Okay guys, I know it has likely been posted here already, but I am too lazy to search for it. That and it looks like this forum needs another thread anyway. One of my beloved brushes has a natural hair (badger and boar) knot that fell out. It seems to be fairly clean...maybe a little "glue" on the end of the knot and maybe a little in the handle...but overall...pretty clean. I need one or two or many of you to give me instructions to fix it. I have a pretty good idea...but thought that I would defer to the knowledgeable ones. Any help provided is much appreciated!
I'm absolutely a rookie still but i've been on a brush building spree recently. Perhaps I can help... or at least garner a few tips from other posts.
I use a silicone based adhesive, such as this one pictured. It works well, is waterproof, but not permanent. You can typically pull the knot for future use, if needed.
I think the 'according to hoyle' method would be to measure the hole all the way to the bottom, as well as you're not (at the widest part, as some are known to bloom out past the base). This way you know for sure that if it's all the way in and doesn't have a gap. Since yours was previously set, I'd imagine it's a good fit. Still if you have calipers, it might be worth a quick check.
If using a spacer (thanks to DaveinKY, I use rubber hose gaskets), set that in place first. Basically same as you will with the knot. I do them separate so that I know I get it right before I insert the knot (and two items are shifting around in there on their own). I try my hardest to center it, for what it's worth.
For the knot, I apply a little silicone adhesive to the bottom, as well as around the sides. You have to make sure you don't use a lot, especially if the not fits snug into the hole. Otherwise you'll have the glue pushing up the sides and into your bristles. That's a mess to try... TRY... to clean up. I use a thin layer, covering the bottom and making sure I get just a bit on the edge of the sides. I think this creates the best seal.
I don't know if it's necessary or helps any, but if I have a spacer in there, I'll use you put a little extra into the handle, to fill in the gaps.
I always let them dry for a full 24-48 hours.
Hope that helps!
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