Originally Posted by wildtsail
Black vertical streaks, some darker than others.
After cleaning when it does rain they come back right away, but like I said this never happened on my old boats and the rain water in NE is from only the finest springs in Maine smile
I compounded the crap out of my 20 and waxed it and it looked great sailing in in the Steeplechase and Tybee, but I sold it the day after so I don't know how it looks now.


Dirty rain and/or mildew. My boats get it very very fast in SC. I usually keep a cover on them when prevents it but every now and then I leave the cover off and just one rain causes the streaks. If the boat is relatively clean, I don't bother washing it, I just wax it and the solvents in the wax will remove the streaks.

The roofs on the houses around here are run amuck with it (you can see it particularly on the roofs that are not black). Zinc (washing off roof fittings) will eradicate the black streaks on the roof shingles which makes me think it's a mildew thing.

Jake Kohl