I think its important to apply light coats after a coat it was dry and i would go back and start over.
Rv roof chalky.
As a rubber roof gets older it will get a chalky texture because the rubber is wearing down.
The protective layer on an rv rubber roof becomes chalky and wears off slowly over time.
Edpm roofs will get chalky over time.
Epdm is an extremely durable synthetic rubber roofing membrane.
Iirc a few members have posted the formula to use as a cleaner on roofs.
This chalky layer protects the rubber from degradation.
Epdm roofs start to look chalky and some streaks may appear on the sides after it rains.
You will also notice white streaks showing up on the radius where the roof ties to the sides of your coach.
Learn how to repair and maintain a rubber rv roof.
It is that frustratingly corrosive oxidation on your rv.
Sealing and caulking around the rv roof s edges as well as along air conditioners air vents and venting systems will prevent you from spending on hefty repairs.
Most likely at some point during an rv rubber roof s life it will need a new rv roof coating.
If you spot an rv with a rubber roof that looks loose or swollen the owner most probably used petroleum products to clean it.
Next clear dry couple of days wash it and treat it.
Fast forward six months down the country road and your new vehicle will look a lot duller chalky and maybe a bit more yellowed than you remember.
This will only happen on rubber roofs.
It will also prevent water damage into your rv and keep air from escaping to the outside.
When i had the chalky roof i cleaned with scrubbing bubbles and a 3m type scrubby on a floor mop.
After it dried a placed 4 or 5 supper light coats of zep floor wax that can be bought at home depot i used less then a quart to do the roof.
There are commercial products made for roof treatmemts.