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ELASTOSIL® RT 773

ELASTOSIL® RT 773 is a non slump, condensation curing RTV-2 silicone. When processed with a curing agent of the WACKER® Catalyst T 77 series, a self bonding and durable silicone rubber is formed.

 

Cured ELASTOSIL® RT 773 shows long-term stability against weathering, moisture and UV light. The compressible silicone elastomer may continously be exposed to constantly changing climatic conditions, UV radiation and temperatures as high as 140 °C (284 °F) without damage.



特性

Uncured:

  • Non-slump paste
  • Medium to fast curing at room temperature
  • To be cured with WACKER® Catalyst T 77 or WACKER® Catalyst T 77 PLUS (recommended mixing ratio: 10:1)

 

Cured:

  • Medium hardness
  • Primerless adhesion to many substrates (glass, ceramics, metals, plastics and powder coatings)
  • recommended service temperature range: -50 °C to +140 °C
  • Suitable for CIPG and, to a certain degree, for FIPG applications

ELASTOSIL® RT 773的特殊性能

  • 低密度
  • 剪切变稀
  • 双组分
  • 可压缩
  • 抗下垂
  • 抗潮湿
  • 无需底涂即可附着于大部分基材
  • 电绝缘性
  • 缩合固化
  • 耐介质
  • 耐紫外线性和耐候性
  • 自粘性
  • 触变

免责声明

所提供之所有信息均基于我们当前所掌握的知识。尽管如此,我们不对其作任何担保、也不承担任何责任,并且保留在任何时候进行技术变更的权利。购买方应在预测试中对所提供之信息以及产品在既定应用中的适应性进行检查。任何时候都必须以合同条款与条件为准。此外,本免责申明还适用于与第三方权利有关之事宜,尤其是在德国境外。

  • Compressible general purpose grade for CIPG applications
  • Typical fields of application: household appliances, automotive, mechanical engineering.

Mixing and curing:

ELASTOSIL® RT 773 is processed in combination with a curing agent, such as WACKER® Catalyst T 77 or WACKER® Catalyst T 77 PLUS. Prior to application the two compounds should be thoroughly mixed, either manually or by automatic metering lines equipped with static or dynamic mixing devices. The recommended mixing ratio is 10:1 by weight.

 

Potlife and curing speed can be modified within limits by adjusting the ratio of base compound (ELASTOSIL® RT 773) to curing agent (WACKER® Catalyst T 77 or WACKER® Catalyst T 77 PLUS). Varying the mixing ratio between 8:1 and 12:1 usually has a small effect on the properties of the cured rubber. However, if the mixing ratio differs substantially from the recommended scope, preliminary tests should be carried out to check the cured material’s suitability. General information about pot life and resulting curing times are given in the respective tables "Catalyzed".

 

Moreover curing speed can be slightly accelerated by raising the temperature. Heating, however, must not exceed 60 °C before curing is completed.

 

After completion of the vulcanization process the product may continuously be exposed to constantly changing climatic conditions, UV radiation and high temperature without damage. Cured ELASTOSIL® RT 773 usually shows good primerless adhesion to many substrates, e.g. glass, ceramics, metals, plastics and powder coatings.

 

Detailed information about processing and modifying curing speed is given in our brochure “ROOM TEMPERATURE VULCANIZING (RTV) SILICONES - MATERIAL AND PROCESSING GUIDELINES”. We recommend running preliminary tests to optimize conditions for the particular application.

 

Removal:

If removal of the silicone from machines or dispensing equipment is necessary, white spirit or similar nonpolar solvents are recommended. However, cleaning ideally should take place before the silicone is fully vulcanized. Cured silicone needs to be removed mechanically, if necessary in combination with a swelling agent (solvent).

储存

Store in a dry and cool place.

 

The 'Best use before end' date of each batch is shown on the product label.

 

Storage beyond the date specified on the label does not necessarily mean that the product is no longer usable. In this case however, the properties required for the intended use must be checked for quality assurance reasons.

销售和支持

Wacker Chemicals (China) Co.,Ltd.
Caohejing Hi-Tech Park
200233 Shanghai
中国
+86  21  6130-2000 (电话)
+86 21 6130-2500  (传真)
Contact Sales
网站

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