Lorn!! Hold the phone!!!
I've just been informed that our mid '90s Bounders DO, indeed, have EPDM roofs made by Alpha Systems and DO require Proflex Primer before applying the Liquid Roof Material.
The Liquid Roof web site states that Liquid Roof can be applied to any roof surface, but when received, states clearly NOT to be used on Alpha Systems roofs.
I called Liquid Roof, and they said I needed to apply the primer first and everything would be OKAY.
Fleetwood has not yet returned my call, but sent an e-mail that didn't help much. I told them, in an e-mail, that I wanted to re-coat the roof of my '97 Bounder, and asked if it was made by Alpha Systems.
Their answer was: ".....a coating is not needed for the roof. We can only suggest that you go online to the ALPHA website for their recommendations."
I guess that means that the roof was, indeed, made by Alpha. I am now trying to get that clarified via phone.