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Gaskets
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WACKER silicone rubbers possess excellent sealing and adhesive properties, are resistant to heat and fluids, and have excellent durability. This functional reliability helps to keep the occupants safe. Especially in the engine compartment, our silicone grades seal reliably under demanding conditions, such as high temperatures, constant vibration, and contact with fluids. Silicones are also an integral part of solid gaskets with their rugged multi-layer structure.
Benefits:
- High heat stability
- Very good resistance to fluids
Applications:
- Cylinder-head gaskets
- Impregnation of substrate materials (whether or not they contain sulfur)
- Gasket contour can be screen printed
- Topcoats for surface sealing
Product Recommendations
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Products
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Technical data
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Viscosity, dynamic | Hardness Shore A | Elongation at break | ||
ELASTOSIL® A 4 | 21000 cP[1] 21000 cP[1] | 50[2] 50[2] | 100 % 100 % |
[1] Viscosity, dynamic | 25 °C | WSTM-2103, [2] Hardness Shore A | WSTM-1110, [] Suited, [] Well suited, [] Ideally suited
Benefits:
- Fuel, oil and chemical resistance
- Oil-bleeding
- Flame resistant
- Heat resistance over a wide temperature range (from -90 °C to +300 °C).
Applications:
- Molded Seals
- Engine gaskets
- Oil-pan seals
- Coolant-system seals
- Sealing mats used in multipin plugs and for single-wire and radial seals
Benefits:
- Highly versatile processing
- Simple processing
- High cost-efficiency
- Nondestructive disassembly possible
- Integrated gasket
Applications:
- Radiator gaskets
- Sealing of water pumps and oil pumps
- Housing seals
- Sound and heat insulation
- Shock and vibration decoupling
Product Recommendations
Sorry, no results are available for your filter criteria and selected country. Please contact one of our sales offices.
Products
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Technical data
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Product properties
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Viscosity, dynamic | Tear strength | Hardness Shore A | Tensile strength | Elongation at break | Hardness Shore 00 | Resistance | Product Rheology | Crosslinking Property | Vulcanizate | ||
ELASTOSIL® E4 | - - | 7.3 N/mm[1] 7.3 N/mm[1] | 15[2] 15[2] | 2 N/mm²[4] 2 N/mm²[4] | 750 %[7] 750 %[7] | - - | - | Non-slump | - | - | |
ELASTOSIL® RT 624 "4S" A/B VS | 60000 mPa·s[10] 60000 mPa·s[10] | - - | - - | - - | - - | - - | - | - | - | - | |
ELASTOSIL® RT 713 | - - | - - | - - | - - | - - | - - | - | Non-slump | Fast curing under heat, One-component, Addition Curing | Foam, Compressible | |
ELASTOSIL® RT 723 A/B | 600000 mPa·s[11] 600000 mPa·s[11] | 13.8 N/mm[1] 13.8 N/mm[1] | - - | 5.9 N/mm²[5] 5.9 N/mm²[5] | 500 %[8] 500 %[8] | - - | Media resistant, Heat resistant, UV stable | - | Fast curing under heat, Two-component, Addition Curing | - | |
ELASTOSIL® RT 773 | - - | 4.7 N/mm[1] 4.7 N/mm[1] | 35[2] 35[2] | 1.2 N/mm²[5] 1.2 N/mm²[5] | 75 %[8] 75 %[8] | - - | Media resistant | Shear thinning, Thixotropic, Non-slump | Condensation-curing, Two-component | Self-adhesive, Compressible, Low density, Electrically insulating | |
ELASTOSIL® SC 870 A/B | 40000 mPa·s[12] 40000 mPa·s[12] | - - | 8 - 12[3] 8 - 12[3] | 350 kPa[6] 350 kPa[6] | 100 %[9] 100 %[9] | 40 - 60[13] 40 - 60[13] | Heat resistant | Thixotropic | Two-component, Addition Curing | Foam, Compressible |
[1] Tear strength | ASTM D 624 B, [2] Hardness Shore A | DIN ISO 48-4, [3] Hardness Shore A | DIN ISO 48-4 | (with skin), [4] Tensile strength | ISO 37 type 1 | Type 3 / 23°C / 2mm, [5] Tensile strength | ISO 37 type 1, [6] Tensile strength | ISO 1798, [7] Elongation at break | ISO 37 type 1 | Type 3 / 23°C / 2mm, [8] Elongation at break | ISO 37 type 1, [9] Elongation at break | ISO 1798, [10] Viscosity, dynamic D = 0.5 1/s | 25 °C | DIN EN ISO 3219, [11] Viscosity, dynamic | 25 °C | 0.5 1/s | DIN EN ISO 3219, [12] Viscosity, dynamic | 23 °C | Brookfield | Spindle 5, 2.5UPM, [13] Hardness Shore 00 (with skin) | ASTM D 2240, [] Suited, [] Well suited, [] Ideally suited
Unlike inserted gaskets, FIPGs do not require the mating surfaces to have high dimensional accuracy. In addition, the cured gasket material remains securely in place without the need for additional fixing. These two aspects allow wider part tolerances and lower the cost of parts development.
Benefits:
- Effective bonding
- Highly stable joint
- Uniform stress distribution and perfect stress relaxation
- Versatility
- High cost-efficiency
Applications:
- Oil-pan gaskets
- Gearbox seals
- Headlamp bonding
- Sealing housings against moisture and the effects of weathering