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A&B Thermally Conductive Silicone Potting Compound for Electronic Parts C-628T

A&B Thermally Conductive Silicone Potting Compound for Electronic Parts C-628T

Our high-quality thermal grease, silicone sealants, and bulk sealing adhesives are perfect for OEM suppliers and manufacturers These component adhesives ensure optimal performance and reliability in production processes
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Product Characteristics:

C-628T is a kind of addition-reaction silicone potting compound, which has two components, A&B. When the component A and B are mixed in ratio of 1:1, it will be cured gradually and formed into the organic elastomer. It can be cured just at room temperature and cured even faster when heated. It has good flame retardancy and thermal conductivity, which makes it a more suitable potting compound for electrical parts generating heat when in working mode.  

 

Product Parameters:

 

Before curing

 

Curing system

Addition-reaction

Visual appearance

Component A

Grey

Component B

White

Viscosity, cP

Component A

8000

Component B

5000

Specific gravity, g/cm3

2.08

Curing

The curing process of the C-628T begins after mixture of component A&B

Mixture ratio (by volume or mass)

1:1

Gelling time, in minutes

60

Initial viscosity, cP

6500

Curing time when heated at 70, in minutes

40

Curing time at room temperature (20~30), in hours

4~16

Cured

Specific gravity, g/cm3

2.08

Hardness (Shore hardness A)

55

Modulus (when 100% stretched), MPa

0.4

Tensile strength, MPa

0.7

Breaking elongation rate, %

50

Thermal conductivity, W/mK

1.4

Volumetric resistivity, Ω.cm

5.7*1014

Permittivity

2.9

Tangent of dielectric loss angle

1.4*10-3

Breakdown voltage, KV/mm

16

Environmental compliance certification

Rohs

Notes for application:

  • Make sure the surface of base material is clean, dry and free from dust, oily stains or other substances that may adversely impact normal curing and adhesion of the Product;
  • Unpack the two components, agitate and premix them in ratio of 1:1 by weight;
  • Mix the two components thoroughly, vacuum degas the mixture and then immediately fill it into the electronic parts to be protected by potting compound.
  • Allow the potting compound to be cured at room temperature or under heated condition;
  • Once unpacked yet not mixed, it shall be fully consumed as earlier as possible. If not, store the residues in a sealed status and keep it from being exposed to water content in the air.

 

Precautions for Application:

  1. The silicone potting compound once put in storage may have few sediment laying at bottom of its container, therefore, before using it, try to disturb and mix them with the floating oil on top effectively, and then mix A and B by ratio of 1:1.
  2.  Once mixed and placed under a temperature below 25, it will only have about 60 minutes to work, otherwise, it will become too dense or even solidified to be poured for filling.
  3. Curing time of the silicone potting compound varies at different temperatures, which is about 4~16 hours if at 25, 40 minutes if at 60and 2~3 days if at 10.
  4. Exposure to some chemicals such as sulfur-containing compounds, organic compounds containing amino groups, olefins or alkynes etc might be poisoning to the catalyst of the Product and thereby lead to a longer curing time or even failure of curing.

 

Storage and Shelf Life:

C-628T has a valid shelf life of 12 months when its unpacked and stored at room temperature. Try to fully consume the unpacked product as earlier as possible .
  

Safety Precautions:

Please refer to MSDS of the Product for details.

 

Limited Liabilities Disclaimer:

This Technical Datasheet of the Product truly represents results of various tests performed by Cosil by applying all of the existing testing approaches, however, it may not substitute any necessary test to be performed by the User before put the Product on trial as each scenario of application is specific to and thereby unique for each User. ONLY results of the tests performed by the User may be used by it to justify whether the Product is suitable for any of its applications. Cosil only warrants that the Product is proven to be in compliance with Cosils specification for ex-factory quality inspection, and Cosil does not make other warrants of any form, nor does it accept any claim clauses. In case of any issue arising from or concerning quality of the Product, Cosil shall be entitled to perform relevant tests once again on quality of the Product. If the quality of the Product is confirmed to be the cause of issue, Cosils liabilities will be only restricted or limited to replacing the Product in question or returning the amount of payment from sales of such Product, and Cosil will bear no liabilities for any indirect or consequential damage thereof. The User shall be responsible for complying with local safety rules and laws, and acquiring all licenses and permits as necessary. Cosil will bear no responsibilities or liabilities for any safety incidents occurred and/or losses incurred thereof in process of application of the Product. Its duty of the User to check and make sure it has the latest version of the Technical Datasheet in hand, and Cosil may provide additional data/information(if any) upon the Users request. Content of recommendation and/or suggestive remarks concerning application of the Product in this Technical Datasheet shall in no case be deemed or alleged as the cause for infringement of any patent rights.       

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