X2. If that wonder sealer contains ANY petroleum distillates at all and you spray it on an EPDM roof membrane, it will immediately cause the membrane to lift/blister from the roof deck. I once sprayed one of those cans of wasp/hornet killer that shoots a stream of pesticide up to 20' on a mud dauber nest built under a slide topper on our fifth wheel. Despite my best effort to avoid it, some of the pesticide dripped on the slide's roof membrane, causing a blister the size of a silver dollar in the membrane.