Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Polymer Name
- Technologies
- Product Families
Features & Benefits
- Labeling Claims
- Materials Features
- Specific Features
- Food-contact
- Less self-healing
- Low coefficient of friction
- Reduced volatile content
- Self-adhesive
Applications & Uses
- Markets
- Applications
- Plastics & Elastomers End Uses
- Applications
- Dairy Applications
- Molded Parts
- Sanitary
- Application Details
- Start-up of new molds should be supported by use of ELASTOSIL® AUX Mold Release Agent 32.
- ELASTOSIL® LR 3671 series are particularly suitable for the economical production of large series of overmolded parts (thermoplastic/elastomer), even in a comolding process (shuttle mold) under standard conditions, without any special treatment of the mold surface.
- Parts made from ELASTOSIL® LR 3671/50 can be used for technical applications. These articles are also suitable for use in conjunction with foodstuffs.
- ELASTOSIL® LR 3671/50 is suitable for use under the Recommendation XV.
- Silicones of the BfR and FDA 21 CFR §177.2600 "Rubber Articles Intended for Repeated Use" provided that the product is appropriately cured/ post-cured and the respective limits for extractable/migrating or volatile components are met.
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 three days.
Properties
- Physical Form
- Cured Properties
- Uncured Properties
- Properties
ELASTOSIL® 3671 series are primerless selfbonding grades that adhere to various thermoplasts (e.g. PA, PBT) and metals, but not to the mold (adhesive adherence, protects against loss prior to assembly). The bonding is improved by an aging process (e.g. one hour at 100°C) or by a longer storage at room temperature. Because of the individual surface properties each substrate must be tested before mass production. If necessary, one has to check the development of adhesive properties over time and/or in an environment relevant to the application. Compared to the ELASTOSIL® 3071/40 series the coefficient of friction of an article of ELASTOSIL® 3671/40 is reduced by 50 - 70 %.
- Note
Cure conditions : 5 min / 165°C in press.
| Value | Units | Test Method / Conditions | |
| Compression Set (at 22 hours, 175°C) | 61 | % | DIN ISO 815-1 type B method A |
| Density | 1.13 | g/cm³ | DIN EN ISO 1183-1 A |
| Elongation (at break) | 610 | % | ISO 37 Type 1 |
| Shore Hardness A | 50 | — | DIN ISO 48-4 |
| Tear Strength | 28 | N/mm | ASTM D 624 B |
| Tensile Strength | 8.2 | N/mm² | ISO 37 Type 1 |
| Value | Units | Test Method / Conditions | |
| Dynamic Viscosity (Shear rate 1 s⁻¹) | 1200000 | mPa·s | DIN EN ISO 3219 |
| Dynamic Viscosity (Shear rate 10 s⁻¹) | 470000 | mPa·s | DIN EN ISO 3219 |
Regulatory & Compliance
- Certifications & Compliance
Packaging & Availability
- Country Availability
- Regional Availability
- Packaging Information
This product is available in 20 kg pail and 200 kg drum kits.
Storage & Handling
- Storage Information
Once opened, containers should always be resealed after use to prevent the platinum catalyst from being poisoned by amines, sulfur or phosphorus compounds.