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ELASTOSIL® LR 5003/50 A/B
ELASTOSIL® LR 5003/50 A/B is a paste-like, easily pigmentable two-component liquid silicone rubber with very low volatiles content. The ability to meet regulatory requirements for specific food contact applications without need for post-curing offers key advantages in cost-savings and productivity.
Eigenschaften
ELASTOSIL® LR 5003/50 A/B is a paste-like, easily pigmentable two-component liquid silicone rubber with very low volatiles content without post-curing. It is particularly suitable for the economical production of large series of injection molded articles.
Spezifische Merkmale von ELASTOSIL® LR 5003/50 A/B
- Lebensmittelkontakt
- niedriger Flüchtigengehalt
Datenblätter
ELASTOSIL® LR 5003/50 A/B is designed for the automated, high volume production of injection molded articles.
Properly cured vulcanizates of ELASTOSIL® LR 5003/50 A/B can be used for food contact applications and are suitable for use under the Recommendation "XV. Silicones" of the BfR and FDA 21 CFR §177.2600 "Rubber Articles Intended for Repeated Use" considering any given limitations on extractable and volatile substances.
Properly cured materials meet the limit of 0.5 % for volatile substances in accordance with BfR “XV. Silicones”. Consequently, post-curing may not be necessary, however, as the results may vary with the processing conditions and the geometry of the finished article, it is the responsibility of the person placing the article on the market to verify compliance with all relevant requirements and regulations. Since the measured volatile content increases with decreasing thickness of a part, in particular very thin-walled articles have to be carefully checked for compliance with any relevant limitations for volatile matter.
Post curing might still stay mandatory to reach certain properties, e.g.:
- to avoid deformation of parts during storage
- to optimize mechanical properties
- for an excellent long-term compression set at elevated temp. (>100 °C)
This product can be used within a temperature range of - 55 °C to + 210 °C. At service temperatures above approx. 180 °C the addition of heat stabilizers is recommended. Further information about an improvement of the heat stability by use of specific ELASTOSIL® Color Pastes FL can be obtained from the Technical Information Sheet "ELASTOSIL® Color Pastes FL".
The A and B components are delivered ready to use in 20 kg pail and 200 kg drum kits. With adequate metering equipment, they can be pumped directly from the original containers into the injection molding machine and mixed by a static mixer. The mixing ratio is 1 : 1. At room temperature, mixtures of A and B components have a pot life of at least three days.
For further detailed processing information please refer to our brochure "SOLID AND LIQUID SILICONE RUBBER - MATERIAL AND PROCESSING GUIDELINES".
Verpackung / Gebinde
This product is available in 20 kg pail and 200 kg drum kits.
Lagerung
Once opened, containers should always be resealed after use to prevent the platinum catalyst from being poisoned by amines, sulphur or phosphorus compounds. For detailed information about storage conditions please refer to the latest edition of our brochure "SOLID AND LIQUID SILICONE RUBBER - MATERIAL AND PROCESSING GUIDELINES".
The 'Best use before end' date of each batch is shown on the product label. Storage beyond the date specified on the label does not necessarily mean that the product is no longer usable. In this case however, the properties required for the intended use must be checked for quality assurance reasons.
Vertrieb & Support
200233 Shanghai
中国大陆
+86 21 6130-2500 (Fax)
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Distributoren
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