Go Back  Bike Forums > Bike Forums > Classic & Vintage
Reload this Page >

Prepping a frame for paint??

Notices
Classic & Vintage This forum is to discuss the many aspects of classic and vintage bicycles, including musclebikes, lightweights, middleweights, hi-wheelers, bone-shakers, safety bikes and much more.

Prepping a frame for paint??

Old 12-09-15, 03:42 PM
  #1  
Senior Member
Thread Starter
 
Join Date: Dec 2011
Location: NE Ohio
Posts: 2,586

Bikes: 1992 Serotta Colorado II,Co-Motion Speedster, Giant Escape Hybrid, 1977 Schwinn Super Le Tour

Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 453 Post(s)
Likes: 0
Liked 112 Times in 85 Posts
Prepping a frame for paint??

I would appreciate hearing from those of you you have refinished a frame. Specifically the steps after sandblasting and before primer. Do you re-sand the frame by hand? If so what grit? I will be using an epoxy primer.
Thanks!!
Tandem Tom is offline  
Old 12-09-15, 04:01 PM
  #2  
Senior Member
 
dksix's Avatar
 
Join Date: Jul 2015
Location: North East Tennessee
Posts: 1,620

Bikes: Basso Luguna, Fuji Nevada

Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quoted: 4261 Post(s)
Likes: 0
Liked 4 Times in 1 Post
After all the cleaning and blowing off with compressed air I like to go over things with a torch. It melts off any lint and fuzzies as well as vaporizes the moisture that forms on the surface. Not enough to heat up the substrate, just enough to dissipate that layer of moisture. Apply finish before the substrate has time to cool below to the ambient temperature allowing moisture for condensate on the surface again.
dksix is offline  
Old 12-09-15, 04:34 PM
  #3  
Senior Member
 
Join Date: Sep 2008
Location: Elwood Indiana
Posts: 7,560

Bikes: they change so much I'm tired of updating this

Mentioned: 168 Post(s)
Tagged: 0 Thread(s)
Quoted: 1211 Post(s)
Liked 1,120 Times in 421 Posts
I sand with 100grit dry paper. I always seem to miss a few little spots from blasting. Also it will shine the metal and any tiny dings will remain dark, a lot easier to find them that way. I've missed a few that were hard to see before sanding. Then clean the frame and then wipe down with a tack cloth.
__________________
Semper fi
sloar is offline  
Old 12-09-15, 05:16 PM
  #4  
Senior Member
 
Jadesfire's Avatar
 
Join Date: Jul 2015
Posts: 1,500

Bikes: '88 Bianchi, '94ish Trek

Mentioned: 43 Post(s)
Tagged: 2 Thread(s)
Quoted: 1085 Post(s)
Liked 128 Times in 58 Posts
In addition to the above, I wiped the whole frame down with alcohol (mineral spirits would work, too) and let air dry before applying the primer. I read on Sheldon's site that this step can help remove any oils that have been transferred from your hands to the frame, which might impact the paint adherence. Possibly this is unnecessary, but it has done no harm to the one frame so far that I have done.
Jadesfire is offline  
Old 12-10-15, 07:24 AM
  #5  
Senior Member
 
OldsCOOL's Avatar
 
Join Date: Jul 2004
Location: northern michigan
Posts: 13,317

Bikes: '77 Colnago Super, '76 Fuji The Finest, '88 Cannondale Criterium, '86 Trek 760, '87 Miyata 712

Mentioned: 19 Post(s)
Tagged: 0 Thread(s)
Quoted: 659 Post(s)
Liked 595 Times in 313 Posts
Originally Posted by Jadesfire
In addition to the above, I wiped the whole frame down with alcohol (mineral spirits would work, too) and let air dry before applying the primer. I read on Sheldon's site that this step can help remove any oils that have been transferred from your hands to the frame, which might impact the paint adherence. Possibly this is unnecessary, but it has done no harm to the one frame so far that I have done.
One caution to add is when using a prep cleaner (my preference is "prep-sol") be sure to wear gloves to prevent skin oils and fingerprinting that always seems to haunt later when spraying.
OldsCOOL is offline  
Old 12-10-15, 03:00 PM
  #6  
Senior Member
Thread Starter
 
Join Date: Dec 2011
Location: NE Ohio
Posts: 2,586

Bikes: 1992 Serotta Colorado II,Co-Motion Speedster, Giant Escape Hybrid, 1977 Schwinn Super Le Tour

Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 453 Post(s)
Likes: 0
Liked 112 Times in 85 Posts
Thanks for the replies! I was able to spray 2 coats of epoxy primer on the frames and forks today. They are hanging in the shop drying. Next step will be picking up the base coat colors on Monday. My sister in law will be helping me as she is the artist in the family. She is also going to line the lugs!
Tandem Tom is offline  
Old 12-10-15, 03:26 PM
  #7  
Aspiring curmudgeon
 
icepick_trotsky's Avatar
 
Join Date: Aug 2014
Location: Saint Louis
Posts: 2,686

Bikes: Guerciotti, Serotta, Gaulzetti

Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Quoted: 111 Post(s)
Likes: 0
Liked 25 Times in 12 Posts
What's the frame, @Tandem Tom?
__________________
"Party on comrades" -- Lenin, probably
icepick_trotsky is offline  
Old 12-10-15, 03:31 PM
  #8  
Senior Member
Thread Starter
 
Join Date: Dec 2011
Location: NE Ohio
Posts: 2,586

Bikes: 1992 Serotta Colorado II,Co-Motion Speedster, Giant Escape Hybrid, 1977 Schwinn Super Le Tour

Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 453 Post(s)
Likes: 0
Liked 112 Times in 85 Posts
One frame is my 1983 Schwinn Super le Tour. I am converting it to a 650b. The second frame is my 1984 Miyata 610. This has become my favorite ride.
Tandem Tom is offline  
Old 12-10-15, 04:49 PM
  #9  
Bad example
 
Join Date: Nov 2015
Location: Seattle and Reims
Posts: 2,925
Mentioned: 33 Post(s)
Tagged: 0 Thread(s)
Quoted: 775 Post(s)
Liked 25 Times in 21 Posts
A timely thread! My son is stripping the old paint off a repaired Trek 620 as I type, and I hope we can get it painted soon!
Aubergine is offline  
Old 12-10-15, 04:56 PM
  #10  
Senior Member
 
thejoshwhite's Avatar
 
Join Date: May 2010
Location: Houston, TX
Posts: 77

Bikes: 1974 Raleigh International, 1985 Fuji Espree

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
What are you using to strip the paint, if you don't my asking?
thejoshwhite is offline  
Old 12-10-15, 05:29 PM
  #11  
Bad example
 
Join Date: Nov 2015
Location: Seattle and Reims
Posts: 2,925
Mentioned: 33 Post(s)
Tagged: 0 Thread(s)
Quoted: 775 Post(s)
Liked 25 Times in 21 Posts
Jasco paint stripper. It works well enough, although it would be nice if it were warmer outside.
Aubergine is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Tandem Tom
Framebuilders
7
07-09-16 09:59 AM
Fumbles22
Bicycle Mechanics
10
03-31-14 04:58 AM
patrickonofre
Bicycle Mechanics
16
08-16-12 07:03 AM
Amesja
Classic & Vintage
13
07-19-12 01:12 PM
pixelharmony
Bicycle Mechanics
14
01-18-12 06:28 AM

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.