UV Solder Mask Set for PCBs
Product information:
UV solder mask kit for repairing printed circuit boards. Use the syringe and brush to apply the UV-sensitive varnish to the PCB where traces or damage need to be masked. Then, expose the varnish to the UV lamp for 5 to 10 seconds until it hardens.
The UV lamp works on 3 AAA penlite batteries (not included).