Yes, I have. My home had some areas where the oxidation was removed leaving an uneven finish. I heard that I could DS some F13 onto the vinyl and it may or may not need scrubbing. In my experiment, there was no scrubbing. I divided the side of my house up and on part I DS straight F13, on another area a 50/50 mix with water, then 3 parts water 2 parts F13. I applied to the house and let the straight F13 dwell about 10 minutes. The others, I let them stay on 15 min, maybe 20. In the end, all those dilutions gave decent results but the one I’ll use is the 50/50 with water and let dwell 15 min. I think the side of my house looks 100% better. Oddly, I don’t seem to have an after pic. I’ll get one and upload in a bit.
Update: I added the after pics
