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Identification & Functionality
- Carrier
- Chemical Family
- Technologies
Features & Benefits
- Labeling Claims
- Ready-to-Use Product Features
- Special Features
- Excellent mechanical properties
- Solvent-free
Applications & Uses
- Applications
- Application Area
- Cure Method
- Applications
- Aerospace
- Appliances Industry
- Appliances Industry
- Bonding, Fixing & Sealing
- Industrial Adhesives
- Small Appliances
- Application Details
Multipurpose sealant and adhesive for general industry and electronics for FIPG applications. Particularly suitable as adhesive on cured rubber or silicone coated textiles like seam sealing.
Processing
- ELASTOSIL® E43 is a ready-to-use, one-part silicone rubber which starts curing when exposed to air moisture.
- As RTV-1 silicones require humidity for curing, free access of air moisture to the silicone rubber is essential. Additionally, the vulcanization time of ELASTOSIL® E43 can be greatly reduced by increasing the level of air's relative humidity. Please note that, unlike the initial skin formation, the total curing rate of RTV-1 silicones is limited by moisture's diffusion speed in silicone rubber.
- As increasing the curing temperature has just a minor effect both on the skin forming time and the curing speed, ELASTOSIL® E43 typically is vulcanized at room temperature. Heat curing is recommended only for applications where the silicone rubber is applied as a thin film (thickness less than 0.5 mm), because otherwise blistering is likely to occur due to the quick release of acetic acid.
- After completion of the vulcanization the silicone elastomer may continuously be exposed to constantly changing climatic conditions, UV radiation and high temperature without damage.
- Cured ELASTOSIL® E43 usually shows good primerless adhesion to many substrates, e.g. glass, ceramics, metals, plastics and powder coatings. 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 rubber is fully vulcanized. Cured silicone needs to be rubbed off or removed mechanically, if necessary in combination with a swelling agent (solvent) or a chemical silicone remover ELASTOSIL E43 shows good primerless adhesion to many substrates. We recommend running preliminary tests to optimize conditions for the particular application.
Properties
- Color
- Cured Properties
- Uncured Properties
- Properties
- Moderately self-leveling
- High-tear grade
- Recommended service temperature from -45 °C to +180 °C
- Max. Recommended short term peak temperature exposure 200°C
- Note
Curing Conditions: 14 days at 23 °C and 50 % rel. humidity, 2 mm sheet, no post-curing for cured properties.
| Value | Units | Test Method / Conditions | |
| Density (in water, at 23°C) | 1.1 | g/cm³ | DIN EN ISO 1183-1 A |
| Elongation (at break, Type 3, 23°C, 2mm) | 500 | % | ISO 37 Type 1 |
| Shore Hardness A | 30 | — | DIN ISO 48-4 |
| Tensile Strength (Type 3, at 23°C, 2mm) | 6.5 | N/mm² | ISO 37 Type 1 |
| Value | Units | Test Method / Conditions | |
| Curing Time (at 23°C, 50 %r.h) | 12 | hour/mm | — |
| Density (at 20°C) | 1.09 | g/cm³ | DIN EN ISO 2811-1 |
| Dynamic Viscosity (at 25°C, Shear rate 0.5 s⁻¹) | 250000 | mPa·s | DIN EN ISO 3219 |
| Dynamic Viscosity (at 25°C, Shear rate 25 s⁻¹) | 175000 | mPa·s | DIN EN ISO 3219 |
| Skin Formating Time (at 23°C, 50% r.h) | 10 | minutes | — |
Regulatory & Compliance
- Certifications & Compliance
Safety & Health
- Safety Note
During vulcanization of ELASTOSIL® E43 TRANSPARENT, a total of 4% by weight of acetic acid is split off. These vapors should not be inhaled for long periods or in high concentration. Work areas should therefore be well ventilated. Contact of unvulcanized silicone rubber with eyes and mucous membranes must be avoided as this would cause irritation. However if it does happen, rinse the affected area thoroughly with water.
Packaging & Availability
- Country Availability
- Regional Availability