I bought some Spray Nine at my local supplier because it was said to be good and it was cheap.
I used it about a month ago and it cleaned the vinyl the best of anything I have used. Could have been the brush, the cleaner, or both but it worked great.
I used it again this weekend before putting the boat away and when I sprayed it out it was clear but then turned yellow in spots on my white vinyl. It came out in the sun but has anyone experienced this before?
I am thinking it could be a reaction with something else on the vinyl - sunscreen, 303 protectant, etc.