If you're referring to on the roof, more than likely Dicor 501 or 502. Same product really with 2 different numbers. On the sidewalls, pretty much your choice on what you want to go back with. My preference and many others is the Geocel Proflex. Very flexible through hot and cold seasons and sticks to pretty much anything (just can't use it on the roof). Most can be found at any RV place and there are several online suppliers.
John and Rebecca Dickson
Emma-8 / Little John-5 / Iva-1+
2013 Ford F-350 Lariat FX4, CC LB PSD, DRW
2015 Jayco Jay Flight 28BHBE (#8)