
I have used "Restoration Technology - Marine Strip" on fenders before, and it cleans them in seconds! Also works on the badly stained vinyl seats on my previous boat, but I would be afraid to use it on newer vinyl because it is pretty strong.
On Fenders or vinyl, I would treat with 303 Aerospace Protectant afterwards.
http://www.restorationtechnology.biz/marinestrip_home.html(I had purchased from
http://www.boatownerswarehouse.com )
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"Knot Easy" 2000 Horizon 240 Volvo 5.7GS /SX
tow: 2017 Honda PILOT EXL-AWD
prev. boats:
'87 Chaparral 198CXL 4.3 OMC Cobra
'69 Jetstar 16ft Ski Boat, 115hp Yamaha
'68 Aluminum Jon Boat, 3hp Sears
'64 Water Wings