You all are welcome. I'm glad you found the article interesting. Hopper Spit seems to hold up very well. It is important to make sure the article treated is warm and then to let it cure. I've been very pleased to see how it works on my 870 that gets a lot of use at still target shoots. I took it to Georgetown, SC last weekend. It was 102 on Friday afternoon, in the 90s on Saturday and humidity was in the 90% range both days of the shoot. I sweated all over that gun but did not have any rust. It's really not made for that but it was good to see that it held up.
The really important part is the cure. It takes a little time for that to happen but after it does. It works very well.
Thanks,
Clark