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Advice for adhesive to bond aluminum cable guides to aluminum top tube

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Advice for adhesive to bond aluminum cable guides to aluminum top tube

Old 03-13-21, 09:08 PM
  #26  
jackbombay
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Originally Posted by Bad Lag View Post
Precisely!
This will likely require a file or sand paper and a deft hand.
Wrong tools for the job IMO, nearly impossible to get sandpaper or a file in there without removing paint, leaving paint intact here is critical IMO.

With a dremel and a small grinding wheel you can remove some aluminum and without touching the ridge of paint around the attachment point of the housing guide, by doing this you also create a small void between the guide and the frame that can hold some JB weld, place the JB weld, then hold it in place with your finger while you wipe away the excess from all sides, then wipe away excess agin with rubbing alcohol on paper towel (it dissolves wet epoxy) then use masking tape to hold it in place, zero visible glue line when finished and far more strength than actually required to hold it in place.
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Old 03-14-21, 11:08 AM
  #27  
Bad Lag
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Originally Posted by jackbombay View Post
Wrong tools for the job IMO, nearly impossible to get sandpaper or a file in there without removing paint, leaving paint intact here is critical IMO.

With a dremel and a small grinding wheel you can remove some aluminum and without touching the ridge of paint around the attachment point of the housing guide, by doing this you also create a small void between the guide and the frame that can hold some JB weld, place the JB weld, then hold it in place with your finger while you wipe away the excess from all sides, then wipe away excess agin with rubbing alcohol on paper towel (it dissolves wet epoxy) then use masking tape to hold it in place, zero visible glue line when finished and far more strength than actually required to hold it in place.
Different tools, different methods of work, different skills, same process both with the same objective. The key, IMO, is to use what you are familiar with, what you have some skill with and can control.
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Old 03-14-21, 05:26 PM
  #28  
jackbombay
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Originally Posted by Bad Lag View Post
Different tools, different methods of work, different skills...
I'm not sure you see what needs to happen here, there is a well of raised paint around where the cable guide used to be attached to the frame, the aluminum that needs to be sanded is in a recess, you cannot get to it with a file, you could fold sandpaper and use the corner of it to get to the bottom of the reces, but you'll never remove any appreciable amount of aluminum which needs to happen as its contaminated with silicone. Here is a drawing of what the thread starter is looking at to clarify,



A dremel with a tiny grinding wheel is far and away the best way to deal with this.
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