We are absolutely not the same company.
I own Raftfix and have since its beginning in 2006.
Unfortunately Whitewater Inflatable Repair/ IT is also owned by a guy named Zach who used to work for IT and then opened WIR. WIR bought IT's name and website awhile back. I am not sure if he is operating under only the name IT now or if he is using both. It would make sense to use IT since it is a well known name.
It has certainly caused confusion since the two repair shops in denver are owned by guys named zach. I thought he should have changed his name when he opened the shop, but no such luck. I am sure it has scored him some buisiness. He knows his shit as well and i'd recommend calling him for free advice or bringing the boat to me if you want it professionally done.
I have had great luck getting System 6 and Flextuff 50/90 to adhere well to used PVC boats. I haven't ever used the Maravia product but cannot imagine it is that different. As with any paint job it is all about prepwork. Follow the directions on either product and it will come out well.