I used something on a very weathered deck that made it look almost new again.
Flood CWF-UV Wood Finish.
I used the clear, but they have other stain colors.
Chuckle… 16 years ago, I built a fence around my property. 6 foot high, double row, 8 foot wide panels. I bought 15 cans of CWF flood, intending to waterproof and stain the entire fence. 16 years later…Those cans are still sitting in my shed… Talk about procrastination…