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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

产品推荐

表格可上下滚动
个产品
技术数据
动态粘度 Shore density A 断裂伸长率
ELASTOSIL® A 4 21000 cP[1] 21000 cP[1] 50[2] 50[2] 100 % 100 %
说明
[1] 动态粘度 | 25 °C | WSTM-2103,  [2] Shore density A | WSTM-1110,  [] 适合,  [] 非常适合,  [] 极其适合 

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

产品推荐

表格可上下滚动
个产品
技术数据
Product properties
动态粘度 Tear-growth resistance Shore density A Breaking strength 断裂伸长率 邵氏00硬度 耐久性 流变性 交联性能 硫化胶
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] - - - 抗下垂 - -
ELASTOSIL® RT 624 "4S" A/B VS 60000 mPa·s[10] 60000 mPa·s[10] - - - - - - - - - - - - - -
ELASTOSIL® RT 713 - - - - - - - - - - - - - 抗下垂 高温下快速固化, 单组分, 加成固化 泡沫, 可压缩
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] - - 耐介质, 耐热性, 紫外线稳定性 - 高温下快速固化, 双组分, 加成固化 -
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] - - 耐介质 剪切变稀, 触变, 抗下垂 缩合固化, 双组分 自粘性, 可压缩, 低密度, 电绝缘性
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] 耐热性 触变 双组分, 加成固化 泡沫, 可压缩
说明
[1] Tear-growth resistance | ASTM D 624 B,  [2] Shore density A | DIN ISO 48-4,  [3] Shore density A | DIN ISO 48-4 | (with skin),  [4] Breaking strength | ISO 37 type 1 | Type 3 / 23°C / 2mm,  [5] Breaking strength | ISO 37 type 1,  [6] Breaking strength | ISO 1798,  [7] 断裂伸长率 | ISO 37 type 1 | Type 3 / 23°C / 2mm,  [8] 断裂伸长率 | ISO 37 type 1,  [9] 断裂伸长率 | ISO 1798,  [10] 动态粘度 D = 0.5 1/s | 25 °C | DIN EN ISO 3219,  [11] 动态粘度 | 25 °C | 0.5 1/s | DIN EN ISO 3219,  [12] 动态粘度 | 23 °C | Brookfield | Spindle 5, 2.5UPM,  [13] 邵氏00硬度 (with skin) | ASTM D 2240,  [] 适合,  [] 非常适合,  [] 极其适合 

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