Sealing technology manual for the process industry

Fluoroprene® XP in the pharmaceutical industry Fluoroprene® XP offers an unbeatable advantage in terms of its excellent resistance to non-polar and oil-based pro- duct media compared to EPDM, both in the dairy indust- ry and in the pharmaceutical industry. For instance in the production and packaging of pharmaceutical products such as ointments. The special resistance of Fluoroprene® XP to flavors is also sought-after in ointments containing euca- lyptus oil. Fluoroprene® XP is the right choice for a wide variety of oil-containing preparations such as emulsions or sprays, e.g. nasal sprays with essential oils. Both in the synthesis of active ingredients and in their packaging, it is important to keep in mind that the sealing materials relea- se as few substances as possible from their matrix into the product. In order to ensure the purity of the product, ana- lyses of extractables are necessary. Freudenberg examined the range of materials for the pharmaceutical industry in an extractables study. In addition to the EPDM materials, Fluo- roprene® XP compounds were also analyzed (see page 61 f.). Fluoroprene® XP in the beverage industry While FKM materials swell significantly even at room tempe- rature in aroma concentrates such as “Raspberry” and “Fan- tasy Fruit”, Fluoroprene® XP provides a good compatibility here. However, there are flavoring agents such as “Peach” where even Fluoroprene® XP reaches its limits, too. Only a perfluoroelastomer can be used here as a stable solution. In the application of the material in concentrations that are common for beverages, Fluoroprene® XP offers a significant advantage, given the limited absorption capacity of flavoring substances (see page 57 f.). VOLUME CHANGE IN FLAVOR CONCENTRATES 100% FANTASY FRUIT FLAVOR 96 H 100% RASPBERRY FLAVOR 96 H 100% PEACH FLAVOR 96 H 180 160 140 120 100 80 60 40 20 0 FKM Fluoroprene® XP Volume swelling in % APPENDIX PRODUCT PORTFOLIO MATERIALS RESISTANCE & PURITY ENGINEERING PLASTICS ELASTOMERIC MATERIALS TECHNICAL FUNDAMENTALS INTRODUCTION 45

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