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SILPURAN® 4200

SILPURAN® 4200 is a non-slump to self-levelling silicone rubber formulation, curing at room temperature under the influence of atmospheric moisture to a silicone elastomer exhibiting good mechanical properties.

SILPURAN® 4200 is designed for medical applications in compliance with the WACKER SILICONES HEALTH CARE POLICY.



特性

SILPURAN® 4200 meets selected test requirements of ISO 10993 and United States Pharmacopeia (USP) Class VI. It usually exhibits good primerless adhesion to many substrates, e.g. glass, ceramics, metals, plastics and powder coatings.

SILPURAN® 4200的特殊性能

  • 单组分体系
  • 即用型
  • 无需底涂即可附着于大部分基材
  • 缩合固化
  • 食品接触

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。

One-component silicone adhesive, in particular for medical applications.

The following studies were performed on vulcanizates of SILPURAN® 4200 according to ISO 10993:
    - Cytotoxicity (ISO 10993-5)
    - Sensitation LLNA (ISO 10993-10)

The following studies were performed on vulcanizates of SILPURAN® 4200 according to USP class VI:
    - Acute systemic toxicity
    - Intracutaneous toxicity
    - Implantation test
No adverse effects have been detected at any of the studies performed.

Properly cured vulcanizates of SILPURAN® 4200 can be used for food contact applications and are suitable for use under the Recommendation "XV. Silicones" of the BfR as well as FDA 21 CFR § 175.300 "Resinous and polymeric coatings" and FDA 21 CFR §177.2600 "Rubber articles intended for repeated use" considering any given limitations on extractable and volatile substances.

SILPURAN® 4200 is a ready-to-use, one-part silicone rubber which starts curing when exposed to air moisture.

Skin-forming time at 23 °C, 50 % RH  5 - 10 min
Curing time at 23 °C, 50 % RH  12 h/mm

As RTV-1 silicones require humidity for curing, free access of air moisture to the silicone rubber is essential. The vulcanization time of SILPURAN® 4200 can be greatly reduced by increasing the level of air's relative humidity. Please note that, unlike the initial skin formation, the total curing rate of RTV-1 silicones is limited by moisture's diffusion speed in the silicone rubber.
Since increasing the curing temperature has just a minor effect on both, the skin forming time as well as the curing speed, SILPURAN® 4200 is typically vulcanized at room temperature. Heat curing is recommended only for applications where the silicone rubber is applied as a thin film (thickness less than 0.5 mm), because otherwise blistering is likely to occur due to the quick release of acetic acid.
Detailed information about the processing of RTV-1 silicones is given in our brochure “ROOM TEMPERATURE VULCANIZING (RTV) SILICONES - MATERIAL AND PROCESSING GUIDELINES”. We recommend 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 rubber is fully vulcanized. Cured silicone needs to be rubbed off or removed mechanically, if necessary in combination with a swelling agent (solvent) or a chemical silicone remover.

包装

SILPURAN® 4200 is available in 310 mL cartridges. SILPURAN® is neither produced nor packed under sterile conditions, so the final product has to be sterilized prior to use, if necessary.

储存

Store cartridges 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
中国大陆
+86  21  6130-2000 (电话)
+86 21 6130-2500  (传真)
Contact Sales
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