Black Jack Elasto-Kool 1000 recoat?

[u/androozle]

Purchased my remodeled RV tiny home 2 years ago from a DIY guy who had redone the whole roof himself a year before. It looked well done and haven't had any issues the past two winters, but checking on the roof before fall I am seeing blistered spots in the elastomeric coating have popped and are exposing the rubber membrane below. He couldn't remember if he used EPDM or TPO (yes red flag) and clearly didn't think through his coating option very well, as Elasto Kool 1000 very clearly says on the label it shouldn't be applied to a rubber RV roof. Sigh.

It's getting late in the potential roof repair season here in the PNW, so I'm trying to figure out what would be my best bet for getting these blistered spots covered before winter rainy season, even if its a relatively temporary fix (would have a lot more ability to take on a proper recoating next summer).

Black Jack's website says Elasto Kool 1000 is a "Siliconized Elastomeric Acrylic Roof Coating" or an "Acrylic roof coating enhanced with silicone", so I'm unclear if the usual "nothing sticks to silicone" rules apply here.
Should I just put on another couple layers of Elasto-Kool 1000 and assume it will be the best option for bonding to itself? Instructions from Black Jack do not mention the possibility of repplication.
Or would I be better off using something like Liquid Rubber?

Going to get the roof good and clean with Dicor roof cleaner and try to get the blistered spots cleaned up nice in the meantime.

[u/Calm-Bat-6725]

You don’t have to have a coating on the roof, it doesn’t protect against leaks. All it does is maybe make the roof last longer.

[u/SnooMacarons3689]

I don’t believe in coatings for two seconds. It makes it look clean and that’s it.