Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Product Type
- Technologies
Features & Benefits
- Ready-to-Use Product Features
- Special Features
- Electrically insulating
- One-component
- Self-adhesive
- Thixotropic
- UV & weathering-resistant
Applications & Uses
- Applications
- Application Area
- Application Method
- Cure Method
- Applications
- Appliances Industry
- Lighting
- Machine Building
- Application Details
- Multipurpose glue
- Suitable for silk-screen printing
- Typical fields of application: household appliances, mechanical engineering, glassware and tableware industry.
Processing
Preparation:
- All surfaces must be clean and free of contaminants that will inhibit the cure of ELASTOSIL® RT 703. 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. To reduce the risk of bubbles or void formation during curing, ELASTOSIL ® RT 703 can be de-aerated prior to use by applying a vacuum of 25-50 mbar for 10-15 min.
Curing:
ELASTOSIL® RT 703 is a one-part heat-curing silicone, the curing time of which is highly dependent on temperature and on both the size and the heat sink properties of the parts to be bonded. ELASTOSIL® RT 703 is usually cured between 140 °C and 200 °C in order to secure a quick build-up of adhesion to the respective substrates. Typical curing temperatures and resulting curing times are given in adjacent table.
Pigmentation:
- ELASTOSIL® RT 703 is colorless translucent. If necessary, the product can be pigmented by adding up to 2 wt. % of ELASTOSIL® COLOR PASTE FL via a mixing section of the automatic metering and dispensing equipment.
Removal:
- If removal of the silicone from machines or dispensing equipment is necessary, white spirit or similar nonpolar solvents are recommended. However, cleaning ideally should take place before the silicone is fully vulcanized.
- Cured silicone rubber needs to be rubbed off or removed mechanically, if necessary in combination with a swelling agent (solvent) or a chemical silicone remover.
Temperature Curing time, thickness 3 mm
140 °C 20 min 200 °C 3 min
Properties
- Typical Properties
- Cured Properties
- Uncured Properties
- Properties
Uncured:
- Slightly self-leveling to non-slump
- Suitable for silk-screen printing
- Fast curing at elevated temperature
Cured:
- Suitable for FIPG and, to a certain degree, for CIPG applications.
- Recommended service temperature range: -50 °C to +200 °C.
- Note
Curing conditions: 10 min. at 165 °C in a circulating air oven, 2 mm sheet, pressed, no post-curing for cured properties.
| Value | Units | Test Method / Conditions | |
| Recommended Service Temperature | -50 to +200 | °C | — |
| Value | Units | Test Method / Conditions | |
| Density (in water, at 23°C) | 1.08 | g/cm³ | DIN EN ISO 1183-1 A |
| Elongation (at break) | 300 | % | ISO 37 Type 1 |
| Shore Hardness A | 35 | — | DIN ISO 48-4 |
| Tear Strength | 9 | — | ASTM D 624 B |
| Tensile Strength | 4 | N/mm² | ISO 37 Type 1 |
| Value | Units | Test Method / Conditions | |
| Density (at 23°C, 1019 hPa) | 1.07 | g/cm³ | DIN 53217 |
| Dynamic Viscosity (at 25°C, Shear rate 0.5 s⁻¹) | 200000 | mPa·s | DIN EN ISO 3219 |
| Dynamic Viscosity (at 25°C, Shear rate 25 s⁻¹) | 22500 | mPa·s | DIN EN ISO 3219 |
| Pot Life | approx. 6 | months | — |
Regulatory & Compliance
- Certifications & Compliance
Packaging & Availability
- Country Availability
- Regional Availability