Emerald Kalama Chemical

Emerald Kalama Chemical

K-FLEX® 500P Low-VOC Coalescent

K-FLEX® 500P is a dibenzoate coalescent for environmentally friendly, low-VOC paints. Specifically designed for the coatings industry, K-FLEX 500P provides formulators with a solution that meets regulations and consumer demands for lower VOC content, without sacrificing performance and value.

Offering excellent scrub resistance and gloss, K-FLEX 500P aids in the development of desirable performance characteristics while offering improved handling due to low temperature flexibility. Its performance and value make it a viable replacement to higher-volatility coalescents such as TMPDMIB (2,2,4-trimethyl-1,3-pentanediol monoisobutyrate) or even low-VOC types such as triethylene glycol di-2-ethylhexanoate.

K-FLEX 500P is also used as a non-phthalate plasticizer in adhesives, plastisols, and other applications requiring a polar plasticizer with a lower VOC content.

Logo for K-FLEX Plasticizers, Coalescents, and Modifiers from Emerald

Attribute Value
Acidity% (as benzoic acid, maximum %) 0.3
Assay% (As benzoate ester, Minimum,% ) 98.0
Color Maximum (APHA) 100
Typical Properties
Boiling Point (5 mm Hg,°C) 236
Density, ASTM D1475, 25°C g/ml 1.15
Density, ASTM D1475 ,25°C lbs/gal 9.6
Flash Point, ASTM D92, °C 232
Freeze Point, °C 0
Glass Point, by DSC, °C -54
Moisture Content, % 0.02
Refractive Index, 25°C 1.5363
Solubility, in water, % 0.09
Solubility, water in % 0.61
Solubility Parameter, Small’s Hildebrands 9.8
Specific Gravity, 25/25°C 1.15
Surface Tension, ASTM D1331, 25°C, dynes/cm 44.4
Vapor Pressure, 25°C (extrapolated), mmHg 1.0 x 10-8
Viscocity, Brookfield RVT, 20 RPMs at 25°C, cps and mPa.S 107
Viscosity, Kinematic, 25deg;C, cSt 93
VOC, ASTM D2369, % 0.9
FDA Coverages
21 CFR 175.105 Yes
21 CFR 176.170 Yes
22 CFR 176.180 Yes
Application Group Application Description
Paints & Coatings Concrete and Metal Primer Effective coalescent in direct-to-metal coatings.
Paints & Coatings Exterior Latex Paint Ultra Low VOC, Highly Recommended coalescent for exterior paints.
Paints & Coatings Industrial Coatings Ultra Low VOC, Highly Recommended coalescent for Industrial coatings applications.
Paints & Coatings Interior Latex Paint Ultra Low VOC, Highly Recommended coalescent for Interior latex paints.
Paints & Coatings Lacquers – Nitrocellulosic & Acrylic Ultra Low VOC, Highly Recommended coalescent for Highly Recommended for Nitrocellulosic & Acrylic laqures.
Paints & Coatings Special Purpose Coatings Ultra Low VOC, Highly Recommended coalescent for special purpose coatings applications.

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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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