I was lent a very dry and dirty Western headstall and reins to clean and oil up by a family member, and would like to know the best way to go about it. It’s a lighter oil (but discolored and darkened in places due to heavy use and dirt) Tex Tan/Circle Y set that is about 15 years old and isn’t heavy duty harness leather, but just the standard type (not sure if there is a specific name for it). I’ve looked it over and everything seems intact, and there isn’t anything that stands out to me as a safety issue. It just needs a very good cleaning and hydrating.
I’ve tried a lot of things over the years from breaking in very stiff new tack and bringing back dry or over-oiled, greasy or sticky/gummy used tack with a moderate amount of grime, but I’ve never dealt with anything quite this dirty before, and the majority of my experience has been working with English tack. Though I know leather is leather, I also know that certain methods are recommended over others for certain leather types.
The goal is just to get this set as clean as possible so that I won’t be oiling over dirt, though I’m sure the discoloration won’t go away. Then, to get it as hydrated and pliable as possible, so it can resume use as a trail bridle.
I’m questioning whether or not I should use diluted castile like I normally do with grime, since it tends to be drying and this set is already very dry. I otherwise normally use either Higher Standards or Fiebing’s saddle soap, but I’m not sure that’ll be enough to cut through the dirt.
Another thing I’m questioning is how I should go about hydrating it: I’ve dipped pieces in 100% neatsfoot oil in the past (warm the oil, gently roll each individual piece and dip, wipe off excess oil, then hang to dry), but IME this can sometimes attract mildew. It’s otherwise been a great method for extremely dry or very stiff and un-broken in strap goods, but I want to avoid that issue if at all possible. I’ve also just done several light coats of the neatsfoot, which I tend to generally have better luck with in the mildew department, and I’ve also used Lederbalsam leather conditioner with great luck, though I’m not sure that will penetrate the leather like oil.
Also, the Chicago screws on the reins have been sealed with Loctite at some point, and it’s highly unlikely I’ll be able to unscrew them and remove the reins from the bit. Should I just use a toothbrush to get those areas as best as I can? I know it’s definitely not ideal, but I’m not sure what else can be done.
I’d love to hear of methods you’ve used to clean up and get a dirty, dry bridle back in good shape.