eric1514 wrote:
I used this product Dicor Rubber roof Coating a couple of years ago when the black started to show through on my roof.
No personal experience, but everybody is raving about
Liquid Rubber. Haven't heard of this Dicor coating before, probably something similar. No wonder CW discounted it to $70, hard to beat the competitor price. Here is the
company website, and if you click on the product there is more and technical info. Their "Liquid Roof" is reportedly identical, with a markup for "RV" letters on the label. Seeing this all the time, call it RV-something and jack the price up.
Whatever you choose, make sure you order White color :)...
PS: if it's just one patch 3"x3", it could be too early to re-coat the entire roof and/or use rubber-like coating. Original paint is unstable, it's oxidizing and coming off in a form of powder all the time, black spot doesn't mean you need more rubber on top of the original rubber. If the roof is less than 10 years, I would paint the spot and give it another year or two.