I figured I’d breathe a little more life into my blue canvas top on the SL320. I ended up using this product below that I bought at a boat store by the marina that is used for marine canvas. It’s a spray of course, but I ended up just pouring it into a round plastic container and then used a paint brush to brush the stuff on, starting from the center and working my way outwards on both sides. I first vacuumed the top to make sure it was dust free. There were a few random drips that got onto either the glass or the paint that I immediately wiped up with paper towels. After a while I could see it start to soak into the canvas and by the next day it had completely vanished. You definitely want to do this in a well ventilated area as it smells like strong nail polish remover and gave me quite the headache. One bottle was more than enough to do the job. I probably had enough left over for another coat, but felt that it was unnecessary since I had liberally brushed it on. It’s hard to tell in the picture but the top now looks a bit darker than before and a little newer as well.