@jsuehl They would last the same.

I assume you are just doing the horizontals? TWP would work well but does not matter if semi-transparent or semi-solid. Both will wear the same.

Not sure what you mean. Can you take a screenshot of the error message and post it here?

Deck Resurface stains like this cannot be stripped. Only sanded or grinded off. See here for tips:

No need to sand. Using the wrong stain brands most likely.

Prep with the Restore A Deck Stain Stripper and Brightener kit to remove all the old stain while pressure washing (Penofin?). For the new stain, you w...

You have to remove the old coating fully and this means you need to strip (not clean) and brighten. Use the Restore A Deck Stripper with both additive...

@franz We do not.

@edwhit Post pics for prep advice. Once done, use TWP 1500 Serie or Armstrong Clark Stains. Both are much better than Penofin and SW deck stains.

It is just a trim board (mostly vertical wood) so it probably does not matter that much what you use.

Post some pics for prep help. This article may help as well:

@franz Defy is much better for sure.

You can stain over this. We would use a solid stain for the trim board.

Yes, the right side looks good. Leaving it on longer will make it easier to remove. Try another section of say about 3 sq feet. Leave one for 3-4 hour...

@franz Coverage can vary so at least 4 gallons, maybe more. Make sure to do a test spot to determine how thick to apply and how long to let it dwell. ...