Step Three: You wait. Depending on what type of glass etching cream you buy you should wait between 30 seconds and 5 minutes. I found that waiting longer was better...I think my patience wore out at around 5 minutes 30 seconds and that's when I removed the cream.
Step Four: Wash off the cream. If you are frugal and want this cream to stretch farther you can simply use your brush to wipe most of the cream off and put back into the container for future use. I was apprehensive to do this the first time around but then realized how much was WASTED and quickly changed my ways.
I even took pictures the second time around. The "M" still has the thick layers of cream on it, and I have wiped off most of the excess from the other letters.
To wash off the cream you can just stick it under the faucet. Again, I was sooo nervous to do this because I didn't want the power of the faucet to "wash-off" my design. Yeah, that's not going to happen. I just like to worry.
Oh, and the cream doesn't just "wash-off" all that easily. You have to kind of help it along. Don't be worried, you're not going to mess up the design. (another worry of mine)
Here's some pictures of what it looks like after wash and before pulling off the stencil. I was SO worried that I had washed the etching right off!! As long as you don't worry you will be fine...or if you do worry it will still be fine ;)
The last step is to pull off the stencil or Contact Paper. Luckily Contact Paper doesn't leave a residue, but if your stencil does leave a residue then you can just wash the glass with soap to get it off.
Have fun with glass etching, I have many more etched glass projects I'm dying to try...you can really let your imagination run wild with this one!