I carried a Beaufort inflatable
for 6 years, always inflated, upside down on the foredeck when sailing in the high tropics. I carried it for another few years on the Oz Great barrier reef
I can't remember what it was called, but there is a recommended paint
for the material. I painted mine all over in white. This protected it on deck
or afloat, & kept the tubes cool enough to sit on in swimming gear
. From memory it required painting every 9 months or so.