 |  | | | |  | |  |  | Mafac Brake Cover Repair or Replacement |  | |  |  | |
 Posted: Wed Jul 10, 2013 9:00 pm |
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| Paul |
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| Joined: 20 Jul 2012 |
| Posts: 5 |
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Any advice on how to repair a cracked Mafac Racer (mid 70s) rubber brake cover would be appreciated. Rubber cement does not seem to work. Would consider replacement but internet prices are through the roof.
Thanks all. |
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| | | | | | | | | Repairing Rubber Brake Lever Hoods | | | | | |
| Posted: Wed Jul 10, 2013 11:40 pm |
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| verktyg |
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| Joined: 14 Jan 2007 |
| Posts: 2814 |
| Location: SF Bay Area |
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I've used instant glue to do repairs on old dried up brake lever hoods. It's not permanent but will work for a while - until the rubber starts cracking in another place.
I put some of the glue on the metal under the rubber and hold the edges closely together for several minutes (2-4) until the glue sets and use a lot of the stuff (try not to get your fingers stuck to the rubber). 
If you ever want to remove the glued on hoods use acetone to remove the glue from the metal.
These MAFAC hoods turned out looking very good.
The Weinmann hoods below were in bad shape so the results aren't great.
Your results will vary depending on how bad the rubber is.
Also, get some premium quality instant glue such as 3M, Loctite, Permatex, not the cheap variety store stuff.
This Loctite Super Glue ULTRA Control Gel os the best that I've found.
http://www.loctiteproducts.com/super-glue.shtml
3M Super Glues - Use Gel Only:
http://tinyurl.com/m9w8aeh
Permatex Super Glues - use the ULTRA BOND GEL:
http://www.permatex.com/products/product-categories/adhesives-sealants/super-glues |
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Chas.
SF Bay Area, CA USA
==============
1984 Criterium
1969 TdF
1971 TdF
1974 TdF
1984 TdF x 2 Bikes
1970 SC
1971 SC
1972 SC
1984 SC
1984 Team Pro
1985 Professional
1990s Team Replica |
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| | | | | | | | | A possible Mafac fix... | | | | | |
| Posted: Fri Jul 12, 2013 6:04 am |
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| Beegee225 |
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| Joined: 20 May 2011 |
| Posts: 28 |
| Location: Hightstown, NJ |
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I'm thinking of casting my own, (using this stuff-- http://www.smooth-on.com/) and using one of the good ones from the pair I have. They seem to just have edge cracking, but the dryness is there, too. I just have to figure out the mold to hold the metal clip strip in the correct place. But someone suggested that I could easily just "paint" the latex thinly over the existing hood and "rejuvinate" the surface. This might fill in the cracks, but the internal dryness would still be there. Still, it seems less work. I guess one would have to try it on something else to get the product thinned out right. I've used the latex mold-making stuff before, and it's pretty durable, but sunlight and hand oils/sweat will dry out anything...
-Bob G. |
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| Posted: Sat Jul 13, 2013 9:33 pm |
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| Frenchbuilt |
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| Joined: 18 Apr 2007 |
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| Posted: Fri Sep 06, 2013 8:22 am |
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| JamesSmith2013 |
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| Joined: 05 Sep 2013 |
| Posts: 1 |
| Location: Glenwood |
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I agree $7 is really an affordable deal..It may favorably works for all teh vendors and users too..  |
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