What can you use instead of solder mask?

One popular alternative to solder mask is conformal coating. It is a thin protective film applied to the surface of a PCB to protect it from environmental factors such as moisture, dust, and chemicals. Conformal coatings are available in various types, such as acrylic, silicone, and urethane, depending on the specific requirements of the application.

Liquid Photoimageable Solder Mask (LPSM) is another alternative to traditional solder mask. This type of solder mask is applied as a liquid and then cured by exposure to UV light. LPSM can be used to create complex patterns, shapes, and designs on the PCB. It is also ideal for small-run production, where the cost of producing a solder mask template is not justified.

Dry film solder mask is a pre-made film that can be laminated onto the PCB surface. It is a clean and efficient solution that can be used to protect the PCB from environmental factors. Dry film solder mask is flexible and can conform to the contours of the PCB, ensuring full coverage.