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 B enables formulators to achieve desirable characteristics in the B-side of polysulphide sealants. These include: faster hardness development, improved lap shear strength, excellent flexibility and adhesion, non-settling (high viscosity stabilization), and equivalent pot life to other common plasticisers.
Emerald offers solutions for both the “A” (polymer) and “B” (catalyst) sides 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 A90.
| Attribute | Value |
|---|---|
| Specifications | |
| Acidity, acid no | 1.5 |
| Colour Max (Gardner) | 2.0 |
| Hydroxyl Number, mg NaOH/g sample, max | 30 |
| Viscosity, Brookfield RVT, 20 RPMs at 25°C, cps and mPa·s | 730-930 |
| Typical Properties | |
| Boiling Point (5 mm Hg,°C) | 206 |
| Boiling Point, extrapolated to 760 mm Hg, °C | 322 |
| Colour (Gardner) | 0 |
| Density, ASTM D1475, 25°C g/ml | 1.15 |
| Density, ASTM D1475, 25°C lbs/gal | 9.63 |
| Flash Point, ASTM D92, °C | 232 |
| Freeze Point, °C | <-20 |
| Glass Point, by DSC, °C | 50 |
| Hydroxyl Number (mg NaOH/g) | 25 |
| Moisture Content, % | 0.06 |
| Solubility, in water, % | 1.13 |
| Solubility, water in % | 0.08 |
| Specific Gravity, 25/25°C | 1.15 |
| Surface Tension, ASTM D1331, 25°C, dynes/cm | 33 |
| Vapour Pressure, 25°C (extrapolated), mmHg | 4.6 x 10^-6 |
| Viscocity, Brookfield RVT, 20 RPMs at 25°C, cps and mPa.S | 834 |
| Viscosity, Kinematic, 25deg;C, cSt | 722 |
| VOC, ASTM D2369, % | 1.1 |
| 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). VITROFLEX B may be used in applications covered by 175.105 provided a functional barrier separates the food from the adhesive as required by subsection (a)(2) of the regulation. |
| 21 CFR 176.170 | Components of paper and paperboard in contact with aqueous and fatty foods. VITROFLEX B is permitted by 176.170(b) provided that the final product (i.e., the food-contact surface of the paper or paperboard) complies with the extractives limitations prescribed in 176.170(c). |
| 22 CFR 176.180 | Components of paper and paperboard in contact with dry food |
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