Painting requirements:
1. Paint thickness: the paint film thickness shall be controlled at 0.05mm-0.15mm. Dry film thickness is 25um-40um.
2. Secondary coating: In order to ensure the thickness of products with high protection requirements, secondary coating can be carried out after the paint film is cured (whether to enter or not is determined according to requirements) Line secondary coating).
3. Inspection and repair: visually check whether the coated circuit board meets the quality requirements and repair the problems. Such as: pins and others Protected areas are stained with three-proof paint, which can be scrubbed clean with tweezers and absorbent cotton balls or clean cotton balls dipped in washing water. Be careful not to paint normally when scrubbing. Wash off the membrane.
4. Component replacement: After the paint film is cured, if you want to replace the component, you can do the following:
(1) directly weld the components with ferrochrome, and then clean the substances around the pads with cotton cloth dipped in plate water.
(2) welding substitute components
(3) dip a brush into the three-proof paint brush to coat the welding parts, and dry and cure the paint film surface.
