Soldermask is functionally the "mask layer" that defines the size and location of all of the solderable surfaces of a PCB. This layer protects much of the copper surface of the PCB from oxidation and allows the other conductors of the outer layers to remain isolated during assembly processes. 


Sunstone offers a variety of additional soldermask colors (blue, black, red, white, yellow, orange and purple) through PCBExpress, PCBpro and Custom Quote to allow further customization to your PCB. Proud of your alma matter?  Customize your PCB with your school colors.

PCB Solder Mask Colors

See soldermask capabilities for the minimum dam widths, clearances and registration tolerances.