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Gaskets
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
Produktempfehlungen
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Produkte
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Technische Daten
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| dynamische Viskosität | Härte Shore A | Reißdehnung | ||
| ELASTOSIL® A 4 | 21000 cP[1] 21000 cP[1] | 50[2] 50[2] | 100 % 100 % | |
[1] dynamische Viskosität | 25 °C | WSTM-2103, [2] Härte Shore A | WSTM-1110, [] Geeignet, [] Gut geeignet, [] Ideal geeignet
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
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Products
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Technical data
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Product properties
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| dynamische Viskosität | Weiterreißwiderstand | Härte Shore A | Reißfestigkeit | Reißdehnung | Härte Shore 00 | Beständigkeit | Rheologie | Vernetzungseigenschaft | Vulkanisat | ||
| 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] | - - | - | standfest | - | - | |
| ELASTOSIL® RT 624 "4S" A/B VS | 60000 mPa·s[10] 60000 mPa·s[10] | - - | - - | - - | - - | - - | - | - | - | - | |
| ELASTOSIL® RT 713 | - - | - - | - - | - - | - - | - - | - | standfest | Schnelle Aushärtung unter Hitze, einkomponentig, Additionsvernetzend | Schaum, komprimierbar | |
| 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] | - - | medienbeständig, hitzebeständig, UV-stabil | - | Schnelle Aushärtung unter Hitze, zweikomponentig, Additionsvernetzend | - | |
| 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] | - - | medienbeständig | Scherverdünnend, thixotropierend, standfest | kondensationsvernetzend, zweikomponentig | selbsthaftend, komprimierbar, niedrige Dichte, elektrisch isolierend | |
| 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] | hitzebeständig | thixotropierend | zweikomponentig, Additionsvernetzend | Schaum, komprimierbar | |
[1] Weiterreißwiderstand | ASTM D 624 B, [2] Härte Shore A | DIN ISO 48-4, [3] Härte Shore A | DIN ISO 48-4 | (with skin), [4] Reißfestigkeit | ISO 37 Type 1 | Type 3 / 23°C / 2mm, [5] Reißfestigkeit | ISO 37 Type 1, [6] Reißfestigkeit | ISO 1798, [7] Reißdehnung | ISO 37 Type 1 | Type 3 / 23°C / 2mm, [8] Reißdehnung | ISO 37 Type 1, [9] Reißdehnung | ISO 1798, [10] dynamische Viskosität D = 0.5 1/s | 25 °C | DIN EN ISO 3219, [11] dynamische Viskosität | 25 °C | 0,5 1/s | DIN EN ISO 3219, [12] dynamische Viskosität | 23 °C | Brookfield | Spindle 5, 2.5UPM, [13] Härte 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
