Enhanced TDS
Knowde-enriched technical product data sheet
Identification & Functionality
- Chemical Family
- Product Type
- Technologies
- Product Families
Features & Benefits
- Ready-to-Use Product Features
- Special Features
- Addition Curing
- Flame retardant
- Flowable
- Heat resistant
- Low viscosity
Applications & Uses
- Markets
- Applications
- Cure Method
- Applications
- Electrics & Electronics
- Encapsulation
- Hydroelectric Power Plants
- Railway Industry
- Application Details
- General purpose encapsulant
- Potting material for electrical coils of lifting magnets
- Slot exit potting for electrical coils
Processing
Caution:
Only components A and B with the same lot number may be processed together. To ensure homogeneity of the material, the components must be stirred thoroughly before they are removed or processed in their containers, in order to uniformly disperse any filler that might have settled during storage.
Surface preparation:
- All surfaces must be clean and free of contaminants that will inhibit the cure of ELASTOSIL® RT 607 A/B. Examples of inhibiting contaminants are sulfur containing materials, plasticizers, urethanes, amine containing materials and organometallic compounds - especially organotin compounds. If a substrate's ability to inhibit cure is unknown, a small scale test should be run to determine compatibility.
Mixing:
- Component A of ELASTOSIL® RT 607 contains the platinum catalyst, component B the crosslinker. Even traces of the platinum catalyst may cause gelling of the component containing the crosslinker.
- Therefore tools (spatula, stirrers, etc.) used for handling the platinumcontaining component or the catalyzed compound must not come into contact with this component. The two components should be thoroughly mixed at a 9 : 1 ratio by weight. To eliminate any air introduced during dispensing or trapped under components or devices a vacuum encapsulation is recommended.
Curing:
- Curing time of addition curing silicone rubber is highly dependent on temperature, size and heat sink properties of the component being potted.
- The reactivity can be adjusted within wide limits by adding Catalyst EP or Inhibitor PT 88 to suit the processing requirements of the particular application.
- Catalyst EP increases the reactivity, i. e., pot life and curing time are reduced. Inhibitor PT 88 is a pot life extender and prolongs pot life and curing time.
Temperature Curing time, thickness 1 cm
23 °C 24 h 100 °C 10 min 150 °C 5 min
Properties
- Catalyst Properties
Value Units Test Method / Conditions Dynamic Viscosity (at 23°C, of mix) 10000 mPa·s DIN EN ISO 3219 Mix Ratio (A:B) 9:1 parts by weight - Platinum Catalyst in Component Component A - - Pot Life (at 25°C, Dynamic Viscosity up to 100000 mPa.s (Brookfield: spindle 5, 2.5 rpm)) 80 minutes DIN EN ISO 2555 - Cured Properties
Value Units Test Method / Conditions Density (at 23°C) 1.43 g/cm³ ISO 1183-1 A Elongation (at break) 100 % ISO 37 Type 1 Permittivity 3.7 - IEC 62631-2-1 Shore Hardness A 55 - DIN ISO 48-4 Tensile Strength 3 N/mm² ISO 37 Type 1 Volume Resistivity 10¹⁴ Ohm-cm IEC 62631-3-1 - Uncured Properties
Value Units Test Method / Conditions Density (at 23°C, Componenet A) 1.5 g/cm³ DIN EN ISO 2811-1 Density (at 23°C, Componenet B) 0.97 g/cm³ DIN EN ISO 2811-1 Dynamic Viscosity (Component A, at 23°C) 15000 mPa·s DIN EN ISO 3219 Dynamic Viscosity (Component B, at 23°C) 200 mPa·s DIN EN ISO 3219 - Properties
- Two-part, 9 : 1 Mixing Ratio
- Low Viscosity
- Rapid Heat Cure
- High Hardness
- Excellent Heat Stability
- Flame Retardant
- Note
Cured properties are cured for 30 min at 150 °C in a circulating air oven.
Regulatory & Compliance
- Certifications & Compliance
- Chemical Inventories
- Quality Standards
- Compliance
Meets the requirements of EN 45545-2:2020 for Hazard Level HL1, HL2 and HL3, as per requirement set R22, R23 and R24.
Safety & Health
- Safety Note
According to the latest findings, the addition-curing silicone rubber ELASTOSIL® RT 607 A/B contains neither toxic or corrosive substances which would require special handling precautions.
Packaging & Availability
- Country Availability
- Regional Availability