This was a very cool test to see the likely hood of my checks being washed, I don’t use checks often and I probably never will after this ![]()
- The best results with the inks tested were with alcohol. Even though I didn’t try with regular acetone, the nail polish really killed the back of the checks whereas the alcohol didn’t do anything to the backs.
- I’ve heard of some people putting tape over the signatures, but I did not even try. I figured it’d be more of a pain trying to get the tape to either stay on or take off than to just forge a signature.
- It looks as if you use gel ink pens, there is a really tough chance of anyone washing your checks. They seem to be a good ink to use against common chemicals.
- Remember if you’re sending checks through the mail there are some precautions you can take to avoid check washing.
- Always drop off your checks at the post office, never mail them from your home mailbox.
- If you have to send a check, make sure it’s wrapped up nicely.
- If you no longer need a check for whatever reason, SHRED IT!!!
- One final note, all the checks that kept the back colors/text (the alcohol tests) all changed from a grey to a blue background. What does that mean? There was probably some dye in the paper to guard against this type of attack.


August 4th, 2008 at 9:07 am
August 12th, 2008 at 12:46 am