Custom Window Etching Technique @ PimpRig
There is only a few ways to actually etch something like glass or Plexiglas though all methods involve altering the surface of the material. Acid will eat the top layer of material and your engraver will put small pits into the material giving the illusion of a line or circle. Some companies go as far as to use computer controlled lasers to etch glass and plexiglas. AmberLodge is one of those companies and they do take custom requests, just tell them that Ninjalane sent ya.
Now one of the oldest etching techniques around is to use high-pressure air to blast fine grit sand at whatever you are etching. By masking the areas that you want to protect you can create very detailed images.
"When you have your image, which you wish to apply to a window for etching or paint. You need to lay out your window. The fans, if there are any, drill first. Why? You don’t want to do hours worth of work to finally drill for the fan and have it crack on you. Yes, I talk from experience."
fyi: Sand Blasting also works great for removing old paint and rust from metal and gives you a very clean surface to paint on.
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