I also sprayed up with acf 50 in October and didn't clean it again until march.

I missed the two bolts on the number plate with the acf50, they got very rusty. But the rest of bike was perfect. It was a risk and I was worried as it got dirtier and dirtier. I was relieved to see it unaffected.

Saved a lot of colds hands and wet feet on dark winter nights.