How to distinguish dry film from wet film

Suzhou screen printing ink, KUNshan PCB screen printing ink, ink dry film manufacturers

1, dry film wet film basically function is similar, but if the surface is not smooth or do not need to establish a thick height or very thin film thickness, manufacturers can consider using wet film. If it is a perforated circuit board, then the dry film will be more suitable. And if the environment is not easy to keep clean, dry film is easier to control the quality of the operation. Although wet film materials are cheaper, they are not widely available. In addition to general considerations, the use should still be considered in accordance with the requirements of the manufacturer's own operating environment.

2. Dry film is easy to operate, but the unit price is slightly higher than wet film. But because it is easy to keep clean and does not need to be baked, it is easier to use. However, for thin film thickness, especially dry film thickness below 15μm is not easy to achieve. In addition, wet film filling ability is its advantage, but because there is no protective film, so it needs higher exposure energy, different views have different pros and cons, which must be carefully compared by the user, in order to get more suitable for their own conclusions.

3, currently the so-called wet film, in the welding paint is almost the use of wet film, as for the application of inner board, the proportion of wet film is also more and more high, this is because of cheap and technology maturity gradually improve. But both inner board production.