Frame chroming..
#1
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Frame chroming..
Can I get a bike frame chrome plated? What preparation must be done before chroming?
#3
Environmental restrictions means that chrome plating costs a bunch more than it did decades ago, which really makes it cost-prohibitive for most folks. I remember back in the late 70's/early 80's, Schwinn charged $50 to upgrade from paint to full chrome on their 11.8 Voyageur and 12.2 Super Le Tour models. Those were the days.
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#7
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If existing chrome it must be stripped first, but that's not too much. The polishing is where I have had trouble and had to spend money to get it right. Areas like bottom bracket lugs, as you would imagine, can not be done with a buffer made for a 1957 Chevy bumper. Call around for a shop that knows bicycles (don't want your crown race plated), have them check out your frame and give you a price for the quality you are looking for.
#8
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Just to make sure I understand things... It seems like rechroming an existing chromed frame should be easier than chroming a previously "just painted" frame. Remove the old chrome, polish up the places where previous chrome loss exposed bare steel, then plate the frame? This particularly assumes you're looking to preserve original "manufacturing patina," file marks, lugs not thinned within an inch of their lives, etc.
I ask because my Atala Super Pro frame needs to be redone. It is already fully chromed, but some places (underneath down tube & top tube, chainstays) have suffered some chrome loss. I will need to make sure that's not happening from the inside out, but if not, I'm thinking it should be a bit less work than a frame which has never seen chrome before.
I ask because my Atala Super Pro frame needs to be redone. It is already fully chromed, but some places (underneath down tube & top tube, chainstays) have suffered some chrome loss. I will need to make sure that's not happening from the inside out, but if not, I'm thinking it should be a bit less work than a frame which has never seen chrome before.
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#9
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That Atala is gorgeous. Looks like a Giuseppe Pela build to me. It is going to need lots of prep. Prep that non-bike platers just won't do correctly or at all. That it has been previously polished for chrome will make the job a little easier. A little. Robert Schmidt at Velociao.com. He does the cromovelato as well. English spoken.Very reasonable prices. Chroming will be done in Italy - it will look like Italian chrome when complete. Chrome comes in many flavors and the most perfect job that is non-Italian will not be same.
"Remove the old chrome" is not easy. Can be done with bead blasting, better done with reverse electrolysis. Reverse electrolysis is plain risky - should only be done by those who do it routinely.
"Remove the old chrome" is not easy. Can be done with bead blasting, better done with reverse electrolysis. Reverse electrolysis is plain risky - should only be done by those who do it routinely.
#10
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Franklin Frames shows $1100 for chroming and frame and fork but that might only be a new frame from them.
Rechroming a fork $225 and it just says 'call' for stays and lugs Frames
Rechroming a fork $225 and it just says 'call' for stays and lugs Frames
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#11
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Interesting stuff. Big trucks have a lot of stuff that comes from plating firms.
I had some Ducati Desmo motorcycle pieces plated at Brown's Plating in Paducah, KY in the 80's.
You send it, they may/may not give you an estimate, as you either want it done, or not.(that was the protocol in 1982, I think).
Often, they don't repair damage, but they do the prep (and charge for it). I don't think they'll do the fine sanding, etc that needs to be done on rough metal, though. If I had a frame worthy of it, I'd not hesitate.
Auto body shops once did small items in 5-gal buckets for trim pieces on cars, both in a gold-look plating and chrome-like. Not sure what that was about, but I used to see the buckets, wires coming out of them, to batteries when I visited.
I had some Ducati Desmo motorcycle pieces plated at Brown's Plating in Paducah, KY in the 80's.
You send it, they may/may not give you an estimate, as you either want it done, or not.(that was the protocol in 1982, I think).
Often, they don't repair damage, but they do the prep (and charge for it). I don't think they'll do the fine sanding, etc that needs to be done on rough metal, though. If I had a frame worthy of it, I'd not hesitate.
Auto body shops once did small items in 5-gal buckets for trim pieces on cars, both in a gold-look plating and chrome-like. Not sure what that was about, but I used to see the buckets, wires coming out of them, to batteries when I visited.
#12
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I just had a Giordana fork Chrome plated. $60, and it looks killer. Polished,Copper ,Nickle, and Chromed to a tee.
Of course the guys there know me so they cut me a deal. I plan on chroming the rear triangle and head tube lug area of a frame very soon. I'll post up my findings.
Of course the guys there know me so they cut me a deal. I plan on chroming the rear triangle and head tube lug area of a frame very soon. I'll post up my findings.
#13
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Just to make sure I understand things... It seems like rechroming an existing chromed frame should be easier than chroming a previously "just painted" frame. Remove the old chrome, polish up the places where previous chrome loss exposed bare steel, then plate the frame? This particularly assumes you're looking to preserve original "manufacturing patina," file marks, lugs not thinned within an inch of their lives, etc.
I ask because my Atala Super Pro frame needs to be redone. It is already fully chromed, but some places (underneath down tube & top tube, chainstays) have suffered some chrome loss. I will need to make sure that's not happening from the inside out, but if not, I'm thinking it should be a bit less work than a frame which has never seen chrome before.
I ask because my Atala Super Pro frame needs to be redone. It is already fully chromed, but some places (underneath down tube & top tube, chainstays) have suffered some chrome loss. I will need to make sure that's not happening from the inside out, but if not, I'm thinking it should be a bit less work than a frame which has never seen chrome before.
#14
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Chrome in the UK
In the UK sandblasting and chroming a frame will set you back arond 1200 USD. The sandblasting bit is less than $100. Real chrome on cars isn't allowed any more, owing to the need for crumple zones on the front and rear, so it's gotten really expensive in this part of the world.
#16
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Franklin Frames shows $1100 for chroming and frame and fork but that might only be a new frame from them.
Rechroming a fork $225 and it just says 'call' for stays and lugs Frames
Rechroming a fork $225 and it just says 'call' for stays and lugs Frames

Not sure why I don't have an "after" pic of just the fork (must have grabbed the dunce cap instead of the thinking cap that day). Here's the whole shebang (click, then zoom):
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#17
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Make sure you send it to someone who knows how to properly deal with bikes. If not, they could over-polish and lose lug line definition. There is also a risk of something called "hydrogen embrittlement" that can occur during the chroming process. It weakens steel, which is no big deal for a Chevy bumper, but not something that would be good for a bike frame. Rechroming a chrome fork
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#18
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Just to make sure I understand things... It seems like rechroming an existing chromed frame should be easier than chroming a previously "just painted" frame. Remove the old chrome, polish up the places where previous chrome loss exposed bare steel, then plate the frame? This particularly assumes you're looking to preserve original "manufacturing patina," file marks, lugs not thinned within an inch of their lives, etc.
I ask because my Atala Super Pro frame needs to be redone. It is already fully chromed, but some places (underneath down tube & top tube, chainstays) have suffered some chrome loss. I will need to make sure that's not happening from the inside out, but if not, I'm thinking it should be a bit less work than a frame which has never seen chrome before.
I ask because my Atala Super Pro frame needs to be redone. It is already fully chromed, but some places (underneath down tube & top tube, chainstays) have suffered some chrome loss. I will need to make sure that's not happening from the inside out, but if not, I'm thinking it should be a bit less work than a frame which has never seen chrome before.
Anything that is chromed has to be polished so it looks nearly like chrome, before it's plated. If the part has rust pits, it's usually given a heavy copper plating and then the copper is sanded and polished to eliminate the rust pits. That requires time and money.
#19
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The risk of rechroming a vintage frame is great. The cost is even greater in terms of cash and environmental trauma. Were it me, I would seek an already chromed frame set or complete bike...
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#20
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I've inquired with a plater of which does not have experience with bicycles. Quite the process before final dip (as noted above). Chrome plating a fine bicycle frame is a complete different art and requirement vs. random car parts or other artifacts. Obviously you want to minimize bb threads or the inside of the head tube from chrome, but that's secondary issues.
Prep is crucial in anything, flaws underneath will show through. You have to spend the time in perfect prep before the stages of plating.
Old chrome and pitting requires a near complete peel down to the object. I say object because they chrome plate plastics and metals.
No verification but from what I've only researched on chroming bikes, improper plating and thickness of layering can change the tubing property brittleness and ride characteristics.
Prep is crucial in anything, flaws underneath will show through. You have to spend the time in perfect prep before the stages of plating.
Old chrome and pitting requires a near complete peel down to the object. I say object because they chrome plate plastics and metals.
No verification but from what I've only researched on chroming bikes, improper plating and thickness of layering can change the tubing property brittleness and ride characteristics.
#21
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There are platers in Rhode Island and Connecticut who have plated frames for builders. The Framebuilder's Forum might have more information.
#22
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You can also look here for platers.
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#23
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The process is pretty involved, which is why it's so expensive anymore.
1) solvent de-greasing
2) media blasting (if required)
3) acid pickle / descale / old Cr removal
4) filling of defects / repair
5) cleaning and polishing to eliminate surface flaws
6) further solvent cleaning
7) caustic soap cleaning
8) electrocleaning (also caustic)
9) several rinse cycles
10) CN Cu strike plating (cleans and primes in one step, thanks to the cyanide)
11) rinse (multiple)
12) Cu (acid copper) base plating
13) rinse
14) Acid Ni plating
15) rinse
16) Acid Ni plating
17) rinse
18) Hex Cr or Tri Cr (depends upon what appearance one wants in the Cr plate; Hex is better but the raw materials are toxic)
19) rinse
20) inspect; if flawed; start again from step 3
21) polish
22) package and ship
1) solvent de-greasing
2) media blasting (if required)
3) acid pickle / descale / old Cr removal
4) filling of defects / repair
5) cleaning and polishing to eliminate surface flaws
6) further solvent cleaning
7) caustic soap cleaning
8) electrocleaning (also caustic)
9) several rinse cycles
10) CN Cu strike plating (cleans and primes in one step, thanks to the cyanide)
11) rinse (multiple)
12) Cu (acid copper) base plating
13) rinse
14) Acid Ni plating
15) rinse
16) Acid Ni plating
17) rinse
18) Hex Cr or Tri Cr (depends upon what appearance one wants in the Cr plate; Hex is better but the raw materials are toxic)
19) rinse
20) inspect; if flawed; start again from step 3
21) polish
22) package and ship
#24
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When I worked in a chrome shop (70's), after reverse current alkaline cleaning, there was rinse, then a dip in muriatic acid, then another rinse, then copper, nickel and chrome plating, with rinsing in between each step. Maybe the copper strike works instead of the muriatic acid dip, but I never applied any type of plating without the acid dip and rinse, before the first plating tank, whether it be copper, zinc or cadmium. Also never used more than one nickel plating step. Within nickel, at least you can pull a part out of the tank to check for adequate brilliance, then put it right back in, without a problem. No so with chrome. It's a one shot deal. It either comes out OK, or not.
#25
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Bikes: Schwinn Super Le Tour 12.2, Schwinn World
I have Schwinn super le tour 12.2 in full chrome. Maybe someone knows what the protective layer on frame? Something peels of. Varnish? What i have to do with it to restore?




I'll have to get you over to my place to examine it more closely.