Made my own solder resist using UV curable dry film laminate, came out great. Take a look! : r/electronics
diy - UV solder mask sticking to cover instead of PCB - Electrical Engineering Stack Exchange
1x 230mm*33 meters*0.06mm Green PET Film Tape, High Temperature Resistant, for PCB Plating, Soldering, Powder Coating Masking|film deals|resistance surfacefilm fish - AliExpress
Fortex Ltd on Twitter: "See our range of Dry Film Solder mask available to buy online, give your #PCBs a professional finish https://t.co/JZfHBoD50w https://t.co/MPnYRXXEol" / Twitter
An Overview of LPI Soldermask and the PCB Manufacturing Process | Bay Area Circuits
Dry film solder mask - Dynamask + Dry film photoresist Dupont T215 | eBay