Our system has noticed that you are based in United States, but the current country setting is Germany. Do you still want to change your country?
Silicone Sealants

Chemical structure of a polydimethylsiloxane – the basis of silicone sealants
Silicone sealants are supplied as one-part, ready-to-use systems. They consist of polydimethylsiloxane, curing agent, fillers and additives. After a sealant has been applied, crosslinking starts on contact with atmospheric moisture, releasing byproducts. Crosslinking starts with the formation of a skin on the surface of the applied silicone rubber and gradually progresses into the interior of the compound. Depending on the nature of the crosslinker, a small amount of an amine, acetic acid or a neutral compound, such as alcohol, is released during vulcanization.
Thanks to their outstanding properties, RTV-1 silicone sealants solve a wide variety of sealing, bonding and coating problems. Their excellent resistance to weathering and aging is the result of special chemical properties.
WACKER is a completely backward-integrated company that combines being a reliable partner with the ability to offer consistently high quality alongside customer proximity. Providing all-in-one solutions, our extensive portfolio ranges from raw materials right through to ready-to-use sealants available in various container sizes or supplied in drums or as cartridges.
WACKER Trademarks:
- ELASTOSIL®
Properties:
- Excellent weathering and aging resistance
- Outstanding UV and high-temperature resistance
- Constant stress-strain values at extreme temperatures (–30 °C to 80 °C)
- Flexible over a wide temperature range (–40 °C to 150 °C).
Applications:
- Sanitary sealants
- General-purpose construction sealants
- Glazing, windows and doors
- Sealing joints
- Natural stone joints
- Construction of aquariums
- High-temperature and fire-safety joints
- Sealants for food-contact applications
Product Recommendations
Products
|
Technical data
|
Product properties
|
||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Viscosity, dynamic | Boiling point | Movement capability | Flash point | Skin | Hardness Shore A | Density | Amine number | Modulus at 100 % elongation | Product Type | Crosslinking Property | ||
- - | - - | 25 %[1] 25 %[1] | - - | 20 min[5] 20 min[5] | - - | 1.02 g/cm³[8] 8.512 lb/gal[8] | - - | 0.35 N/mm²[10] 0.35 N/mm²[10] | - | Acetoxy-cure | ||
- - | - - | 25 %[1] 25 %[1] | - - | 20 min[5] 20 min[5] | - - | 1.02 g/cm³[8] 8.512 lb/gal[8] | - - | 0.35 N/mm²[10] 0.35 N/mm²[10] | Suitable for use in sanitary areas | Acetoxy-cure | ||
- - | - - | - - | - - | 15 min[5] 15 min[5] | - - | 1.03 g/cm³[8] 8.596 lb/gal[8] | - - | 0.55 N/mm²[10] 0.55 N/mm²[10] | - | Acetoxy-cure | ||
- - | - - | 25 %[2] 25 %[2] | - - | 20 min[5] 20 min[5] | - - | 1.03 g/cm³[8] 8.596 lb/gal[8] | - - | 0.45 N/mm²[10] 0.45 N/mm²[10] | - | Acetoxy-cure | ||
- - | - - | 25 %[2] 25 %[2] | - - | 15 min[5] 15 min[5] | - - | 1.03 g/cm³[8] 8.596 lb/gal[8] | - - | 0.37 N/mm²[10] 0.37 N/mm²[10] | - | Acetoxy-cure | ||
- - | - - | 25 %[1] 25 %[1] | - - | 20 min[6] 20 min[6] | - - | 1.01 g/cm³[8] 8.429 lb/gal[8] | - - | 0.38 N/mm²[10] 0.38 N/mm²[10] | - | Acetoxy-cure | ||
- - | - - | 25 %[2] 25 %[2] | - - | 20 min[6] 20 min[6] | - - | 1.01 g/cm³[8] 8.429 lb/gal[8] | - - | 0.38 N/mm²[10] 0.38 N/mm²[10] | - | Acetoxy-cure | ||
- - | - - | 25 %[1] 25 %[1] | - - | 20 min[6] 20 min[6] | - - | 1.01 g/cm³[8] 8.429 lb/gal[8] | - - | 0.38 N/mm²[10] 0.38 N/mm²[10] | - | Acetoxy-cure | ||
- - | - - | 25 %[1] 25 %[1] | - - | 20 min[5] 20 min[5] | - - | 1.01 g/cm³[8] 8.429 lb/gal[8] | - - | 0.38 N/mm²[10] 0.38 N/mm²[10] | Suitable for use in sanitary areas | Acetoxy-cure | ||
- - | - - | 25 %[2] 25 %[2] | - - | 20 min[5] 20 min[5] | - - | 1.01 g/cm³[8] 8.429 lb/gal[8] | - - | 0.38 N/mm²[10] 0.38 N/mm²[10] | - | Acetoxy-cure | ||
- - | - - | - - | - - | - - | - - | - - | - - | - - | - | - | ||
- - | - - | 12.5 %[2] 12.5 %[2] | - - | 25 min[5] 25 min[5] | - - | 0.98 g/cm³[8] 8.178 lb/gal[8] | - - | 0.36 N/mm²[10] 0.36 N/mm²[10] | - | Acetoxy-cure | ||
- - | - - | 12.5 %[2] 12.5 %[2] | - - | 25 min[5] 25 min[5] | - - | 0.98 g/cm³[8] 8.178 lb/gal[8] | - - | 0.36 N/mm²[10] 0.36 N/mm²[10] | Suitable for use in sanitary areas | Acetoxy-cure | ||
- - | - - | 25 %[1] 25 %[1] | - - | 25 min[5] 25 min[5] | - - | 1.03 g/cm³[8] 8.596 lb/gal[8] | - - | 0.38 N/mm²[10] 0.38 N/mm²[10] | - | Alkoxy-cure | ||
- - | - - | 25 %[1] 25 %[1] | - - | 25 min[5] 25 min[5] | - - | 1.03 g/cm³[8] 8.596 lb/gal[8] | - - | 0.38 N/mm²[10] 0.38 N/mm²[10] | Suitable for use in sanitary areas | Alkoxy-cure | ||
- - | - - | 25 %[2] 25 %[2] | - - | 15 min[7] 15 min[7] | - - | 1.02 g/cm³[8] 8.512 lb/gal[8] | - - | 0.35 N/mm²[10] 0.35 N/mm²[10] | - | Alkoxy-cure | ||
- - | - - | 50 %[3] 50 %[3] | - - | 20 min[5] 20 min[5] | - - | 1.40 g/cm³[8] 11.684 lb/gal[8] | - - | 0.40 N/mm²[10] 0.40 N/mm²[10] | - | Alkoxy-cure | ||
- - | - - | 35 %[3] 35 %[3] | - - | 25 min[5] 25 min[5] | - - | 1.02 g/cm³[8] 8.512 lb/gal[8] | - - | 0.37 N/mm²[10] 0.37 N/mm²[10] | - | Alkoxy-cure | ||
- - | - - | - - | - - | - - | 15 15 | 1.01 g/cm³[8] 8.429 lb/gal[8] | - - | 0.33 N/mm²[11] 0.33 N/mm²[11] | - | - | ||
- - | - - | 35 %[3] 35 %[3] | - - | 25 min[5] 25 min[5] | - - | 1.02 - 1.03 g/cm³[8] 8.512 - 8.596 lb/gal[8] | - - | 0.37 N/mm²[10] 0.37 N/mm²[10] | Suitable for use in sanitary areas | Alkoxy-cure | ||
- - | - - | 50 %[4] 50 %[4] | - - | 25 min[5] 25 min[5] | - - | 1.02 - 1.03 g/cm³[8] 8.512 - 8.596 lb/gal[8] | - - | 0.37 N/mm²[10] 0.37 N/mm²[10] | - | - | ||
- - | - - | 25 %[2] 25 %[2] | - - | 15 min[7] 15 min[7] | - - | 1.02 g/cm³[8] 8.512 lb/gal[8] | - - | 0.35 N/mm²[10] 0.35 N/mm²[10] | - | Alkoxy-cure | ||
- - | - - | 12.5 %[2] 12.5 %[2] | - - | 25 min[5] 25 min[5] | - - | 1.00 g/cm³[8] 8.345 lb/gal[8] | - - | 0.37 N/mm²[12] 0.37 N/mm²[12] | - | Alkoxy-cure | ||
- - | - - | 12.5 %[2] 12.5 %[2] | - - | 25 min[5] 25 min[5] | - - | 1.0 g/cm³[8] 8.345 lb/gal[8] | - - | 0.37 N/mm²[10] 0.37 N/mm²[10] | Suitable for use in sanitary areas | Alkoxy-cure | ||
- - | - - | 25 %[1] 25 %[1] | - - | 20 min[5] 20 min[5] | - - | 1.02 g/cm³[8] 8.512 lb/gal[8] | - - | 0.35 N/mm²[10] 0.35 N/mm²[10] | - | Acetoxy-cure | ||
- - | - - | 25 %[1] 25 %[1] | - - | 20 min[5] 20 min[5] | - - | 1.02 g/cm³[8] 8.512 lb/gal[8] | - - | 0.35 N/mm²[10] 0.35 N/mm²[10] | Suitable for use in sanitary areas | Acetoxy-cure | ||
- - | - - | 25 %[1] 25 %[1] | - - | 25 min[5] 25 min[5] | - - | 1.03 g/cm³[8] 8.596 lb/gal[8] | - - | 0.38 N/mm²[10] 0.38 N/mm²[10] | - | Alkoxy-cure | ||
- - | - - | 25 %[1] 25 %[1] | - - | 25 min[5] 25 min[5] | - - | 1.03 g/cm³[8] 8.596 lb/gal[8] | - - | 0.38 N/mm²[10] 0.38 N/mm²[10] | Suitable for use in sanitary areas | Alkoxy-cure | ||
- - | - - | 50 %[3] 50 %[3] | - - | 20 min[5] 20 min[5] | - - | 1.40 g/cm³[8] 11.684 lb/gal[8] | - - | 0.40 N/mm²[10] 0.40 N/mm²[10] | - | Alkoxy-cure | ||
- - | - - | 25 %[2] 25 %[2] | - - | 15 min[7] 15 min[7] | - - | 1.02 g/cm³[8] 8.512 lb/gal[8] | - - | 0.35 N/mm²[10] 0.35 N/mm²[10] | - | Alkoxy-cure | ||
- - | - - | 25 %[2] 25 %[2] | - - | 15 min[7] 15 min[7] | - - | 1.02 g/cm³[8] 8.512 lb/gal[8] | - - | 0.35 N/mm²[10] 0.35 N/mm²[10] | - | Alkoxy-cure | ||
- - | - - | ± 50 %[3] ± 50 %[3] | - - | 20 min[5] 20 min[5] | - - | 1.40 g/cm³[8] 11.684 lb/gal[8] | - - | 0.40 N/mm²[10] 0.40 N/mm²[10] | - | Alkoxy-cure | ||
- - | - - | - - | - - | - - | - - | - - | - - | - - | - | - | ||
- - | - - | 25 %[1] 25 %[1] | - - | 25 min[5] 25 min[5] | - - | 1.03 g/cm³[8] 8.596 lb/gal[8] | - - | 0.38 N/mm²[10] 0.38 N/mm²[10] | - | Alkoxy-cure | ||
- - | - - | - - | - - | - - | - - | - - | - - | - - | - | - | ||
20 - 40 mPa·s 20 - 40 mPa·s | - - | - - | > 100 °C > 212 °F | - - | - - | - - | - - | - - | - | - | ||
approx. 100 mPa·s approx. 100 mPa·s | - - | - - | > 100 °C > 212 °F | - - | - - | - - | - - | - - | - | - | ||
- - | - - | - - | 48 °C 118.4 °F | - - | - - | - - | approx. 2.5 approx. 2.5 | - - | - | - | ||
approx. 7 mPa·s approx. 7 mPa·s | - - | - - | 55 °C 131 °F | - - | - - | - - | - - | - - | - | - | ||
15 - 40 mPa·s 15 - 40 mPa·s | - - | - - | > 100 °C > 212 °F | - - | - - | - - | - - | - - | - | - | ||
- - | - - | - - | 38 °C 100.4 °F | - - | - - | - - | - - | - - | - | - | ||
2 - 5 mPa·s 2 - 5 mPa·s | - - | - - | approx. 10 °C approx. 50.0 °F | - - | - - | - - | - - | - - | - | - | ||
- - | - - | - - | 48 °C 118.4 °F | - - | - - | - - | - - | - - | - | - | ||
- - | 236 °C 456.8 °F | - - | - - | - - | - - | - - | - - | - - | - | - | ||
- - | 148 °C 298.4 °F | - - | approx. 72 °C approx. 161.6 °F | - - | - - | - - | - - | - - | - | - | ||
- - | - - | - - | - - | - - | - - | - - | - - | - - | - | - | ||
6 - 9 mPa·s 6 - 9 mPa·s | - - | - - | > 100 °C > 212 °F | - - | - - | - - | - - | - - | - | - | ||
6 - 8 mPa·s 6 - 8 mPa·s | - - | - - | 125 °C 257 °F | - - | - - | - - | - - | - - | - | - | ||
- - | - - | - - | - - | - - | - - | - - | - - | - - | - | - | ||
- - | - - | - - | 11 °C 51.8 °F | - - | - - | - - | - - | - - | - | - | ||
- - | - - | - - | 11 °C 51.8 °F | - - | - - | - - | - - | - - | - | - | ||
approx. 6000 mPa·s approx. 6000 mPa·s | - - | - - | - - | - - | - - | - - | - - | - - | - | - | ||
- - | - - | 20 %[2] 20 %[2] | - - | - - | - - | 1.01 g/cm³[9] 8.429 lb/gal[9] | - - | - - | - | - | ||
95 - 105 mPa·s 95 - 105 mPa·s | - - | - - | - - | - - | - - | - - | - - | - - | - | - | ||
approx. 1000 mPa·s approx. 1000 mPa·s | - - | - - | 348 °C 658.4 °F | - - | - - | - - | - - | - - | - | - | ||
15 - 50 mPa·s 15 - 50 mPa·s | - - | - - | approx. 120 °C approx. 248 °F | - - | - - | - - | - - | - - | - | - | ||
approx. 8000 mPa·s approx. 8000 mPa·s | - - | - - | 83 °C 181.4 °F | - - | - - | - - | - - | - - | - | - | ||
approx. 100000 mPa·s approx. 100000 mPa·s | - - | - - | 90 °C 194 °F | - - | - - | - - | - - | - - | - | - | ||
approx. 110000 mPa·s approx. 110000 mPa·s | - - | - - | 90 °C 194 °F | - - | - - | - - | - - | - - | - | - | ||
approx. 57000 mPa·s approx. 57000 mPa·s | - - | - - | 90 °C 194 °F | - - | - - | - - | - - | - - | - | - | ||
approx. 60000 mPa·s approx. 60000 mPa·s | - - | - - | 90 °C 194 °F | - - | - - | - - | - - | - - | - | - | ||
approx. 120000 mPa·s approx. 120000 mPa·s | - - | - - | - - | - - | - - | - - | - - | - - | - | - | ||
approx. 20000 mPa·s approx. 20000 mPa·s | - - | - - | - - | - - | - - | - - | - - | - - | - | - | ||
approx. 305000 mPa·s approx. 305000 mPa·s | - - | - - | - - | - - | - - | - - | - - | - - | - | - | ||
approx. 50000 mPa·s approx. 50000 mPa·s | - - | - - | - - | - - | - - | - - | - - | - - | - | - | ||
- - | - - | - - | - - | - - | - - | - - | - - | - - | - | - | ||
approx. 75000 mPa·s approx. 75000 mPa·s | - - | - - | - - | - - | - - | - - | - - | - - | - | - |
[1] Movement capability | ISO 11600 / EN 15651, [2] Movement capability | ISO 11600, [3] Movement capability | ASTM C920, [4] Movement capability | ISO 9047, [5] Skin forming time | 23 °C | 50 % r.h , [6] Skin Skin forming time | 23 °C | 50 % r.h , [7] Skin formating time | 23 °C | 50 % r.h , [8] Density | 23 °C | ISO 1183-1 A, [9] Density | ISO 1183-1 A, [10] Modulus at 100 % elongation | ISO 8339-A, [11] Modulus at 100 % elongation | 100 % | 23 °C | 50 % r.h | ISO 37, [12] Modulus at 100 % elongation | ISO 8339