Emerald Kalama Chemical

Emerald Kalama Chemical

Kalama® VITROFLEX™ A99 Benzoate Plasticizer

Kalama® VITROFLEX™ non-phthalate, benzoate plasticizers have excellent safety and regulatory profiles for polysulfides. They enable formulators to eliminate plasticizers facing scrutiny and regulatory pressure, such as benzyl phthalate and chlorinated paraffins. Because Kalama VITROFLEX Plasticizers have been expressly designed for polysulfides, they also offer excellent performance characteristics, compatibility, and value in this application.

Kalama VITROFLEX A99 is a high-value offering for the A-side of polysulfide sealants. It offers similar benefits to Kalama VITROFLEX A90, including exceptional permanence, low migration, and low fogging. In addition, it maximizes purity to meet the highest performance requirements, such as exceptionally low odor.

Emerald offers solutions for both the A-side (polymer) and B-side (catalyst) of two-part polysulfide sealants. These products are manufactured in Europe, offering an excellent supply chain to serve EMEA customers. Additional solutions for this application include Kalama VITROFLEX A90 and Kalama VITROFLEX B.


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Attribute Value
Assay, as benzoate ester, minimum, % 98.0
Impurities, individual maximum % 0.999
Color, APHA, maximum 100
Hydroxyl number, maximum, mg KOH/g 2
Moisture content, maximum, % 0.07
Typical Properties
Assay, as benzoate ester, % 99.7
Acidity, as benzoic acid, % 0.02
Freeze point, °C <-20
Hydroxyl number, mg KOH/g 0.7
Moisture content, % 0.04
Specific gravity, 25/25°C 1.1475
Viscosity, Brookfield RVT, 20 RPMs at 25°C, cps and mPa·s 95
VOC, ASTM D2369, % 3.2
FDA Coverages
21 CFR 175.105 Adhesives (PART 175 – INDIRECT FOOD ADDITIVES: ADHESIVES AND COMPONENTS OF COATINGS, Subpart B – Substances for Use Only as Components of Adhesives)
Application Group Application Description
Sealant Polysulfide Sealants Non-phthalate plasticizer tailored for permanence, low fogging, and low odor in the A-side of 2K polysulfide sealants.
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Kalama VITROFLEX is a registered trademark of Emerald Kalama Chemical, LLC for its line of benzoate plasticizers. It is not associated with Viking Chemical, ARKEMA, or the VIKOFLEX product line.


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