K-5312L RTV Electrical Silicone Sealant AB (Black)
Usage
- Used for electronic components such as circuit boards or electronic devices.
- Resistant to changes in hot and cold temperatures and capable of protecting against moisture. Non-corrosive and does not contain pollutants.
Specific Characteristics
- Non-rigid | Exterior Appearance: White/Black
- Density (g/cm^3): A = 1.1
1.25, B = 0.981.00 - Viscosity (mpa.s): A = 1500
3500, B = 20100 - Mixing Ratio (by weight): A:B = 100:10
- Viscosity after mixing (mpa.s): 1500~3500
- Initial Setting Time (25℃, min): 3~5
- Setting Time (25℃, min): 30~60
- Full Curing Time (25℃, hour): 24
Rigidity | Physical Properties
- Hardness (Shore A): 10~20
Electrical Properties
- Dielectric Strength (kV/mm): ≥ 15
- Dielectric Constant (100KHz): ≤ 3
- Dielectric Loss (100KHz): 1.0~6.0×10^-3
- Volume Resistivity (Ω.cm): ≥ 1.0×10^14
- Thermal Conductivity (w/m.k): ≥ 0.3
Instructions:
- Clean the container for the adhesive and the circuit board material.
- Before use, weigh substance A before mixing with substance B to ensure accuracy according to the mixing ratio.
- Adjust the mixing ratio as needed for the current application.
- Promptly close the container of substance B after weighing and pouring into the container with substance A. Then, thoroughly mix both substances.
- Apply the mixed adhesive onto the PCB or circuit board material as quickly as possible.
- Allow the adhesive to fully cure for 24 hours once the board is completely covered.
Precautions
- Check whether the circuit board material to be used with this product is usable and undamaged.
- Additional substance B can be added to accelerate the curing time, but it may affect the adhesive’s properties.
- Higher ambient temperatures will reduce the adhesive’s curing time. Avoid using near flames or direct heat to maintain adhesive curing and performance.
- If the circuit board material is less than 20 millimeters thick, air bubbles can be naturally removed. Otherwise, use a vacuum degassing machine to remove air bubbles from the adhesive.
Storage
- Store substance A and substance B separately in a dry place away from sunlight at temperatures ≤ 25℃.
- After use, tightly close the container lid to extend its shelf life for future use.
- Shelf life is 9 months after production.
