Product Name
Thermally Conductive Silicone Encapsulant
OSiTC 2025C
Product Characteristics
OSiTC 2025C Silicone encapsulant is a condensed silicone material that cures at room temperature. This two-component elastomeric silicone is designed to pot and protect electronics under harsh conditions.
OSiTC 2025C Silicone encapsulants use a new technology that cures well without heating. After thoroughly mixing the A and B components in a ratio of 100:10 (weight or volume ratio) during use, the product cures over a certain period of time to form an elastic cushioning material. Cured elastomers have the following properties:
Resistant to moisture, dirt and other atmospheric components
Reduces mechanical stress and tension caused by mechanical, thermal shock and vibration
Easy to patch
Good high-frequency electrical performance
Good adhesive properties
It can be used between -50~150°C
General Performance
| Test Item | Test Standard | Unit | A Component | B Component |
| Appearance | Visually | --- | black/white viscous liquid | Colorless transparent liquid |
| 1# | 3# |
| Viscosity | GB/T 10247-2008 | mPa·s(25° C) | 2500土500 | ≤50 | ≤50 |
| Density | GB/T 13354-92 | g/cm³(25° C) | 1.17土0.05 | 0.99 | 0.99 |
Operation Process
| Item | Unit/Condition | Value |
| 1# | 3# |
| Mixing ratio | Weight ratio | 100:10 |
| Mixing ratio | Volume ratio | 100:11.5 |
| Mixing viscosity | mPa·s(25° C) | 1800土500 |
| Mixing density | g/cm³(25° C) | 1.12 |
|
| Operating Time(1) | Min(25° C) | 20土5 | 40土10 |
| Curing time | ° C/hr | 25/24 | 25/24 |
(1) The operation time is tested by the amount of 100g OSiTC 2025C.
Take out the two components of A and B in proportion, stir and mix evenly, remove air bubbles in vacuum, and pour them on the product to be potted during the operation period. If the potting product is too large, it is recommended to fill it in parts. Get a free guide.
Operational Precautions
1. If the OSiTC 2025C is placed for too long, it will produce precipitation, so it is recommended to stir the A component evenly before taking it and pay attention to sealing and storing it after taking it. Component B will become darker after being placed for a period of time, which is a normal phenomenon and does not affect the use.
2. When stirring, attention should be paid to stirring in the same direction, otherwise too many bubbles will be mixed, and the OSiTC 2025C material at the frame and bottom of the container should also be stirred evenly, otherwise there will be a local non-curing phenomenon caused by uneven stirring.
3. Pouring onto the product and vacuuming again to remove air bubbles can improve the comprehensive performance of the cured product.
4. Air humidity has an impact on the curing speed of this product, so there will be regional differences and climate differences in product curing.
Typical Performance
| Test Item | Test Standard | Unit | Value |
| 1# | 3# |
| Hardness | GB/T 531.1-2008 | Shore A | 25±5 | 25±5 |
| Thermal conductivity | ISO 22007-2.2 | W/mK | 0.20-0.30 |
| Coefficient of expansion | ISO 11359-2:1999 | μ m/(m·℃) | 550 |
| Water absorption | GB/T 1034-2008 | (24h, 25°C) % | 0.03 |
| Dielectric strength | GB/T 1408.1-2016 | kV/mm(25°C) | 18 |
| Loss factor | GB/T 1409-2006 | (1MHz)(25°C) | 0.006 |
| Dielectric constant | GB/T 1409-2006 | (1MHz)(25°C) | 2.55 |
| Volume resistance | GB/T 1410-2006 | (DC500V)Ω·cm | 1.2×1015 |
Note: All of the above data were measured after 7 days of curing at 25°C, 55%RH. The above values are typical.
Packing Specifications
11kg/set A: 10kg/drum B: 1kg/bottle
Storage and Transportation
1. Components A and B need to be protected from light, heat and sealed (can be transported and stored as non-dangerous goods);
2. Storage period Part A: 1 year, Part B: 6 months (25°C).
Safety Operation Information
Product safety information is not included here. Please read the product information, product safety information and package label for safe use before use. Product safety information can be obtained from us. Contact us now.
Quality Assurance Certificate - Please Read It Carefully
We guarantee that the product performance and usage information contained herein is accurate and reliable. However, you should still test its performance, safe use, etc. before using it. Recommendations applied cannot be considered applicable in any state.
Unless we provide a written certificate of suitability for a particular need, we only warrant the specifications set forth in the sales brochure of the product and not any other use. The sole responsibility of the company is to give a refund or exchange if the product does not meet the listed requirements, and the company expressly states that it will not be responsible for accidents.
