
Highly Thermal-Conductive Room-Temperature-Cured Silicone Sealant C-719
Before curing | Curing system | De-alcoholized |
Visual appearance | Slightly flowing paste | |
Color | White | |
Specific gravity, g/cm3 | 2.60 | |
Curing | The curing process starts once the product is exposed to the vapour content in the air | |
Surface drying time, in minutes | <5 | |
Film curing (finger sensible), in minutes | <5 | |
Curing speed (at 23ºCand relative humidity of 50%) | ||
Within 48 hours, in mm | >5 | |
Application temperature (ºC) | 5~40 | |
Cured | Specific gravity, g/cm3 | 2.61 |
Hardness (Shore A) | 88 | |
Applicable range of temperature (ºC) | -5~200 | |
Mechanical property after 3 days of curing (at 23ºC & RH50%) | ||
Tensile strength, MPa | 4.4 | |
Permittivity kV/mm | 19 | |
Volumetric resistivity (Ω.cm) | 10 16 | |
Breaking elongation rate, % | 12 | |
Flame retardant grade | UL94V0 | |
Thermal conductivity (W/mK) | 1.5 |

Application
C-719 is widely applied in various fields, including electronic assembly and industrial material fixation etc., especially for adhesive bonding of electronic parts generating heat while in working mode.
- For assembly/erection and fixation of the power supply module;
- Adhesive bonding of the electronic parts that may generate heat and heat radiators;- For assembly of the LED lighting fixture; - For assembly of the auto parts;






Company Profile

Cosil's scope of core businesses is mainly described as below:
2. R&D, manufacturing and sales of products (in large drums) of electronic grade;
3.Technical solutions and services for products that are applicable for various applications involving special surface treatment such as textile coating, building cement waterproof and glass fabric surface etc.


A: We are an experienced factory in Zhangjiagang City, Jiangsu Province.
2.Q: Can it be customized?
A: Yes. Of course. We can design the product according the customers' needs.
3.Q: Could you provide the free sample?
A: Yes. We will provide the free sample, you just need to pay the shipping.
4. Q: How long can I get the free sample?
A: 5-7 days under normal conditions.
5. Q: How long is your delivery time?
A: We usually delivery with 7-10days after receive the customer's payment.
6. Q: Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery and can provide COA.