Marv,
I only got to ag-spray one season, but it was enough to learn to hate the chemicals!
To keep the bubble (Bell 47 - Soloy) and the window (Robinson R22) from getting messed up we used Jet-A or Kerosene -
a rag soaking wet with Jet-A would take all the c**p of the bubble and keep it of for a couple of flights.
To clean of the Jet-A a heavy water/dishwash soap solution is best.
Also WD-40 should do the trick.
The plastic never bothered with the Jet-A, but don't even think about Avgas or regular gas....
Thomas
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