Restaining patio ceiling

Watco is an interior wood finish. The RAD stripper is designed to remove exterior wood stains. I do not think it will work.

Thanks for your reply. Does anyone have any advice on what I should do? Should I just try to clean it and restain with the same Watco and add a sealer in it?

Thanks

Well I used cabots stain remover and it worked on the watco stain. Then I used there brightener after. I seem to be getting some rough and raised grain after. Is this normal? So, if cabots worked on this, could I use RAD?

If the Cabot worked than the RAD should. Raising the grain can happen sometimes with a stripper. Sand lightly if needed when done.