I called them last week also to see what sealant to us on my Alpha Systems TPO roof. She also said Dicor is fine. I asked about where I can buy the Alpha Systems 1021 beige like the factory used on my trailer. She said that they make it for Camping World under another name; Super Flex. I looked it up and they did list it, but were out of stock as of last week...
Steve & Sue
2017 Grand Design 297RSTS Travel Trailer
2017 Ford F-350 Lariat Crew Cab diesel 6.7 SW LB 11,500 lb GVWR package
Former: Crossroads ST26RB