DEF and "CREEP"

If you are storing and using Diesel Exhaust Fluid (DEF) at your facility it is more than likely you have run into the unfortunate effect known as “creep”.  It will present itself as a white, powdery substance that seems to appear out of thin air. This occurs when DEF itself finds its way to atmosphere and then evaporates leaving behind this crystalline solid which is just urea.  As you will surely notice DEF has a propensity for finding its way through every possible opening. Fortunately, urea is a very water soluble chemical. Any substance left behind can be removed with some water and a good scrubbing.              

Below are few helpful tips to help prevent this unsightly issue from occurring:

1.    First make sure all fittings are tight. This still may not do the trick but it will slow down the process.

2.    When using threaded fittings make sure to pipe sealant. Also, make sure it is the proper DEF compatible sealant.

3.    If using stainless steel pipe you may want to consider using welded connections.

4.    Try to break connections the least amount of times possible.

5.    Wipe down equipment and piping daily.

While it may be very difficult to eliminate creep entirely, you can take steps to slow it down and keep your shops and facilities looking good. If you have any more questions on how to remove or prevent this occurrence, ask below and our AiRx team will guide you to the best solution.