By Fluorescent conformal coating Becoat 9060
Product description
9060 is a low viscosity one-component silicone Fluorescent conformal coating that is environmentally friendly, and easy to use. After curing, it forms an optical transparent film with excellent high and low temperature resistance, weather resistance, electrical insulation and excellent waterproof, shock and absorption expansion and contraction, corona resistance and leakage resistance.
It can enhance the moisture-proof and anti-fouling ability of electronic circuits and components, prevent the solder joints and conductors from being eroded, and also shield and eliminate electromagnetic interference and prevent short-circuit of the circuit, and improve the insulation performance of the circuit board.In addition, the protective film of the coating also contributes to the abrasion resistance and solvent resistance of the wires and components, and releases the pressure caused by periodic changes in temperature.
Features
- Low viscosity environmental friendly fluid, solid content of100%
- Transparent single component, easy tooperate
- Easy to brush, spray, dip coating a varietyof processes, curing speed
- Contain fluorescent indicator, check aftersizing
- Good adhesion and no Good adhesion to various circuit boards and nocorrosion
- Stable under 60 ℃, 280 ℃ andelastic
- Excellent dielectricproperties
Typical performance parameters
| Performance | 9060 | 9061 |
| Appearance | Transparent | Transparent |
| Density (g/cm3, 25 ℃) | 0.99 ± 0.03 | 0.99 ± 0.03 |
| Viscosity (mpa.s) | 600 | 1000 |
| Dry time (min, 25 ° C) | 8～12 | 15～20 |
| Initial curing (hr, 25 ° C) 0.1mm | 0.5 | 1 |
| All dry time (hr, 25 ℃) | 72 | 72 |
| Hydrophobicity (HC value) | 1 grade | 1 grade |
| Hardness (Shore A) | 20±3 | 20±3 |
| Tensile strength (MPa) | 0.3 | 0.3 |
| Elongation at break (%) | 100 | 100 |
| Using temperature range (℃) | -60～280 | -60～280 |
| Volume resistivity (Ω cm) | ≥1.0×1015 | ≥1.0×1015 |
| Dielectric strength (kV/·mm) | ≥20 | ≥20 |
| Dielectric constant (1.2MHz) | 2.9 | 2.9 |
Use process
Surface treatment: remove dust, moisture (moisture) and oil from the surface of the object to be coated and keep it dry before applying.
Cover: if some connectors, sockets, switches, boards and other areas are not allowed to have coated materials. Appropriate cover measures should be taken.
Construction:
- According to the complexity of PCB, device distribution density and configuration, it can be applied by different methods such as brushing, spraying and dip
- For small sprays, use manual spray guns, automatic spray, and use 100% paint
- Spray amount pressure will depend on the specific type of spray equipment used. The effect target is that the coating does not hang or
- The thickness of the primary film is generally between 0.1 and 0.4 mm. If a thicker coating is desired, it is best to obtain it by applying two thinner coatings, and it is required that the first layer be completely dried. Allow to apply the secondlayer
Curing: it can be cured at room temperature by laying flat on the support frame after construction. Heating can speed up the curing, recommended heating temperature 50 ℃, 60 ℃ 5-10 mins.
Curing at room temperature: 9060 conformal coating cures by reacting with water vapor at room temperature.The 0.1mm coating will reach the surface dryness in about 10min, and it will take 72 hours to fully cure. Recommended curing conditions are 25 ℃ and at least 50% relative humidity, increasing temperature and humidity can speed up curing.
Repair: Repair the already coated device by simply touching the soldering iron directly onto the coating. Then install new components, then clean the area with a brush or solvent; or clean the solvent; dry and recoat with paint.