I contacted Garner-Gibson and this is there responce on the coatings:
Our Black Jack 4200 Hypalon white coating is the only one available and compatible with EPDM roof systems. You can order this from your local Lowes store. The remainder of our white coatings specifically state that they are not recommended on EPDM roof systems.
Sonny,Ilana,Michelle and Alex - Hollister California
2001 Bounder 37K Diesel Pusher ISB5.9 Banks350hp.
'06 Touareg V10 TDi-'98 Jetta TDi-93 Geo Tracker