Advertise on Bikeforums.net



User Tag List

Results 1 to 11 of 11

Thread: Chrome

  1. #1
    Member
    Join Date
    Mar 2008
    Posts
    31
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Chrome

    I'm not sure where this thread belongs so here goes. I'm thinking about re painting my steel marinoni. My right chainstay, rear droupouts and front deraileur braze on appear to be chromed. Does anyone know if it's actual chrome or just chrome paint. Does sandblasting damage chrome?

  2. #2
    Senior Member onbike 1939's Avatar
    Join Date
    Dec 2004
    Location
    Fife Scotland
    My Bikes
    Airnimal Chameleon; Ellis Briggs; Moulton TSR27
    Posts
    1,885
    Mentioned
    5 Post(s)
    Tagged
    0 Thread(s)
    It's most likely to be chrome and, yes, sandblasting will damage chrome. However , this can be avoided by masking the chrome parts before sand blasting.

  3. #3
    Senior Member
    Join Date
    Sep 2007
    Posts
    1,151
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Really curious... how does one exactly "mask" parts and don't want to be sandblasted?

  4. #4
    Senior Member onbike 1939's Avatar
    Join Date
    Dec 2004
    Location
    Fife Scotland
    My Bikes
    Airnimal Chameleon; Ellis Briggs; Moulton TSR27
    Posts
    1,885
    Mentioned
    5 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by jsmithepa View Post
    Really curious... how does one exactly "mask" parts and don't want to be sandblasted?

    Masking tape is used to cover the part that should not be sandblasted. Some frames are totally chromed then masking tape is used before the frame is painted. Some interesting effects can be created.
    This is my Thorn Nemesis with what is called a "cue handle" effect.

    http://i22.photobucket.com/albums/b3...reducednem.jpg

  5. #5
    Senior Member
    Join Date
    Aug 2006
    Posts
    998
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by onbike 1939 View Post
    Masking tape is used to cover the part that should not be sandblasted. Some frames are totally chromed then masking tape is used before the frame is painted. Some interesting effects can be created.
    This is my Thorn Nemesis with what is called a "cue handle" effect.

    http://i22.photobucket.com/albums/b3...reducednem.jpg
    I like the custom job on that bike. Its very well done.

  6. #6
    Older than dirt CCrew's Avatar
    Join Date
    May 2008
    Location
    Winchester, VA
    My Bikes
    Too darn many.. latest count is 11
    Posts
    5,345
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by onbike 1939 View Post
    Masking tape is used to cover the part that should not be sandblasted. Some frames are totally chromed then masking tape is used before the frame is painted. Some interesting effects can be created.
    This is my Thorn Nemesis with what is called a "cue handle" effect.

    http://i22.photobucket.com/albums/b3...reducednem.jpg
    Actually sandblast media will destroy masking tape. Dad owned a machine shop, they always used duct tape.

    -R

  7. #7
    Just a geek tdister's Avatar
    Join Date
    May 2007
    Location
    NorCal
    My Bikes
    LHT, Pacer
    Posts
    537
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Use masking tape first, then put the duct tape over it. The duct tape is tough enough to survive the blasting, masking tape underneath helps you get it off the frame MUCH easier. There are special tapes for this use though.

    I believe most people are recommending other forms of media blasting, like plastic and walnut instead of sand these days.

    If the whole thing is chrome under paint, make sure you read up and/or find someone experienced with getting it to stick well.
    Surly LHT complete, Surly Pacer Complete, '94 Marin Muirwoods....and a couple others

  8. #8
    Member
    Join Date
    Mar 2008
    Posts
    31
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Thanks for the info guys. I think I'll go with a paintshop that uses chemical solvents to strip paint.

  9. #9
    Junior Member
    Join Date
    Jul 2008
    Location
    rural Southwest Washington State
    My Bikes
    riding an 83 Raleigh Grand Prix, building a Surly Long Haul Trucker, planning my first frame (650B, fenders, horizontal dropouts)
    Posts
    13
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    chromed frames

    I love the effect on that paint over chrome bike. Very nice.

    I was much taken by the fully chromed French cyclotouring bikes in Jan Heine's book. But a framebuilder at LBS said good chrome is increasingly hard to find. Looking around at cars, they don't use much chrome these days.

    If I want to, is it still possible to get a frame fully chromed?

    Zane

  10. #10
    Senior Member onbike 1939's Avatar
    Join Date
    Dec 2004
    Location
    Fife Scotland
    My Bikes
    Airnimal Chameleon; Ellis Briggs; Moulton TSR27
    Posts
    1,885
    Mentioned
    5 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Zaneth View Post
    I love the effect on that paint over chrome bike. Very nice.

    I was much taken by the fully chromed French cyclotouring bikes in Jan Heine's book. But a framebuilder at LBS said good chrome is increasingly hard to find. Looking around at cars, they don't use much chrome these days.

    If I want to, is it still possible to get a frame fully chromed?

    Zane
    Some framebuilders in the UK will do it I'm sure but I'm not sure about the US. Keep in mind that it does increase the weight of the frame.

  11. #11
    Junior Member
    Join Date
    Jul 2008
    Location
    rural Southwest Washington State
    My Bikes
    riding an 83 Raleigh Grand Prix, building a Surly Long Haul Trucker, planning my first frame (650B, fenders, horizontal dropouts)
    Posts
    13
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    structural integrity

    If you know you'll chrome the frame can you use slightly thinner tubing to compensate? Does the chrome contribute to the strength of the frame at all?

    Anyway, weight's never my primary concern.

    Zane

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •