01-22-2014, 01:29 PM
#1
User Info
Newbie to this board here, but not to wet shaving.

I've just received my first Semogue brush, a 2012 boar-badger Special Edition, and I'm surprised by the outsized glue bump, 14mm in a 52mm loft (measured with needle test). That's 27 percent of the loft.

Is this the way Semogue normally builds these brushes, for extra backbone, or did I get an outlier?

If it's the Semogue style, I'll use the brush and see how I like it. If it's atypical, I'll send it back.

Thanks in advance for your help.

8 14
Reply
 01-22-2014, 01:37 PM
#2
User Info
Looks normal. In my large Semogue collection, some of them have glue bumps such as that one.

I guess it's just the nature of it. However, I don't have that model in particular, and I may be wrong.

2 5,547
Reply
 01-22-2014, 01:44 PM
#3
  • Teiste
  • Moderator Emeritus
  • Salt Lake City,UT
User Info
Mine has that same glue bump.Never experienced any problems with it.

88 7,214
Reply
 01-22-2014, 01:51 PM
#4
User Info
+3 with the glue bump being normal!

82 21,077
Reply
 01-22-2014, 02:01 PM
#5
  • Harvey
  • Senior Member
  • North Hills CA
User Info
What is a glue bump?...never heard of one...can you post a picture?

6 2,022
Reply
 01-22-2014, 02:17 PM
#6
User Info
You won't see it in a picture. A glue bump is a dome-shaped buildup of glue inside the knot, above the handle. If you pinch the base of the knot, you'll feel it right away. If you want to measure it, slip a needle horizontally through the knot about halfway up, then move it down. It will stop at the top of the bump, and you can measure its height from the top of the handle.

Some makers control the glue bump to give a brush a certain feel, as it influences the backbone and spread of the knot. Other times it's just sloppy assembly.

For comparison, my pro-sized Omega boars typically have a 9-10mm bump for approx. 65mm of loft. My Shavemacs, on the other hand, have no bumps at all, though a few out there probably do.

Well, you could see it in a picture . . . if I sawed the brush in half vertically.

Ain't gonna happen!

8 14
Reply
 01-22-2014, 03:23 PM
#7
  • TheMonk
  • Super Moderator
  • Porto, Portugal
User Info
Bruno (Leon) can shed more light on the matter than I can, but from what I was told the glue bump is not accidental in the Semogues.
Mr. Gomes does it on purpose, as in his opinion this helps to create a more solid knot, and with some uses and contact with water, the glue bump creates a sort of seal on the hair, stopping the water from getting into the knot itself.

I also disliked glue bumps at first, but this explanation makes sense, and convinced me this is not, by any means, lack of skill, but a particular methodology of work, as valid as any other.

I hope I helped to clear it up a bit.

Cheers.

26 4,927
Reply
 01-22-2014, 04:28 PM
#8
  • Fab
  • Active Member
  • New York, NY
User Info
Signs011
I agree there are cases where a glue bump shows sign of poor craftsmanship, but that is definitely not the case with Semogue. Every brush maker uses different techniques to produce the ideal brush, and Semogue uses this technique to control the knot's backbone.

10 486
Reply
 01-22-2014, 04:28 PM
#9
  • ben74
  • Senior Member
  • Perth, Australia
User Info
Great thread!

99 18,011
Reply
 01-22-2014, 06:47 PM
#10
User Info
(01-22-2014, 03:23 PM)TheMonk Wrote: Bruno (Leon) can shed more light on the matter than I can, but from what I was told the glue bump is not accidental in the Semogues.
Mr. Gomes does it on purpose, as in his opinion this helps to create a more solid knot, and with some uses and contact with water, the glue bump creates a sort of seal on the hair, stopping the water from getting into the knot itself.

I also disliked glue bumps at first, but this explanation makes sense, and convinced me this is not, by any means, lack of skill, but a particular methodology of work, as valid as any other.

I hope I helped to clear it up a bit.

Cheers.

(01-22-2014, 04:28 PM)Fab Wrote: Signs011
I agree there are cases where a glue bump shows sign of poor craftsmanship, but that is definitely not the case with Semogue. Every brush maker uses different techniques to produce the ideal brush, and Semogue uses this technique to control the knot's backbone.

This was my understanding from Sr. Gomez via Bruno, as well. Great brushes, these Semogues.

47 1,270
Reply
 01-23-2014, 06:03 AM
#11
User Info
Both my SOC boar and SOC SE have the glue bump. It doesn't affect the performance of these excellent brushes.

50 6,049
Reply
 01-23-2014, 06:08 AM
#12
User Info
Mine has it too. I was also concerned about it when I received it in the mail but most people have reassured me that this is normal.

63 1,720
Reply
 01-23-2014, 07:53 AM
#13
  • river1
  • Active Member
  • Coastal South Carolina
User Info
My iKon SS Brush also has a small glue knot that is perfectly formed and is preferred in the heavy SS models to stabilize and seal the knot, so I am told. It makes sense and gives a feeling of secureness. Some restoring older handles, especially the metal ones, tell you to give it the seal and also to scratch lightly the inside of the handle where the knot will be glued.

11 303
Reply
 01-23-2014, 09:50 AM
#14
User Info
Totally normal. They could sink the knot a little lower into the handle, but since they use a metal ring, that is not exactly practical since they'd need deeper metal cups.

Haven't noticed any difference with boar knots whether you sink the knot deeper or not. Could just be me though.

9 3,036
Reply
 01-24-2014, 10:53 AM
#15
User Info
Thanks to all of you who've posted.

It's reassuring to know the brush's construction is typical for the Semogue style. I've started breaking it in and am pleased with it so far.

8 14
Reply
 01-24-2014, 10:59 AM
#16
User Info
Ive never heard of this glue bump either

Sent from my SGH-I337M using Tapatalk

0 63
Reply
 01-25-2014, 08:06 AM
#17
User Info
I use nothing else but a semogue owners club boar and the glue bump makes no difference whatsoever!
Super brush!!
Jimmy

0 475
Reply
Users browsing this thread: 1 Guest(s)