Can you use acid to etch a case window?

[jmebonner]

I have a friend who does etchings on windows, like for cars and trucks. He applies contact paper, then cuts out ther area to be etched and then uses a paste-like acid to do the etching. Has anyone done, or heard of this being done on plexi? Thanks!

[thePh@r@oh]

plexi isnt glass. its plastic it wouldnt "etch" like acid will do to glass. it would probably just melt through.

[jmebonner]

Hmmm, I was hoping to just leave it on for a second and then wipe it off. I'll try it on a small spot on the back first. Thanks for the input.
jme

[Idigguns]

You can get the same effect with a Dremmel. Just go slow, because the Plexi will melt.

[jmebonner]

Right on cue again. I tried the acid, wouldn't even leave a mark at all. I got the outline traced with the Dremel and then the battery died. So, as soon as it charges, I'll be at it again. I also plan on getting a ccfl to highlight the engraving, any suggestions as to which one (needs to be red).

[thekingofpain]

Time for you and your pal to experiment---seems like a short process "could" provide similar results---if you need some window material to find out---lemme know

[thekingofpain]

Yer kidding---it did nothing???
What acid are you using?

[jmebonner]

Beats me, it's a paste. It works very well on glass, but obviously not on plastic. The standard procedure is to tape the image to be traced on the back of the window, apply contact paper on the front side of the glass, cut out the area to be etched and apply the paste. It'll score the glass, but won't harm anything covered with contact paper. Wierd, I know, but it really works like that.

[RedFury]

if you are looking for the etched look on plexi, I'd forget the dremel and just go and get some 800 grit wet/dry paper from the local hobby store. That will give you the etched look, without the potential misgivings of a shaky dremel hand.

Right tool for the job is always the way to go.

[XShadowZxX]

Maybe ur frend can help.