I was going to buy some of the 3M conditioner/protector for my new RIB but thought it a bit expensive, so started looking at alternatives. Ended up buying this stuff http://www.pro-detailing.co.uk/produ...od=158&pcat=26
, but have not tried it yet (because my RIB is still being built!).
Renovo market a marine vinyl protector but it is exactly the same product as the car vinyl stuff I bought (I checked with them) and they also confirmed it is suitable for use on PVC and/or Hypalon.
Seems to have great results on classic car tops, so looking forward to trying it on the RIB!