Description
WACKER ELASTOSIL® E43 TRANSPARENT is a one-component, acetoxy-curing and moderately self-levelling RTV-1 silicone adhesive that cures at room temperature upon contact with atmospheric moisture. It forms a durably elastic silicone rubber and adheres well to various substrates including cured silicones.
- Pack size: 310 ml cartridge
- Also available in: 90 g tube
Applications
- FIPG sealing (Formed-In-Place Gaskets – wet type)
- Bonding in electronics, household appliances and textiles
- Seam sealing on silicone-coated textiles
- Small device and appliance assembly
- General industry, automotive and electronics applications
- Suitable for cured silicones, glass, metals, plastics, ceramics and powder-coated surfaces
Features
- Acetoxy-curing RTV-1 system
- Solvent-free
- Excellent adhesion without primer, including to cured silicone
- Moderately self-levelling and thixotropic
- Temperature resistant from -45 °C to +180 °C
- Short-term peak resistance up to 200 °C
- Outstanding mechanical properties
- UV and weather resistant
Technical Data
| Uncured | |
|---|---|
| Color | Transparent |
| Density (20 °C) | 1.09 g/cm³ |
| Viscosity (0.5 1/s) | 250,000 mPa·s |
| Viscosity (25 1/s) | 175,000 mPa·s |
| Skin formation time | 10 minutes |
| Curing rate | 12 h/mm at 23 °C / 50% RH |
| Cured (14 days, 23 °C, 50% RH, 2 mm) | |
| Density | 1.10 g/cm³ |
| Hardness Shore A | 30 |
| Tensile strength | 6.5 N/mm² |
| Elongation at break | 500 % |
* All values are typical and not intended for specification purposes.
Processing Instructions
- Ready-to-use from cartridge
- Application with manual, pneumatic or electric guns (e.g., 310 ml dispensing gun)
- Use of suitable nozzles recommended (e.g., standard nozzle)
- Moisture curing – no heat required
- Thermal curing only for thin layers < 0.5 mm – otherwise blistering may occur
Safety Notes
- During curing approx. 4% acetic acid is released – ensure good ventilation
- Avoid contact with eyes or mucous membranes – rinse with water if necessary
Removal
- Uncured: remove with white spirit or similar nonpolar solvents
- Cured: remove mechanically or with silicone remover / swelling agents
Storage & Shelf Life
- Store in a cool, dry place
- Minimum shelf life: see batch label (“best use before end”)
WACKER Elastosil E43 Transparent, silicone adhesive, RTV-1, solvent-free
Wacker Chemie AG, Gisela-Stein-Strasse 1, 81671 München, GERMANY, +49 89 6279-0, [email protected], www.wacker.com






Marie –
No unpleasant smell; I really like that. I was skeptical, but now I order regularly. Very fast delivery, thank you.
laura_ma –
Easy to use, no mess at all.
Lina –
No unpleasant smell, which I really appreciate.
Giuseppe –
Arrived right away, excellent service. Very fast shipping. Works perfectly. No reason to complain.
Maddalena J. –
Great product, worth every cent. Very satisfied, it’s even better than I expected. Feels nice to use at home.
sandrine88 –
Surprisingly good quality for the price. Really noticed a difference after using it!
leah_blossom –
Excellent product, worth every cent. Looks even nicer in person. Been using it for 2 weeks and already see results!
sophie.ma –
Very satisfied, better than expected. I noticed a difference after a short time! Perfect for my needs; I’m very satisfied.
helene_s –
Very satisfied, it’s even better than I expected. I was skeptical, but now I’ll order it regularly.
Jannis –
Perfect, nothing to say. Perfectly as described. Top quality, fast delivery.