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SEMICOSIL® 911 A/B

SEMICOSIL® 911 A/B is a pourable, addition-curing, two-part silicone rubber that cures to a soft silicone gel.



特性

  •  two-part, 1 : 1 mixing ratio
  •  thixotropic
  •  rapid heat cure
  •  forms a soft gel on vulcanization
  •  low content of volatiles
  •  low content of uncured polymer
  •  almost constant properties between -40 °C and +180 °C
  •  low ion content

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。

Because of the thixotropic behaviour, SEMICOSIL® 911 A/B is specially recommended for local encapsulation of delicate electronic components.

Surface preparation:
All surfaces must be clean and free of contaminants that will inhibit the cure of SEMICOSIL® 911 A/B. Examples of inhibiting contaminants are sulfur containing materials, plasticizers, urethanes, amine containing materials and organometallic compounds – especially organotin compounds. If a substrate’s ability to inhibit cure is unknown, a small scale test should be run to determine compatibility.


Mixing
Component A of SEMICOSIL® 911 A/B contains the platinum catalyst, component B the crosslinker. Even traces of the platinum catalyst may cause gelling of the component containing the crosslinker. Therefore tools (spatula, stirrers, etc.) used for handling the platinum-containing component or the catalyzed compound must not come into contact with this component. The two components should be thoroughly mixed at a 1 : 1 ratio by weight or volume. To eliminate any air introduced during mixing or trapped under components or devices a vacuum de-airing under a vacuum of 10 - 20 mm mercury for 5 - 10 min is recommended.


Curing
Curing time of addition-curing silicone rubber is highly dependent on temperature, size and heat sink properties of the component being potted.


Temperature            Curing time

100 °C                      5 min
130 °C                      2 min


We recommend running preliminary tests to optimize conditions for the particular application. Comprehensive processing instructions are given in our leaflet "Wacker RTV-2 Silicone Rubber - Processing".
 

储存

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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