powder coating and lugged steel
#1
Member
Thread Starter
Join Date: Feb 2005
Posts: 31
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
powder coating and lugged steel
Common knowledge says powder coating is too thick and goopy for lugs, but every once in a while I hear someone say that the RIGHT powder coater can masterfully apply a thinner coat and can leave your frame and it's perfect lug shorelines looking good.
Is this true? Anyone have experience with this? Can you recommend someone specifically? Does a convention powder coating really look that awful? Pics of powder coated lugged steel, anyone?
Is this true? Anyone have experience with this? Can you recommend someone specifically? Does a convention powder coating really look that awful? Pics of powder coated lugged steel, anyone?
#2
Randomhead
Join Date: Aug 2008
Location: Happy Valley, Pennsylvania
Posts: 24,396
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
Liked 3,696 Times
in
2,517 Posts
I don't think it's that bad. Just don't do white
#3
Senior Member
Join Date: Mar 2007
Posts: 6,401
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 13 Times
in
13 Posts
These are powdercoated by a place that claims to "specialize" in bikes.
The silver bike came out looking great, although it's starting to rust in a few places despite having been coated less than 2 years ago. The black bike has a very thick powder coat, which would upset me if I'd put any effort into profiling the lugs. And the powder on the blue bike is so thin that the bare steel shows through in a few places, although it never rusted for some reason.
The only real advice I can give is A) if you've put every effort into making lugs perfect, paint it, B) don't worry about powdercoat being so thick as to look ridiculous -- most riders I talk to don't know the difference between a coated and painted frame, C) the metallic colors almost always look better than the plain gloss ones, and D) coated frames are definately more susceptible to rust.
The silver bike came out looking great, although it's starting to rust in a few places despite having been coated less than 2 years ago. The black bike has a very thick powder coat, which would upset me if I'd put any effort into profiling the lugs. And the powder on the blue bike is so thin that the bare steel shows through in a few places, although it never rusted for some reason.
The only real advice I can give is A) if you've put every effort into making lugs perfect, paint it, B) don't worry about powdercoat being so thick as to look ridiculous -- most riders I talk to don't know the difference between a coated and painted frame, C) the metallic colors almost always look better than the plain gloss ones, and D) coated frames are definately more susceptible to rust.
Last edited by Six jours; 02-10-10 at 12:07 AM.
#4
Senior Member
Join Date: Oct 2006
Location: middle canada
Posts: 173
Bikes: trek 8000, GF sugar 1, 1975 schwinn fairlady, 1942 ccm, 1965 ccm retro mod, khe lagger flatland bike...ect..
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 1 Time
in
1 Post
i agree with with six jours on his alphabetical points. And i want to point out that his examples of powder are the exception. Now if you have a bike that needs more body work than you want to invest after blasting it, the flow out of powder coating can be very beneficial in making an ok frame look like it has had its body work done. Powder is also more susceptible to rusting underneath the shell it forms, whereas paint shows its rust earlier, and makes remediation more timely and less work.
#6
Member
Thread Starter
Join Date: Feb 2005
Posts: 31
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Thanks for the input!
Six Jours, those pics are really helpful. The silver powder job looks great, but I wouldn't be too happy with the black on my frame... All three powder jobs were done at the same place, huh?
I didn't know about the rust under powder situation, that's something new to consider.
In my particular case, I'm looking to have a frame I build at a framebuilding course painted. I've spent a pretty ridiculous amount of time thinning the lugs just right, though I'm now noticing my shorelines are not absolutely perfect everywhere...
Anyway, I want this bike to look it's best, but I also plan on really using it and that includes locking it to a pole a few times a week - I'm afraid paint won't stand up to that kind of abuse like I'd hope. It seems like powder can be a toss-up as far as thickness goes... Which is worse, possibly goopy lugs and less resistance to rust, or lots of dings?
Six Jours, those pics are really helpful. The silver powder job looks great, but I wouldn't be too happy with the black on my frame... All three powder jobs were done at the same place, huh?
I didn't know about the rust under powder situation, that's something new to consider.
In my particular case, I'm looking to have a frame I build at a framebuilding course painted. I've spent a pretty ridiculous amount of time thinning the lugs just right, though I'm now noticing my shorelines are not absolutely perfect everywhere...
Anyway, I want this bike to look it's best, but I also plan on really using it and that includes locking it to a pole a few times a week - I'm afraid paint won't stand up to that kind of abuse like I'd hope. It seems like powder can be a toss-up as far as thickness goes... Which is worse, possibly goopy lugs and less resistance to rust, or lots of dings?
#7
Senior Member
Join Date: Mar 2007
Posts: 6,401
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 13 Times
in
13 Posts
Yeah, a place in SoCal. Big place, probably each frame was done by a different person.
Powder can be a useful mistake hider. A great painter can make an average frame look really good too, though.
I'm at the point where I use powder for everything but my most "special" frames. And frankly, I almost hate to ride those special bikes because I've got so much invested in the paint. Powder can be very liberating in that sense. And if you end up getting bored with the color, or putting some dings into it, or even deciding that you want that braze-on in a slightly different place, it's no more than a hundred bucks out of pocket.
Powder can be a useful mistake hider. A great painter can make an average frame look really good too, though.
I'm at the point where I use powder for everything but my most "special" frames. And frankly, I almost hate to ride those special bikes because I've got so much invested in the paint. Powder can be very liberating in that sense. And if you end up getting bored with the color, or putting some dings into it, or even deciding that you want that braze-on in a slightly different place, it's no more than a hundred bucks out of pocket.
#8
weirdo
Join Date: Jan 2008
Location: Reno, NV
Posts: 1,962
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 3 Times
in
3 Posts
How`s that? Do you have so many done at the same place that they redo a whole frame for you on the cheap, or can they reshoot just the area that you worked on? If you wanted to, say move a bridge or add pump pegs or some such, could you spot strip the area easilly without any special equipment or hard to mess with chemicals? Just curious.
#9
Senior Member
Join Date: Mar 2007
Posts: 6,401
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 13 Times
in
13 Posts
Most places that I am familiar with charge less than $100 to powdercoat a frame and fork. I've never heard of recoating just one area and kind of doubt it works.
#11
Senior Member
Join Date: Sep 2007
Posts: 2,454
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Likes: 0
Liked 6 Times
in
6 Posts
If you want to see what's possible with powder check these folks:
https://www.spectrumpowderworks.com/spectrumindex.php
Abso-frigging-lutely AMAZING!
SP
Bend, OR
https://www.spectrumpowderworks.com/spectrumindex.php
Abso-frigging-lutely AMAZING!
SP
Bend, OR
#13
Senior Member
i've had two frames powdercoated by the same one-man operation outside of boston: one in french blue, another in black. the quality of the blue powdercoat surpassed all my expectations-- the lug shorelines weren't softened at all, and the color came out very consistent throughout-- no bare patches. the black frame came out very thick, to the point where it appeared "dipped". i was worried because the lugs appeared to almost blend into the tubing, and after expressing my dismay about the thickness, he explained that dark colors always do that with powdercoating, and that lighter colors go on thinner. he also explained that it's essential to do a two-step powdercoating process, whereby a primer coat is first applied, and the color coat is then applied while the primer coat is still warm and tacky. he explained that most of the cheaper powdercoaters skip the primer step, which causes the color coat to more readily lift from the metal, allowing rust to form.
as it turned out, i was able to hand paint the lug shorelines, and i'm actually quite happy with the details and how the black frame turned out in the end. each powdercoating job me $96 including all paint stripping and media blasting. the latter two alone were worth the money.
and to follow up on six jours' comment about powder making a rough frame look nice, this is exactly what i'm shooting for with my next frame, a french lugged reynolds frame with absolutely horrendous lugwork and brazing. my hope is that the powder fills in all the gaps and irregularities and smooths things out a bit.
as it turned out, i was able to hand paint the lug shorelines, and i'm actually quite happy with the details and how the black frame turned out in the end. each powdercoating job me $96 including all paint stripping and media blasting. the latter two alone were worth the money.
and to follow up on six jours' comment about powder making a rough frame look nice, this is exactly what i'm shooting for with my next frame, a french lugged reynolds frame with absolutely horrendous lugwork and brazing. my hope is that the powder fills in all the gaps and irregularities and smooths things out a bit.
Likes For southpawboston:
#14
Senior Member
Join Date: Mar 2007
Posts: 6,401
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 13 Times
in
13 Posts
"...he explained that dark colors always do that with powdercoating, and that lighter colors go on thinner..."
Good to know. Matches my experience exactly.
Good to know. Matches my experience exactly.
Likes For Six jours:
#15
1 bike 2 many.
Join Date: Oct 2006
Location: Houston, TX
Posts: 295
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
#16
Senior Member
#17
Slo Spoke Jim
Join Date: Mar 2009
Location: Altamonte Springs, FL
Posts: 2,071
Bikes: 1982 Raleigh road bike & love it
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
i've had two frames powdercoated by the same one-man operation outside of boston: one in french blue, another in black. the quality of the blue powdercoat surpassed all my expectations-- the lug shorelines weren't softened at all, and the color came out very consistent throughout-- no bare patches. the black frame came out very thick, to the point where it appeared "dipped". i was worried because the lugs appeared to almost blend into the tubing, and after expressing my dismay about the thickness, he explained that dark colors always do that with powdercoating, and that lighter colors go on thinner. he also explained that it's essential to do a two-step powdercoating process, whereby a primer coat is first applied, and the color coat is then applied while the primer coat is still warm and tacky. he explained that most of the cheaper powdercoaters skip the primer step, which causes the color coat to more readily lift from the metal, allowing rust to form.
as it turned out, i was able to hand paint the lug shorelines, and i'm actually quite happy with the details and how the black frame turned out in the end. each powdercoating job me $96 including all paint stripping and media blasting. the latter two alone were worth the money.
and to follow up on six jours' comment about powder making a rough frame look nice, this is exactly what i'm shooting for with my next frame, a french lugged reynolds frame with absolutely horrendous lugwork and brazing. my hope is that the powder fills in all the gaps and irregularities and smooths things out a bit.
as it turned out, i was able to hand paint the lug shorelines, and i'm actually quite happy with the details and how the black frame turned out in the end. each powdercoating job me $96 including all paint stripping and media blasting. the latter two alone were worth the money.
and to follow up on six jours' comment about powder making a rough frame look nice, this is exactly what i'm shooting for with my next frame, a french lugged reynolds frame with absolutely horrendous lugwork and brazing. my hope is that the powder fills in all the gaps and irregularities and smooths things out a bit.