Rusty PCBs?

Wether you're etching or CNC milling your own PCBs, the copper layer on the substrate will eventually begin to oxidize and rust. The best way to prolong the life of your PCBs is to give them a protective coating. This is where PCB Solder Masks come into play.

Solder masks resist solder and act as a protective layer that rests on top of the copper traces. It's the green stuff found on most common PCBs. Solder masks can take high temperates, so it can handle the intense heat from the tip of a soldering iron.

Mechanic's Solder Mask

UV curable solder mask is a special type of resin that hardens when exposed to ultraviolet light. It comes different colors in a syringe type tube. You can find it online or purchase it from your local electronics hobby shop. 

There's a few household items and supplies that can help assist the procedure. Most important parts needed is the UV resin and transparency film.  

  • UV Curable Solder Mask Resin
  • Transparency Film
  • Isopropyl alcohol
  • Nitrile gloves
  • Paper towels
  • Topperware tray
  • X-acto knife
  • Ruler / T-square
  • Silicone mat
  • Cutting mat
1 x Transparency Film
Quick Dry type for InkJet Printers

This guide was first published on Nov 01, 2017. It was last updated on Nov 01, 2017.

This page (Overview) was last updated on Oct 30, 2017.

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