Kalama® VITROFLEX® non-phthalate, benzoate plasticisers have excellent safety and regulatory profiles for polysulphides. They enable formulators to eliminate plasticisers facing scrutiny and regulatory pressure, such as benzyl phthalate and chlorinated paraffins. Because Kalama VITROFLEX Plasticisers have been expressly designed for polysulphides, they also offer excellent performance characteristics, compatibility, and value in this application.
Kalama VITROFLEX A90 is tailored for the A-side of polysulphide sealants, where it provides exceptional permanence and low migration. These properties are critical to ensure low fogging in insulated glass, the largest application for polysulphide sealants.
Emerald offers solutions for both the A-side (polymer) and B-side (catalyst) of two-part polysulphide sealants. These products are manufactured in Europe, offering an excellent supply chain to serve EMEA customers. Additional solutions for this application include Kalama VITROFLEX A99 and Kalama VITROFLEX B.
| Attribute | Value |
|---|---|
| Specifications | |
| Acidity, as benzoic acid, maximum, % | 0.1 |
| Assay, as benzoate ester, minimum, % | 98 |
| Colour, APHA, maximum | 100 |
| Hydroxyl number, maximum, mg KOH/g | 15 |
| Moisture content, maximum, % | 0.2 |
| Specific gravity, 20°C | 1.167–1.175 |
| Refractive index, 20°C | 1.539–1.545 |
| Viscosity, Brookfield RVT, 50 RPMs at 20°C, cps | 80–120 |
| Typical Properties | |
| Assay, as benzoate ester, % | 98.7 |
| Acidity, as benzoic acid, % | 0.06 |
| Boiling point, 5 mmHg, °C | 176 |
| Colour, APHA | 22 |
| Freeze point, °C | 20 |
| Hydroxyl number, mg KOH/g | 8 |
| Moisture content, % | 0.04 |
| Refractive index, 25°C | 1.54 |
| Specific gravity, 25/25°C | 1.17 |
| VOC, ASTM D2369, % | 0. |
| 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) |
| 21 CFR 176.170 | Components of paper and paperboard in contact with aqueous and fatty foods |
| 21 CFR 176.180 | Components of paper and paperboard in contact with dry food |
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