SMT pcb circuit board applying three anti-paint effect and precautions

Three anti-paint is a specially formulated coating used to protect smt pcb circuit boards and their associated equipment from the environment erosion. The three anti-paint has good resistance to high and low temperature; it forms a transparent protective film after curing, and has superior properties of insulation, anti-moisture, anti-leakage, anti-shock, anti-dust, anti-corrosion, anti-aging and corona resistance.

Moisture is the most common and destructive factor for smt PCB boards. Excessive moisture greatly reduces the insulation resistance between the conductors, accelerates high-speed decomposition, lowers the Q value, and corrodes the conductor. We often see that the metal part of the smt PCB circuit board is made of patina that is due to not coated with three anti-paint so that metal copper and steam, oxygen and its chemical occur reaction.

Applying three anti-paint to smt pcb printed circuit boards and components can reduce or eliminate electronic operating performance degradation when it is likely to be affected by adverse operating conditions. If the coating can maintain its effect for a satisfactory period of time, such as greater than the life of the product, it can be considered as having reached its purpose of coating.

Operational notes:

1. The smt PCB board must be cleaned with wash board water, and alcohol should not be used.

2. After the smt PCB board is fully cured, it can be painted with three anti-paints. The cleaned board can be baked in the oven.

3. If it is sprayed with three anti-paints, shake the bottle before spraying, so that the paint inside can be evenly distributed, and then spray against the board.

4. If it is brushed three anti-paint, brush the paint in the bucket and brush it evenly before brushing.

5. All three anti-paints cure at room temperature is from a few minutes to ten minutes, and full cure is 24 hours. It can be heated to 60 degrees and a half hours so fully cure.