[Multihullgirl]

Referring to the factory website... it says, 'use acetone.'

you don't have to take my word for it
Stain Chart: Care and Cleaning: How to: Sunbrella fabrics

 

[Multihullgirl]

IF your canvas is Sunbrella, and if it's really THAT faded, it's probably time to replace it. Sorry if that's not what you want to hear....