Tag Archives: black super glue to patch nylon stems

Restoring an older KBB Yello-Bole Imperial Dublin


Blog by Steve Laug

This is the last of the pipes I picked up when I was down in Washington State with my wife for 38th Anniversary. It is an older KBB (no ampersand between the two B’s). It had no shape numbers on the right side of the shank, but on the left side it had the KBB in the cloverleaf/club and next to it was stamped Yello-Bole over Imperial over Imported Briar. The Imperial stamping had been over-stamped with a cross hatch pattern. The bowl was in decent shape. The finish had dark soiling and oils on both sides of the bowl. There were also some dark spots on the sides of the bowl. There was a heavy coat of varnish over the bowl except for the worn spots where the oils and darkening was. The rim was heavily caked with tars and oils. The bowl was caked from the top half way down the bowl, though the yellow honey coating was still visible on the bottom half of the bowl. There were some burn marks along the outer edge and top of the rim.

Again since Yello-Bole is one of my favourite older US brands I did some more reading online to see if I could narrow down when this one was made. I have come to understand that these older Yello-Boles are great smoking pipes and underrated. I turned to one of my go to sources of information on all things KBB and Kaywoodie – the Kaywoodie forum http://kaywoodie.myfreeforum.org/ftopic13-0-asc-0.php. There I found a very helpful article by Dave Whitney that helped narrow down the date. The pipe I have has the shovel drinkless mechanism, the KBB-in-a-clover logo on the left side of the shank and the yellow circle on the stem. From what I can ascertain from Dave’s information it seems to have been produced between the years of 1938-42. I am fairly certain that it did not come from the later period of 1945-50 (World War II) since it did not have the aluminum stem ring and the aluminum drinkless mechanism which came out during those years.

The photos below show the pipe as it was when I found it in the antique shop. IMG_7924 IMG_7926 IMG_7923 IMG_7927 The stem is made of nylon rather than vulcanite. It has the yellow circle inset in the top near the shank of the pipe. The button area was chewed and dented. There was a shallow dent on top of the stem and deeper ones on the underside of the stem next to the button. The button had been chewed down and had deep dents on the underside while the slot had been dented in so that it was not longer straight. IMG_7920 IMG_7922 I sanded the stem down and was able to remove the dents on the topside. The underside tooth mark was too deep to sand or even heat and raise. IMG_7929 I sanded it with 220 grit sandpaper to clean up the chatter further up the stem and then picked the area clean around the large dent with a dental pick. I wiped the stem down with alcohol to clean off the dust and then filled it with black super glue that I purchased from Stewmac online. I filled it the first time and sprayed it with an accelerator. Once it dried it had shrunken and left a divot in the stem surface. I refilled it with the glue and then sprayed it again with the accelerator. I set it aside overnight to cure and worked on the bowl. IMG_7928 IMG_7942 The bowl and rim were caked with an uneven cake so I reamed it with a PipNet pipe reamer to take it back to the briar. The cake was soft and once I removed it from the middle portion of the bowl I could see the yellow coating on the bottom half and partway down from the rim. The only portion that was darkened was in the centre of the bowl. IMG_7930 IMG_7931 I set up my topping board to remove the hard tars on the rim and also the burn damage. Fortunately the burn damage did not go too deep but merely sat on the surface under the tar coat. IMG_7932 I wiped down the bowl with acetone on cotton pads to remove the finish and as much of the dark staining on the side of the bowl as possible. The dark spots were deep in the finish of briar so I was not sure I would be able to remove them. IMG_7937 IMG_7934 IMG_7936 IMG_7939 Even after wiping down the bowl repeatedly the dark stains on the sides remained, lighter though still present. The dark spots appeared to be ink stains and they too remained. I decided to let the bowl soak in an alcohol bath overnight and address it again in the morning. IMG_7941 The next morning I removed the bowl from the alcohol bath and found that it had done its magic. The stains were gone and the ink stains were significantly lighter. I cleaned out the shank with cotton swabs, pipe cleaners and alcohol. I kept cleaning until the pipe cleaners and swabs came out clean. IMG_7946 I stained the bowl with Fiebings Dark Brown aniline stain. I applied the stain and then flamed and repeated the process until the coverage was even. IMG_7947 IMG_7948 I wiped it down with alcohol on cotton pads to remove some of the opaque colour of the stain and to make the grain more visible. IMG_7949 IMG_7950 IMG_7951 I buffed the bowl with White Diamond. The next three photos show the bowl at this point in the process. IMG_7953 IMG_7954 IMG_7957 Once I had finished the work on the bowl to this point I decided to work on the stem. I used a coarse grit sanding stick to cut the sharp edge of the button. While it worked relatively well I could see that the hardened super glue needed something with more teeth to cut into the repair. I used a file to take off the overfill on the repair and then followed that with the sanding stick and 220 grit sandpaper. IMG_7963 IMG_7964
IMG_7965 I sanded the stem further with the 220 grit sandpaper and then with medium and fine grit sanding sponges to remove the scratches in the surface. I wet sanded with 1500-2400 grit micromesh sanding pads and dry sanded with 3200-12,000 grit pads. Between each grit of micromesh I wiped the stem down with olive oil. I have found that the olive oil allows the micromesh sanding pads to really cut into the surface of the nylon stem. I cleaned up the stinger with alcohol and cotton pads and then 0000 steel wool. IMG_7972 IMG_7979 IMG_7983 I gave the bowl a coat of walnut stain and boiled linseed oil to bring out a shine. I wanted the pipe to have a similar shine to what it originally had when it left the factory but did not want to use a varnish coat. I wiped it on the bowl with a cotton pad and then set it aside to air dry. IMG_7975 Once the finish had dried I buffed the pipe with White Diamond and then gave it several coats of carnauba wax and buffed to a shine with a soft flannel buff. I hand waxed the stem with Paragon Wax as I find that the nylon stems are hard to buff. Without a light touch the wheel can do irreparable damage to the nylon stem. The heat generated by the buffer will actually cause the stem to melt. The final photos below show the finished pipe cleaned, polished and ready to enter into the next years of its life. I think that this one will outlive me if properly cared for by the next pipeman after me. IMG_7986 IMG_7987 IMG_8003 IMG_8008

Using Charcoal Powder and Black Super Glue to Repair a Bite Through on a Nylon Stem


Blog by Steve Laug

With all of the blog posts recently on repairing stems I decided to do a little work on one I had here. I wanted to use a black superglue and carbon mixture to see what I could do with this seriously damaged stem. It was a Medico pipe stem bearing the stamping F. The F stamping is a Medico brand mark but this stem was a different diameter than the shank of the pipe that it had come attached to so I replaced the stem on that pipe. I was left with this one and almost threw it away because the hole was large and on both sides of the stem. That combined with the fact that the stem was nylon would make it less desirable to repair for me. There were also deep tooth marks all around the holes. But I figured it was a perfect stem to do experiments on so went ahead with the repairs. I sanded the stem with 220 grit sandpaper to highlight the tooth marks and the holes. The button itself had dents in it as well and the crease had been flattened.
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I cleaned out the debris from the hole with a dental pick (rather than the Dremel and bur that Joyal uses) and sanded around the edges of the hole with 220 grit sandpaper. I removed all of the loose or damaged material from the hole so that the edges were solid. I sanded them to roughen the edges slightly to provide a surface for the glue to bond to. I used a cotton pad and alcohol to clean out the dust from sanding and picking. I cut a piece of cardboard the same shape as the slot in the stem and greased it with Vaseline. I slipped it into the slot. I made sure that the Vaseline did not ooze out into the hole on either side.
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I used Stew Mac Black super glue to build up the edges of the holes. I find that I get a much stronger patch/repair if I slowly build up the patch with multiple layers of the glue. I mixed in some carbon powder taken from a charcoal digestive capsule. I put the glue on the edges of the hole; mixed in the carbon and then more glue more carbon to build the first layer. The next series of four photos show the gradual build up of the glue and carbon. The glue was allowed to cure over night between each layer of the repair. I sanded lightly between the layers to roughen the surface of the patch and smooth out some of the pitting. I find that doing so provides a surface for the new layer to bond to.
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Once the patch had thoroughly cured and hardened I sanded it. I test the hardness by pressing a fingernail into the patch. If it is not hard I let it sit longer. Once it is hard I sanded it with 220 grit sandpaper to smooth out the patch. I used a small needle file to redefine the edge of the crease. Nylon turns white when sanded and so did the patch fortunately. The patch was slightly darker than the stem at this point but would blend in with further sanding.
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I sanded the stem with a medium and fine grit sanding sponge to remove the scratches. I further redefined the crease to sharpen it. The repairs are visible in the photos as slightly darker than the stem colour at this point.
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In the process of the sanding I noticed that the dents in the button itself were not filled enough so I cleaned them out and filled them with black super glue. I also used black super glue to refill some spots on the surface of the blade that seemed to be pitted after the sanding. I sanded these after they were dry using 220 grit sandpaper followed by medium and fine grit sanding sponges. Once the surfaces were flat and smooth to my liking it was time to turn to sanding with the micromesh sanding pads. I wet sanded with 1500-2400 grit pads and dry sanded with 3200-12000 grit pads. I went back to the sanding sponges several times when I found that some of the scratches were not adequately removed. I then repeated the wet and dry sanding with the micromesh pads until the surface was shiny and smooth and the patches blended into the stem.
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I rubbed the stem down with Obsidian Oil and when it was dry hand buffed the s tem and then resanded with the 3200-12,000 grit micromesh sanding pads.
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I polished the finished stem lightly with White Diamond. You have to have a very light touch when buffing nylon as the heat the buffing creates melts the nylon and creates a mess. In this case I just lightly touched it and then gave it a light coating of carnauba wax and then hand buffed it. I gave the stem several coats of Paragon Wax and hand buffed it. The finished stem is shown in the photos below.
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