Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Polymer Name
- Technologies
- Product Families
Features & Benefits
- Labeling Claims
- Materials Features
- Special Features
- Addition-curing
- BfR compliant
- Excellent mechanical properties
- FDA compliant
- Low viscosity
- No shrinkage
- Non oil bleeding
- Two-component
Applications & Uses
- Markets
- Compatible Polymers & Resins
- Cure Method
- Plastics & Elastomers End Uses
- Plastics & Elastomers Processing Methods
- Applications
Prototype Molding
- Application Details
- High-performance silicone mold-making compound which is particularly suitable for reproducing models with undercuts in polyurethane or epoxy resins.
- Main field of application: Vacuum casting for rapid prototyping especially suitable if crystal-clear casting resins are used.
Processing
Important note:
- The platinum catalyst is in component A.
- A and B components may only be used together if they have the same batch number.
Properties
- Color
- Catalyst Properties
- Cured Properties
- Uncured Properties
- Properties
- Very good flow
- Fast and non-shrink cure at room temperature which can be accelerated considerably by the application of heat.
- Medium Shore A hardness.
- Good transparency of the cured rubber
- High tear strength
- Outstanding resistance to casting resins, particularly polyurethanes and epoxies, for long service life of the molds.
- Oil-free surfaces for crystal-clear resins
- Note
Cured properties are vulcanized after 24 h at 23 °C.
| Value | Units | Test Method / Conditions | |
| Curing Time (tack-free) | 12 | hours | — |
| Dynamic Viscosity (at 23°C) | 30000 | mPa·s | ISO 3219 |
| Mix Ratio (A:B) | 10:1 | parts by weight | — |
| Pot Life (at 23°C, up to 150000 mPa.s) | 90 | minutes | — |
| Value | Units | Test Method / Conditions | |
| Density (in water, at 23°C) | 1.07 | g/cm³ | ISO 2781 |
| Elongation (at break) | min. 300 | % | ISO 37 |
| Linear Shrinkage | max. 0.1 | % | — |
| Shore Hardness A | 43 | — | ISO 868 |
| Tear Strength | min. 25 | N/mm | ASTM D 624 B |
| Tensile Strength | min. 4.5 | N/mm² | ISO 37 |
| Value | Units | Test Method / Conditions | |
| Density (at 23°C, Componenet A) | 1.08 | g/cm³ | — |
| Density (at 23°C, Componenet B) | 0.97 | g/cm³ | — |
| Dynamic Viscosity (Component A, at 23°C, after stirring) | 50000 | mPa·s | ISO 3219 |
| Dynamic Viscosity (Component B, at 23°C, after stirring) | 400 | mPa·s | ISO 3219 |
Regulatory & Compliance
- Certifications & Compliance
Safety & Health
- Safety Note
Components of the addition-curing grade ELASTOSIL® M 4641 A/B contain only constituents that over many years have proved to be neither toxic nor aggressive. Special handling precautions are therefore not required, i.e., only the general industrial hygiene regulations apply.
Packaging & Availability
- Country Availability
- Regional Availability