ELASTOSIL® E43 Transparent RTV-1 Silicone Rubber – 90 mL Tube
ELASTOSIL E43 by Wacker Chemie is a professional-grade rtv-1 silicone rubber sealant available in 90 mL Tube format. It is designed for use on Glass, Metal, Ceramic, Plastic, Aquariums surfaces, delivering long-lasting adhesion, flexibility, and environmental resistance across a wide range of industrial, commercial, and specialized applications. Transparent in color, this product is trusted by maintenance professionals, OEM manufacturers, and engineers worldwide who demand consistent, specification-grade silicone performance in every application.
| Attribute | Detail |
|---|---|
| Manufacturer Part Number (MPN) | 60019661 |
| Brand | Wacker Chemie |
| Product / Model Name | ELASTOSIL E43 |
| Color | Transparent |
| Package Size | 90 mL Tube |
| Product Type | RTV-1 Silicone Rubber Sealant |
| Specification | N/A |
| Compatible Substrates | Glass, Metal, Ceramic, Plastic, Aquariums |
Technical Information
ELASTOSIL E43 is a premium transparent, one-part acetoxy-cure RTV-1 silicone rubber from Wacker Chemie, formulated for applications requiring optical clarity combined with reliable silicone elastomer performance. It cures by reaction with atmospheric moisture to a clear, flexible rubber with excellent adhesion to glass, ceramics, metals, and many plastics. ELASTOSIL E43 is the silicone of choice for aquarium construction, glass bonding, glazing sealing, and electronic potting where transparency is required for aesthetic or inspection purposes. Its controlled modulus and high elongation provide durable, crack-resistant seals in both static and mildly dynamic joint conditions.
Why Choose ELASTOSIL E43?
- ✅ Optically Transparent Cure — Clear cured rubber for glass bonding and aquarium sealing
- ✅ Aquarium Grade — Widely trusted for aquarium construction and water containment
- ✅ Premium Wacker Chemistry — High-purity silicone with consistent batch quality
- ✅ Multi-Substrate Adhesion — Bonds to glass, ceramic, metal, and most plastics
- ✅ High Elongation — Flexible and crack-resistant in dynamic joint conditions
Frequently Asked Questions
Q: What is ELASTOSIL E43 used for?
A: ELASTOSIL E43 is a transparent, one-part RTV silicone rubber used for sealing, bonding, and glazing on glass, ceramics, metals, and plastics. It is widely used in aquarium construction, glass bonding, window sealing, and electronics potting.
Q: What is the MPN for ELASTOSIL E43 90 mL?
A: The Manufacturer Part Number (MPN) is 60019661.
Q: Is ELASTOSIL E43 food safe or aquarium safe?
A: ELASTOSIL E43 is commonly used in aquarium sealing. For specific food-contact or potable water applications, verify the current product datasheet and applicable certifications with Wacker.
Q: What cure type does ELASTOSIL E43 use?
A: ELASTOSIL E43 is an acetoxy-cure (acetic acid releasing) RTV-1 silicone. It cures by reaction with atmospheric moisture, releasing acetic acid during the cure process.
Q: How long does ELASTOSIL E43 take to cure?
A: ELASTOSIL E43 skins over in approximately 10–15 minutes and reaches full cure in about 24 hours depending on joint depth, temperature, and humidity.


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