces
Personal Hygiene Applications
Markets
Applications
Product Applications

K-FLEX® DP is useful in a wide variety of applications including:

  • Latex adhesives
  • Latex caulks and sealants
  • Sealants
  • Coatings
  • Plastisols
  • Melt compounded flexible vinyl compositions

K-FLEX® DP is an excellent choice for applications requiring a high solvating plasticizer. In addition, K-FLEX® DP can be used as a plasticizer in U.S. food packaging adhesives in accordance with the applicable regulations. Unlike other common dibenzoate products, K-FLEX® DP does not crystallize, making it a sound choice for facilities without heated storage.

Application Description
Putty Effective low VOC plasticizer used in putty
Water-based Latex Adhesives Effective plasticizer for water-based latex adhesives
Crop Protection Highly recommended, low VOC adjuvant used in pesticides
Lacquers - Nitrocellulose & Acrylic Highly recommended, low VOC coalescent for nitrocellulosic and acrylic lacquers
Personal Care Plasticizer used as viscosity control aid in wax-based hair removal products
Polysulfide Sealants Effective, low VOC plasticizer for polysulfide sealants
Water-based Latex Caulks & Sealants Effective, low VOC plasticizer for water-based latex caulks and sealants
Plastisol Printing Highly recommended, low VOC plasticizer used in plastisol printing

 

 

Properties

Physical Form

Technical Details & Test Data

Viscosity vs Temperature Graph

Packaging & Availability

Principal Information

Group Principal Number
S000008
Principal

Storage & Handling

Storage Conditions
  • This product is stable and is not considered corrosive for metals and glass. The organic products of combustion are carbon oxides and water.
  • This product should be stored away from excessive heat, sources of ignition and reactive materials. Limit indoor storage to areas equipped with an appropriate sprinkler system.
  • Typical storage systems keep this product at approximately 86-100°F (30-38°C) and atmospheric pressure. If the moisture content of the ester is critical, the tank should be padded with nitrogen or vented to the atmosphere through a desiccant dryer. An over pressure/vacuum relief device should be provided for the tank.
  • K-FLEX DP does not have a simple freeze point, instead forming a glass at very low temperatures. It can become very viscous at low temperatures, so it is therefore recommended that storage tanks be heated and insulated and that pumps and transfer piping also be heat-traced and insulated.

Bulk Tank: K-FLEX® plasticizers may be stored in type 304 stainless steel insulated and heated tanks. Storage tanks should be nitrogen padded to reduce discoloration of the product. Heat traced, type 304 stainless steel pipe and valves should also be used.

275 Gallon (Intermediate Bulk Container) Tote: The tote should be kept in a warm location >70°F (21°C) to prevent material from becoming too viscous and difficult to remove from the tote bin. If the material becomes too viscous or partially frozen, totes may be heated using heating blankets/jackets or a hot box to melt the material. Special attention must be taken to insure that the tote is completely sealed against moisture and oxygen/air during heating.

Other

Appearance
Clear colorless to pale yellow liquid
Color (SDS)
Clear colorless to light yellow
Explosive Nature (SDS)
Not explosive
Insoluble in (SDS)
Water
Item Number
Odor
Ester like odor
Odor (SDS)
Slightly aromatic
Other Hazards
None known
Oxidizing Properties (SDS)
Non oxidising
USA/DOT UN Number
Not Applicable
Optical Properties
ValueUnitsTest Method / Conditions
Color Scalemax. 100.0 APHAAPHA
Refractive Index1.5238-at 25°C
Chemical Properties
ValueUnitsTest Method / Conditions
Assaymin. 98.0 %%as benzoate ester
Total Aciditymax. 0.1 %%benzoic acid
Shelf Life & Stability
ValueUnitsTest Method / Conditions
Shelf Life730.0 dd
Physical Properties
ValueUnitsTest Method / Conditions
Boiling Point195.0 °C°C
Boiling Pointmin. 350.0 °C°Cat 750mmHg
Density9.3 lb/gallb/galASTM D1475 at 25°C
Flash Point204.0 °C°CASTM D92
Glass Transition Temperature (Tg)-51.0 °C°CDifferential Scanning Calorimetry
Kinematic Viscosity89.0 cStcStAt 25°C
Moisture Content0.02 %%
Solidification Point-31.0 °C°C
Solubility Parameter9.5 cal/cm³cal/cm³Small's, Hildebrands
Solubility in Water0.4 %%in water
Specific Gravity1.14-at 25/25°C
Surface Tension42.8 dyn/cmdyn/cmASTM D1331
Viscosity99.0 cPscPsBrookfield Viscometer at 25°C, 20 Rpm
Material Composition
ValueUnitsTest Method / Conditions
Volatile Organic Compounds (VOC)3.2 %%ASTM D2369
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Boiling Point (SDS)min. 350.0 °C°CAt 1013.25 Hpa
Density (SDS)1.11 g/cm³g/cm³at 68°F
Flash Point (SDS)204.0 °C°CASTM D92
Kinematic Viscosity (SDS)min. 89.0 mm²/smm²/sAt 77°F
Kinematic Viscosity (SDS)max. 35.0 mm²/smm²/sAt 104°F
Log Partition Coefficient (Log Pow) (SDS)3.9-log Pow, Octanol Water
Melting Point (SDS)max. -20.0 °C°CAt 1013.25 Hpa
Relative Density (SDS)1.11-
Relative Vapor Density (SDS)11.8-air =1
Surface Tension (SDS)42.8 mN/mmN/mat 77°F
Vapor Pressure (SDS)0.0000034 hPahPaat 77°F, extrapolated