Redwood deck finish. Used Flood CWF-UV5. Thinking of re-coating
We have a redwood deck here in Sonora, CA. Mild winters but hot, sunny summers. The deck is 6 years old. I originally put on Flood CWF-UV5. and then re-coated it a few years later with the same product. Now, there are places where the finish seems to be totally gone and it’s spotty. Just here and there It has been 2 or 3 years since the last re-coat. Should I put the Flood CWF-UV5 on again or is there a better choice. Do I have to sand off the old finish?
Thanks,