ELASTOSIL® N 2076

ELASTOSIL® N 2076 is a flowable, one-part silicone rubber for coating and encapsulation applications. When exposed to air moisture it cures at room temperature to yield a permanently flexible silicone rubber with good heat resistance and excellent flame retardant properties.

 

Fully vulcanized ELASTOSIL® N 2076 shows long-term stability against weathering, moisture and UV radiation. The silicone elastomer may continously be exposed to constantly changing climatic conditions, UV radiation and temperature as high as
180 °C (356 °F) without damage.

 



特性

Uncured:

  • Medium viscosity level
  • By-product of curing: alcohol

 

Cured:

  • Medium hardness
  • Designed for the protective coating of electrical coils
  • High Limiting Oxygen Index (LOI)
  • Complies with the fire safety requirements according to EN 45545, R22/23 (test certificates available upon request)
  • Recommended service temperature range: -50 °C to +180 °C

ELASTOSIL® N 2076的特殊性能

  • 单组分
  • 易流动的
  • 电绝缘性
  • 缩合固化
  • 耐紫外线性和耐候性
  • 阻燃性

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。

  • General purpose coating, in particular for applications demanding fire resistance (electrical coils of small transformers or chokes) 
  • Encapsulation of  electrical devices; 
  • Typical fileds of applicaton: electrical industry, railway industry.


ELASTOSIL® N 2076 is a is a ready-to-use, one-part silicone rubber which starts curing when exposed to air moisture. Typical curing characteristics are given in the table "Properties Uncured".

 

As RTV-1 silicones require humidity for curing, free access of air moisture to the silicone rubber is essential. Additionally, the vulcanization time of ELASTOSIL® N 2076 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 silicone rubber.

 

Increasing the curing temperature has just a minor effect both on the skin formation time and the curing speed. ELASTOSIL® N 2076 therefore is vulcanized typically at room temperature.

 

After completion of the vulcanization the silicone elastomer may continuously be exposed to constantly changing climatic conditions, UV radiation and high temperature without damage. Cured ELASTOSIL® N 2076 usually shows good primerless adhesion to many substrates, e.g. glass, ceramics, metals, plastics, powder coatings and materials based on wood. The silicone rubber coating has excellent flame retardant properties, as proven by fire safety tests according to EN 45545, requirement set R22/23 (test certificate available upon request).

 

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 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 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.

Coil Coatings:

ELASTOSIL® N 2076 is designed to create long-lasting, protective coatings with good heat resistance and excellent flame retardant properties.

 

Surface Preparation:
ELASTOSIL® N 2076 shows primerless adhesion to many substrates. However, for optimal adhesion the objects to be coated should be cleaned prior use in order to remove any dirt, rust, oil or grease.

 

Optional handling:

ELASTOSIL® N 2076 is flowable and self-levelling. The product can be used as delievered, or - if necessary - as a solvent-based coating suspension. Suitable organic diluents are non-polar aliphatic solvents, such as technically dry cyclohexane, white spirit or similar aliphatic grades, and non-polar aromatic solvents (e.g. technically dry toluene or xylene).

 

Important:

Once prepared, the solvent containing coating mixture has to be stirred continously in order to prevent the sedimentation of fillers. Furthermore all containers, used for storage or processing, should be humidity-tight and must be kept properly closed, because both the coating formulation and its solvent-based suspension are sensitive to moisture. If needed, the storage containers can be filled and ventilated with dry nitrogen or argon gas in order to additionally block air moisture.

 

Coating:

ELASTOSIL® N 2076 can be applied by any coating method, such as spraying, dipping and brushing. For substrates of simple shape, coating by airless spraying equipment is recommended, because it avoids premature curing of the silicone rubber during the coating process. However, objects with a more complex geometry (such as electrical coils) should be coated by dipping, preferably.

 

Curing:

The curing process already starts during application, in the moment when the uncured ("wet") coating gets in contact with air moisture. When ELASTOSIL® N 2076 is applied from a solvent containing suspension, it is recommended to store the coated objects in a well ventilated place for physical drying untill all solvent has evaporated. While the coating usually gets tack-free within a few hours, full curing requires several days at 23 °C and 50 % rel. humidity.

 

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

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产品 技术数据
Shore density A Breaking strength 断裂伸长率
ELASTOSIL® N 2076 36[1] 36[1] 1.6 N/mm²[2] 1.6 N/mm²[2] 150 %[3] 150 %[3]
说明
[1] Shore density A | DIN ISO 48-4,  [2] Breaking strength | ISO 37 type 1,  [3] 断裂伸长率 | ISO 37 type 1 

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