Using 99% sodium hydroxide beads how many ounces do I need to add to a gallon of water to remove old finish from my log home ?
Welcome to the forum!
To your question:
1-Hydroxide is EXTREMELY dangerous in both pure form and diluted. Follow all MSDS safety recommendations.
2-There are several factors that would determine the dilution required, including type of sealer, layers, condition of the wood, age of the sealer, the list goes on. If you can provide some details about the sealer or some pictures I can be of more help.
3- Log siding is about the most difficult place to start cleaning wood. If you haven't done it before, be prepared for a very difficult day(s).
Finally, though I'm sure it's not what you want to hear, log home restoration is really a task best saved for a professional hand. Some members of our forum are located in Texas, perhaps nearby. I'm sure they'd love the opportunity to bid the cleaning for you. You might find it's in your budget.
Post some more details, maybe I can be more helpful.
Jake