Best technique for gluing cut rubber back on

Sometimes it's almost impossible when the glue affects the rubber by expanding it slightly, which almost always seems to happen with my gluing jobs.  I just sand the edge a bit and thus can get it to line up with blade near perfectly.

Brainstorm69 wrote: So what's the best technique for gluing a rubber back on a blade and getting it back on without misaligning it so that you don't have complete coverage on one side of the blade, and overage on the other?  I just had to reglue my M3 back on my K-6, and try as I might, I missed getting it perfectly aligned.  it's only probably only a mm or two off, but unfortunately, it bugs me! Anybody got a foolproof way of doing so I can avoid this in the future?

 

Edited by smackman - 02/05/2013 at 7:28pm

After the initial 2 coats of RC on the sponge, I don't add anymore RC.  Apply RC to the blade and let dry.

mjamja wrote: If the rubber is still on the blade (and you just want to reglue because of a loose section) try putting a piece of painters tape (masking tape) up the handle and onto the rubber.  Have one edge of the tape run right down the middle of the handle.  Cut the tape at the base of the rubber and then remove the rubber.  When you go to reglue put the rubber back on so the two pieces of the tape (one on handle and one on rubber) are correctly aligned.   Having the tape be about 3 in long (1.5 in on handle and 1.5 in on blade) helps alignment better than just a dot or small mark on each since the longer line makes it easier to see that misalignment is happening. If the rubber is already off the blade or going onto another blade it is a little more difficult.  Try to lay out the rubber with the best alignment on the new blade (without glue) and then put on the tape.  It may help to put the tape on the handle and kind of roll it back out of the way as you adjust the rubber so that it can be quickly pressed onto the rubber before it moves out of the proper alignment that you created.   Good luck.   Mark

Not a bad idea!

And fyi, it was a rubber going back onto the same blade and hasn't shrunk at all despite the fact that its M3 and I used RC (which everyone said would shrink it).

This is how I do it:

1. Get a piece of wax paper (from Stop and Shop, Walmart or from your mother) that's larger than your rubber.

2. After the glue has dried, put the wax paper in between the rubber and the blade. The wax paper is semi-transparent, so you can easily align the rubber.

3. When satisfied, hold down the rubber at one end to prevent it from moving, then curl the rubber at the other end away from the blade, then fold the wax paper to expose some wood.


4. Attach the rubber to the exposed wood.

5. Curl up the rubber at the bottom end, remove the wax paper, attach the rest of the rubber.



Usually, I break step 5 into smaller steps. Instead of removing the wax paper completely, I just move it down a little bit, then press the rubber to the just exposed wood, then I just work my way down.


Edited by ppmax - 02/06/2013 at 2:16am

I do it the way just like ppmax, except I usually glue the part close to handle first because it's cpen so I can still control clearance, and I use roller to gentlely press the rest part on the blade, it's better way not to stretch the rubber here and there IMO.

jt99sf wrote: After the initial 2 coats of RC on the sponge, I don't add anymore RC.  Apply RC to the blade and let dry. Place the rubber from the 'top edge' and put onto the blade. Roll slowly towards the handle as not to expand the rubber.

Brainstorm69 wrote: ppmax - very interesting.  Do you glue with water based glue or rubber cement (RC)?  I use RC and I'm wondering if this technique works with RC

I've used the technique with both. The wax paper doesn't stick, but you need to wait for the glue to dry. The paper can be reused again and again. It's a good idea to get the paper from your mother. I bought a roll mainly for regluing, and I will have half of it to pass down to my grandkids.

BTW. When regluing used rubbers, I usually apply glue only to the blade. The rubbers thicken more slowly that way.


Edited by ppmax - 02/06/2013 at 12:01pm

kenneyy88,

I put only one thin layer on the blade.