Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Polymer Name
- Technologies
- Product Families
Features & Benefits
- Materials Features
- Specific Features
- Oil resistant
- Self-adhesive
Applications & Uses
- Applications
- Plastics & Elastomers End Uses
- Applications
- General Automotive Parts
- Molded Parts
- Molded Seals (LSR)
- Application Details
ELASTOSIL® LR 3076 series are particularly suitable for the economical production of large series of overmolded parts (thermoplastic/elastomer. Because of the high oil resistance of ELASTOSIL® LR 3076/70, it is mainly used for the production of gaskets for automotive engines and in mechanical engineering. Parts made from ELASTOSIL® LR 3076/70 can generally be used for technical applications without post-curing, but do not comply with regulations concerning use in the pharmaceutical and food industry.
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.
Note : Start-up of new molds should be supported by use of ELASTOSIL® AUX Mold Release Agent 32.
Properties
- Physical Form
- Cured Properties
- Uncured Properties
- Properties
ELASTOSIL® LR 3076 series are primerless, selfbonding grades that adhere to various plastic substrates (e.g. PA, PBT) and metals, but not in the mold. The bonding is improved by a subsequent heat treatment process (e.g. one hour at 100°C) or by a longer storing at room temperature. Because of the individual surface properties each substrate must be tested before mass production. For further information on tested material combinations please refer to the corresponding adhesion tables which are available upon request from the responsible sales manager. The cured rubbers are of beige color and show excellent oil resistance.
- Note
Cure conditions : 5 min / 165°C in press.
| Value | Units | Test Method / Conditions | |
| Compression Set (at 22 hours, 125°C) | 14 | % | DIN ISO 815-1 type B method A |
| Compression Set (at 22 hours, 150°C) | 18 | % | DIN ISO 815-1 type B method A |
| Compression Set (at 70 hours, 175°C) | 23 | % | DIN ISO 815-1 type B method A |
| Density | 1.31 | g/cm³ | DIN EN ISO 1183-1 A |
| Elongation (at break) | 230 | % | ISO 37 Type 1 |
| Rebound Resilience | 70 | % | ISO 4662 |
| Shore Hardness A | 70 | — | DIN ISO 48-4 |
| Tear Strength | 14 | N/mm | ASTM D 624 B |
| Tensile Strength | 4.7 | N/mm² | ISO 37 Type 1 |
| Value | Units | Test Method / Conditions | |
| Dynamic Viscosity (Shear rate 1 s⁻¹) | 620000 | mPa·s | DIN EN ISO 3219 |
| Dynamic Viscosity (Shear rate 10 s⁻¹) | 200000 | 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.