1, contact can cause skin allergy: in circuit board manufacturers, three-proof paint is often sprayed on circuit boards by hand. During spraying, workers should wear protective tools such as leather gloves to avoid physical contact with the three-proof paint. Because contact with the three-proof coating will lead to skin allergies, rashes and other adverse reactions.

2, stimulate the respiratory tract, harmful to the body: the three-proof paint used in the circuit board will emit a very irritating and unpleasant smell, which will stimulate our respiratory tract. If inhaled for a long time, it is prone to nausea, dizziness and other symptoms, causing harm to the body. So try to keep ventilation and wear a mask.

Extended data:

Precautions:

1. Check the tooling for leakage and pollution. If so, select the tooling and report it in time.

2. When pasting adhesive tape (solder resist), don't paste it on paper bar code (stick it on veneer or component).

3. The anti-static wrist strap must be attached to the tearing tape (point tearing and welding resistance).

4, stick tear tape (point tear resistance welding) must pay attention to protect the veneer, don't touch off the components.

5. Veneers that have been operated and caused defects should be placed separately and marked.

6. After the operator finishes his homework, he must conduct self-inspection on the single board. When placing each single board, there should be a certain gap between the boards, about 1cm, which cannot exceed. When pushing the trolley, he must push it with both hands. It is forbidden to push hard or let the car roll by itself.

7. For the cured PCB, when the adhesive tape (solder mask) is torn, visually inspect it with an ultraviolet lamp to check whether there are any missing spray or patch components covered by the adhesive tape (solder mask). If there is, it must be painted and polished.

Baidu encyclopedia-three-proof paint for -PCB circuit board