I have tried Ribcraft hypalon solvent cleaner to give the toobs a really good clean then applied there restorer which gave exellent results & looked brilliant, but wait for it'
see below for product link
see bottom of page called Ribcraft hypalon colour restorer
then left the boat in the water overnight & by the morning one of the ropes have scuffed the back tube really badly.
it seems to me after applying the colour restorer it leaves a gloss look but after 2-3 weeks it completely wears off only to be left with what i started with