Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Polymer Name
- Technologies
- Product Families
Features & Benefits
- Labeling Claims
- Materials Features
- Special Features
- Fast curing
- Food-contact
- High tear-resistant
- Low volatile
Applications & Uses
- Markets
- Plastics & Elastomers End Uses
- Plastics & Elastomers Processing Methods
- Application Details
- ELASTOSIL® LR 5040/20 A/B is designed for the automated, high volume production of injection molded articles. Properly cured vulcanizates of ELASTOSIL® LR 5040/20 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”, DIN EN 1400:2014-07 and DIN EN 14350-2:2004-11, respectively. 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.
Processing
- 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 one day.
- Applications
- Baby Care
- Dairy & Food Applications
- Medical Equipment
Properties
- Physical Form
- Cured Properties
- Uncured Properties
- Note
Cure conditions: 5 min / 165 °C in press for cured properties.
| Value | Units | Test Method / Conditions | |
| Density | 1.12 | g/cm³ | DIN EN ISO 1183-1 A |
| Elongation (at break) | 890 | % | ISO 37 Type 1 |
| Shore Hardness A | 20 | — | DIN ISO 48-4 |
| Tear Strength | 11 | N/mm | DIN ISO 34-1 A |
| Tear Strength | 33 | N/mm | ASTM D 624 B |
| Tensile Strength | 7.9 | N/mm² | ISO 37 Type 1 |
| Volatile Content (determined for press-cured sheets having 2 mm thickness. For thinner articles the volatile content can be higher.) | max. 0.4 | % | BfR Recommendation XV. Silicones |
| Value | Units | Test Method / Conditions | |
| Dynamic Viscosity (Shear rate 1 s⁻¹) | 580000 | mPa·s | DIN EN ISO 3219 |
| Dynamic Viscosity (Shear rate 10 s⁻¹) | 260000 | mPa·s | DIN EN ISO 3219 |
Regulatory & Compliance
- Certifications & Compliance
Packaging & Availability
- Country Availability
- Regional Availability
Storage & Handling
- Storage Information
This product is available in 20 kg pail and 200 kg drum kits.