Haven't tried that Lance I would stay away form liquids. I the sensor gets dirty enough to use them just send it in for cleaning.
I like the Lens Pen, works great and its easy to use. When you get one form the store Artie includes a very nice comprehensive cleaning instructions !!! Won't disappoint
Al,
Do you use only the lens pen and blower on the D3?
I am having a devil of a time keeping the D3 sensor clean. It seems like I am pushing the dust off the sensor somewhere else and then it pops back on the sensor right after I clean it. I use the sensor scope and it looks clean but then after I hook up a lens and shoot a few frames the dust is back.