HOT: Active* forum members generally gain 5% discount at starbike.com store!
Weight Weenies
* FAQ    * Search    * Trending Topics
* Login   * Register
HOME Listings Blog NEW Articles FAQ Contact About




Post new topic Reply to topic  [ 12 posts ] 
Author Message
PostPosted: Wed Jan 28, 2015 6:03 pm 
Offline

Joined: Wed Dec 10, 2014 3:32 pm
Posts: 20
In preparation for installing tubulars for the first time, I've been reading, watching videos, and posting to learn how best to do this. In the past I simply had the bike shop do this, but with my 3rd set of tubular wheels coming, I decided to put on my big boy pants, stop being afraid, and learn to do this myself.

I went to store to buy acetone, mineral spirits, acid brushes, and sand paper to get ready. One of the components to tubulars that looks dreadful is the removal of old crappy glue, thus the mineral spirits that I purchased. I noticed that tires on my TT bike were getting pretty worn, and I foolishly have let them sit deflated. The bond has become very poor along the edges, so I took the tires off. Once off, I noticed that chunks of glue came off, and the surface was very irregular. I decided to I'll attempt to remove ALL of the glue, and start over as if the rims were new. After watching and reading how difficult and time consuming this might be, I figured if I couldn't get ALL of the glue off I could at least get the rims smooth.

Before jumping into the rags and mineral spirits, I thought I might trying heating the surface with a hair dryer. I started at the valve hole, held the hair dryer there for a bit, and then tried to loosen it with my finger. To end this long winded post, I was able to get the glue started, gently pull on the glue while heating the glue as I pulled. It literally came off in 1 long piece all the way around the rim. I went slow, it took about 20 min, but it literally took off 99.9% of the glue.

I'm sure I didn't discover anything new here, but it really surprised me how easy this was. I must add that this was the first set of tires, but they were reglued, so maybe 4 layers of glue were on the rims. I would almost guess that more glue would be easier than less glue, with this method providing the glue was heated sufficiently.

Anyone use or try this method?


Top
 Profile  
 
PostPosted: Wed Jan 28, 2015 6:55 pm 
Offline

Joined: Tue Jul 27, 2010 10:04 am
Posts: 405
New to me - thanks for sharing! Ta.

_________________
Colnago M10 viewtopic.php?f=10&t=91208&hilit=colnago+m10+maob
Simplon Pavo III viewtopic.php?f=10&t=116069"


Top
 Profile  
 
Posted: Wed Jan 28, 2015 6:55 pm 


Top
  
 
PostPosted: Wed Jan 28, 2015 9:25 pm 
Offline

Joined: Wed Dec 10, 2014 3:32 pm
Posts: 20
liam7020 wrote:
New to me - thanks for sharing! Ta.


Your very welcome! Hopefully this works for everyone.


Top
 Profile  
 
PostPosted: Thu Jan 29, 2015 4:08 am 
Offline

Joined: Tue Mar 18, 2014 10:13 pm
Posts: 41
Location: The land of Oz
liam7020 wrote:
New to me - thanks for sharing! Ta.



Ditto........... :)

_________________
Ahhh, coffee & carbon


Top
 Profile  
 
PostPosted: Thu Jan 29, 2015 1:56 pm 
Offline

Joined: Wed Sep 17, 2014 5:29 pm
Posts: 83
electric jug
water boil
smin per wheel
100% glue removed


Top
 Profile  
 
PostPosted: Thu Jan 29, 2015 3:46 pm 
Offline

Joined: Thu Jun 09, 2011 6:51 pm
Posts: 22
grouk wrote:
electric jug
water boil
smin per wheel
100% glue removed


Yeah ?


Top
 Profile  
 
PostPosted: Thu Jan 29, 2015 4:36 pm 
Offline

Joined: Tue May 23, 2006 4:33 am
Posts: 766
Your glue probably came off that way because there was some slight film of something on the rim when you initially glued it up. Otherwise, the glue will soften and you can push most of it off with a spoon or whatever, but it will still have adhesion to the rim. I don't think you said which rim -- if carbon, they are particularly prone to teflon or teflon-like residues that have to be sanded off to be removed (solvents simply don't remove them), but alloy rims also get pernicious lubricants during the extrusion and sometimes after anodizing as part of evening out any variations in color.

A hair dryer definitely helps soften rim cement so various other methods become more effective. Note that a hair dryer plus acetone is a dangerous way to lose your hair, or worse. And note that even a strong hair dryer can overheat a carbon rim (or decals and stickers on an alloy rim) with negative consequences.


Top
 Profile  
 
PostPosted: Thu Jan 29, 2015 5:43 pm 
Offline

Joined: Wed Dec 10, 2014 3:32 pm
Posts: 20
11.4 wrote:
Your glue probably came off that way because there was some slight film of something on the rim when you initially glued it up. Otherwise, the glue will soften and you can push most of it off with a spoon or whatever, but it will still have adhesion to the rim. I don't think you said which rim -- if carbon, they are particularly prone to teflon or teflon-like residues that have to be sanded off to be removed (solvents simply don't remove them), but alloy rims also get pernicious lubricants during the extrusion and sometimes after anodizing as part of evening out any variations in color.

A hair dryer definitely helps soften rim cement so various other methods become more effective. Note that a hair dryer plus acetone is a dangerous way to lose your hair, or worse. And note that even a strong hair dryer can overheat a carbon rim (or decals and stickers on an alloy rim) with negative consequences.


They are carbon rims. Specifically an 808 and Super 9 for my TT bike. I did not do the initial tire install, so I'm not sure if they were sanded. I purchased the acetone as a cleaner before the first layer. I did just do a very light sanding with 150 grit, and then cleaned with acetone. I guess I'll find out in the future if this method works the next time I try to remove all glue.

In watching the video on Zipps site for gluing up tires, they do not mention sanding the rims first. I have 6.7s coming and I see that Enve does recommend doing that.


Top
 Profile  
 
PostPosted: Thu Jan 29, 2015 7:07 pm 
Offline
User avatar

Joined: Sun Nov 07, 2010 9:14 pm
Posts: 1457
Hearing some new (to me) glue removal methods in this thread which is interesting. I'm about to delve into several fresh glue jobs and some removals and reglue myself in prep for the upcoming season. I need to get a heat gun today (for another project), but maybe I'll just experiment a little bit with this to see if it makes removal of mastic one any easier. And the boiling water is a new one to me. What harm could that do? :)

Typically, I strip the rim completely before each reglue. Can't stand a bunch of build up and putting fresh glue over old. So each fresh glue job gets two fresh thin layers of mastic one on the rim, and one layer on the tire base tape. I've found an adhesive stripper I use and it takes me about an hour and half to get a Bora rim completely stripped and looking like new. Without a chemical stripper, I totally get why people are loathe to completely strip a rim clean as it's just too much work by hand with no chemical aid. You do have to be careful to only work on the rim bed and not let it get on the sides of the rim which can quickly peel away the decals you may have or fancy logos painted on your rims.

And yes, 11.4... acetone and flames etc., are really a bad combination although I am due for a haircut today.

@sd5500: I have exactly the same wheels as you on my TT bike. Super 9 and 808. No sanding of the rims. Just a good wipe down with Acetone to clean them before gluing. A super light sanding probably wouldn't hurt anything, and provide a slightly better bonding surface, but only once and when the rims are brand new. Certainly not every time. If ENVE recommends it, I'd go with their recommendations. Never hurts to follow the manufacturers recommendations on those matters. Helps to understand the whys behind any recommendations so you can make your own call on things in the future, rather than just blindly following what others do because they "said that's how to do it".

_________________
My Colnago C59
My Special Colnago EPQ


Top
 Profile  
 
PostPosted: Thu Jan 29, 2015 9:34 pm 
Offline

Joined: Mon Sep 26, 2005 8:06 pm
Posts: 217
My favourite glue removal method: rag plus Tufo rim cleaner plus a well ventilated space.

Best product Tufo makes, IMO.


Top
 Profile  
 
PostPosted: Fri Jan 30, 2015 12:15 am 
Offline

Joined: Thu Dec 18, 2014 6:27 am
Posts: 23
Thanks! I was getting nervous about switching road tires onto my FarSports 'cross wheels for the summer, this makes that process seem a lot less worse.

_________________
Canadian Junior racer and Product Reviewer: Finn Blackburn
Blog: https://finnblackburncycling.wordpress.com/


Top
 Profile  
 
PostPosted: Fri Jan 30, 2015 12:41 am 
Offline

Joined: Wed Dec 10, 2014 3:32 pm
Posts: 20
Thanks for all the help and info guys!


Top
 Profile  
 
Posted: Fri Jan 30, 2015 12:41 am 


Top
  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 12 posts ] 


Who is online

Users browsing this forum: craddlepig and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  

   Similar Topics   Author   Replies   Views   Last post 
There are no new unread posts for this topic. Mavics carbon rims and glue remover, a big no no!!?

in Everything wheels

wheelsONfire

7

236

Sat Jan 24, 2015 6:42 pm

11.4 View the latest post

There are no new unread posts for this topic. Question about Decal Removal

in Road

Trow

3

473

Sun Jul 20, 2014 2:00 am

dogg View the latest post

There are no new unread posts for this topic. Scott Foil 12 - paint removal

in Road

keefzip

2

578

Tue May 20, 2014 2:54 pm

113245 View the latest post

This topic is locked, you cannot edit posts or make further replies. Sticker removal on Cosmic Carbone SLR's: HELP!!

in Road

bikawright

0

590

Mon Mar 10, 2014 7:39 am

bikawright View the latest post

There are no new unread posts for this topic. Bitex front hub bearing removal 2 x 699 hubs

in Everything wheels

fromage

3

415

Wed Apr 02, 2014 6:14 pm

eric View the latest post


It is currently Sat Jan 31, 2015 8:38 am

All times are UTC + 1 hour




Advertising   –  FAQ   –  Contact   –  Convert   –  About

© Weight Weenies 2000-2013
hosted by starbike.com


How to get rid of these ads? Just register!


Powered by phpBB