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DEHESIVE® 953

DEHESIVE® 953 is a solvent-based addition crosslinkable silicone recommended for release coatings.



特性

  • fast curing
  • low release at low peel speeds
  • good release stability
  • good bath life
  • suitable for coating PP and PE films and PE-coated paper

DEHESIVE® 953的特殊性能

  • 溶剂型
  • 聚合物

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。

DEHESIVE® 953 may be used for coating of PE-laminated paper and papers. It is particularly recommended for coating of thermoplastic films such as PE and PP.

 

Processing

Generally DEHESIVE® 953 is diluted to give a formulation with an active substance content of about 5 %. However, depending on the substrate and coater system, DEHESIVE® 953 may be used with lower or higher active substance contents. Special care must be taken to select a high quality solvent that will not poison the Pt-catalyst. Common poisons are organo-tin compounds, sulfur compounds (a common source are rolls that have been vulcanized with sulfur), amines, acid amides, zinc stearate and phosphites. The quality of the coating compound can be ensured by using clean vessels of stainless steel, enamel, plastic or glass to prepare the batch.

Batches of coating compound must be prepared in the order given below.

1. First pour DEHESIVE® 953 in several portions and stir slowly until the mixture is homogeneous
2. Add solvent and stir slowly until the mixture is homogeneous
3. Add CRA® release modifier in case CRA® is used and stir slowly until the mixture is homogeneous
4. Thoroughly stir in Crosslinker to this mixture
5. Slowly stir in catalyst.
Local over-concentrations must be avoided.

Suitable solvents are aliphatic and aromatic hydrocarbons (e.g. toluene, white spirit), esters and ketones.

The cure speed depends on the formulation (e.g. the amount of catalyst), type of substrate, quality of solvent, the chosen temperature and the effectiveness of the oven.

Laboratory trials are recommended prior to using the material in production in order to verify that the vulcanization performance suits the intended application.

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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