Go Back  Bike Forums > Bike Forums > Bicycle Mechanics
Reload this Page >

Painting My Bike, I Have Some Questions

Notices
Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

Painting My Bike, I Have Some Questions

Old 02-22-22, 02:57 PM
  #1  
Buzzkill53120
Junior Member
Thread Starter
 
Join Date: Jul 2017
Location: SE Wisconsin
Posts: 110

Bikes: Trek X-Caliber (2020), Trek Trek Madone 5.1 (2011), Trek 1400 (1991)

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 39 Post(s)
Liked 57 Times in 25 Posts
Painting My Bike, I Have Some Questions

I'm painting my 2011 Trek Madone and I'm looking for advice on how to proceed with masking and paint.
I'm planning to use spray cans; a 2K primer followed by an acrylic color coats then finished with a 2K clearcoat. Nothing fancy. I'm sanding the frame done to bare CF, but I have questions on how to attack certain areas that can't be easily sanded; such as the areas where; 1.) BB cable guide is mounted, 2.) DuoTrap mounting, and 3.) rear dropouts.
For areas 1 and 2 I'm looking at sanding around the perimeter of the feature and masking off the areas not visible. For the aluminum dropouts I'm debating to sand them dome as well as can and paint -OR- mask them off completely and leave as bare aluminum.
My question is: will masking these areas off increase the probability of chipping of the new paint near the masked or am I better off sanding it down the best I can to have a continuous coat. I'm nervous especially around the dropouts that the primer may not adhere well, causing crinkling.
I thought about sanding the problem areas best I can, and then primer them first to see if there will be a problem first. I thought having just the dropouts media blasted. I don't know anybody who can do this for me.


Bottom Bracket

DuoTrap

Dropout

Dropout
Buzzkill53120 is offline  
Old 02-22-22, 03:13 PM
  #2  
CliffordK
Senior Member
 
CliffordK's Avatar
 
Join Date: Nov 2014
Location: Eugene, Oregon, USA
Posts: 27,273
Mentioned: 216 Post(s)
Tagged: 0 Thread(s)
Quoted: 17006 Post(s)
Liked 3,852 Times in 2,855 Posts
Have you tried something like a Dremel Wire Brush?



Make sure your tight spots are grease free.
CliffordK is offline  
Old 02-22-22, 05:38 PM
  #3  
FastJake
Constant tinkerer
 
FastJake's Avatar
 
Join Date: May 2010
Location: Wisconsin
Posts: 7,953
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 184 Post(s)
Liked 89 Times in 74 Posts
You know that you don't actually have to sand all the paint off, right? You could've just scuffed it up and painted over the original paint.
FastJake is offline  
Likes For FastJake:
Old 02-22-22, 05:52 PM
  #4  
hayden52
Junior Member
 
Join Date: Oct 2011
Location: Dallas, TX
Posts: 94
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 13 Post(s)
Likes: 0
Liked 27 Times in 14 Posts
I would mask the areas where there will be contact with something else (screw holes, dropouts) and the areas where you can't sand all of the paint off, just sand the transition so its smooth and paint over it. Don't paint the dropouts, the paint will just come off the first (or second) time you put your wheel(s) on.
hayden52 is offline  
Old 02-23-22, 05:58 PM
  #5  
Buzzkill53120
Junior Member
Thread Starter
 
Join Date: Jul 2017
Location: SE Wisconsin
Posts: 110

Bikes: Trek X-Caliber (2020), Trek Trek Madone 5.1 (2011), Trek 1400 (1991)

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 39 Post(s)
Liked 57 Times in 25 Posts
Yeah I roughed up the the frame sections other than the dropouts. I did try using a dremel around the crevices in the dropouts, I think it’ll all work out. I was just a little nervous with the prep, thanks to everyone who commented.
Buzzkill53120 is offline  
Old 02-24-22, 06:10 AM
  #6  
BTinNYC
...
 
Join Date: Oct 2021
Location: Whitestone and Rensselaerville, New York
Posts: 731

Bikes: Bicycles? Yup.

Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 213 Post(s)
Liked 655 Times in 331 Posts
The 2K primer is excellent, sprays very evenly and has great adhesion. I think you're all set.
BTinNYC is offline  

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell or Share My Personal Information -

Copyright © 2023 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.