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
- Flowable
- Food-contact
- No chemical shrinkage
- Resistance against casting resins
- Resistance against concrete
- Two-component
Applications & Uses
- Applications
- Cure Method
- Plastics & Elastomers End Uses
- Applications
- Construction Molding
- Making molds for concrete casting.
- Application Details
- Due to its outstanding resistance to concrete and superior mechanical properties, ELASTOSIL® M 4635 A/B is perfectly suitable for all molds of models with undercuts that are to be reproduced in casting resins, and a certain inherent rigidity of the molds is required.
- As a medium-Shore addition-curing RTV-2 silicone rubber that cures without undergoing demensional shrinkage, ELASTOSIL M 4535 A/B is also extremely suitable for casting other common reproduction materials, especially casting resins where absolutely accurate copies of models are required.
Processing
Important:
- The platinum catalyst is contained in component B.
- Only components A and B with the same lot number may be processed together.
Properties
- Physical Form
- 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
- High tear strength
- Excellent long-term stability of the mechanical properties of the vulcanizate.
- Outstanding resistance to concrete
- Note
Cured properties are cured after 24 h at 23 °C.
| Value | Units | Test Method / Conditions | |
| Curing Time (A+B, tack-free) | 12 | hours | — |
| Dynamic Viscosity (A+B, at 23°C) | 15000 | mPa·s | ISO 3219 |
| Mix Ratio (A:B) | 10:1 | parts by weight | — |
| Pot Life (A+B, at 23°C, up to 60,000 mPa.s) | 90 | minutes | — |
| Value | Units | Test Method / Conditions | |
| Density (in water, at 23°C) | 1.14 | g/cm³ | ISO 2781 |
| Elongation (at break) | 480 | % | ISO 37 |
| Linear Shrinkage | max. 0.1 | % | — |
| Shore Hardness A | 37 | — | ISO 868 |
| Tear Strength | min. 30 | N/mm | ASTM D 624 B |
| Tensile Strength | 7 | N/mm² | ISO 37 |
| Value | Units | Test Method / Conditions | |
| Density (at 23°C, Componenet A) | 1.15 | g/cm³ | — |
| Density (at 23°C, Componenet B) | 1 | g/cm³ | — |
| Dynamic Viscosity (Component A, at 23°C, after stirring) | 20000 | mPa·s | ISO 3219 |
| Dynamic Viscosity (Component B, at 23°C, after stirring) | 700 | mPa·s | ISO 3219 |
Regulatory & Compliance
- Certifications & Compliance
Safety & Health
- Safety Note
Components A and B of the addition-curing grade ELASTOSIL® M 4635 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