powder coating is a very durable finish. i completely agree with that statement. i have had many bikes powder coated, and as a wood and metal fabricator, i have had many parts powder coated. A couple of years ago i did a project, where the client requested a clear powdercoat on some steel shelving units, some to be used indoors, and some to be used outdoors. I was suprised to be called back one year later, because surface rust had developed beneath the clear powder coat. this happend to both the indoor and outdoor units. I was perplexed, had the units sandblasted thoroughly cleaned, and re powder coated. i was less suprised when i was called about one year after that, with the same results. no structural damage had occurred, but the client didn't like the look of the rust, so we stripped the units, and painted them a grey color, that looked similar to raw steel. anyhow after that we decided to do some tests. we had several steel parts powder coated in clear, black and white powder coat, and we painted the other versions of these same parts with a clear black and white automotive paint. i put all of the units on a shelf out of mind in the shop. six months later i took the parts down to examine them and noticed, the clear powder coated unit showed some surface rust under the clear powder coat. I decided to strip the powdercoat off of the other black and white units and lo and behold, there was rust underneath the powder coat. I stripped the paint off of the painted units and there was no rust. the powder coated units were more difficult to strip than the painted ones, but in my experience provided less protection from oxidation. it would take many years for a bike frame to rust away even unfinished, but if you are worried about rust, it is my experience the at powder coating isn't as rust protective as wet paint.
On Jun 5, 11:17 am, Sacha <veloban...@gmail.com> wrote: > Here in Minnesota, we consider powder coat the best protection against > extreme cold weather and is more durable. Many folks here will agree with > me. I had my bike powder coated few years ago and I do not see any rust > developed. I do not know what experience you, Jamison had, perhaps the > frameset was not properly sandblasted/stripped off the old paint, and/or > cleaned before it was powder coated. Also it might not have treated with > framesaver or anything therefore the rust from inner tube could have > distributed to the outside of the tubing therefore causing some corrosion. > Too many factors can contribute to the rusting. In my opinion, rust can be > developed anywhere where the steel is. Rust is like a weed, needs to be > contained. Powder coat frameset does not need the wet finish to give it the > protection, though many folks do that for two main reasons: > 1. gives it more glossy/shiny finish > 2. apply decals under the finish coat, because powdercoating is done while is > very hot therefore will melt the decals. > Sacha > > On Jun 5, 2011, at 9:58 AM, jamison brosseau wrote: > > > hey, imron paint is generally durable. with powder coating in my > > experience, corrosion can and does happen under an otherwise normal > > looking finish. with wet paint this doesn't happen, im not sure why > > this is. > > i also lock my bike outside, but i wouldn't really consider powder > > coat, the finish itself is more durable, but as a protective coating > > for steel i don't think its so good. paint also gives a better > > looking finish. > > > On Jun 4, 8:53 pm, Montclair BobbyB <montclairbob...@gmail.com> wrote: > >> Jeff: > > >> Thanks, the paintjob is excellent. I am no paint expert, but my > >> general understanding is that wet paint (like Imron) gives a beautiful > >> finish, and is great for 2-tone paintjobs but can nick and chip... I > >> haven't experienced it yet, but then again I haven't really put these > >> frames to a harsh test yet. > > >> For durability, I understand powder coating to generally be better > >> that wet paint. Please get other opinions. > > >> Good luck! > >> BB > > >> On Jun 4, 4:11 pm, jeffrey kane <jsk_onl...@mac.com> wrote: > > >>> Hey BB, > > >>> Those are both beauties ... tell me (us) ... how durable would you say > >>> the paint is? Will it hold up to street signs and U-Locks, that sort > >>> of thing, or does it nick and scratch easily? And, btw: I'm not saying > >>> nick and scratch easily is a bad thing, I'm just looking for something > >>> durable for NYC style abuse, as I know the original poster is ... > >>> (and I happen to have a house near Toms River). > > >>> On Jun 3, 11:46 pm, Montclair BobbyB <montclairbob...@gmail.com> > >>> wrote: > > >>>> I use The Color Factory in Waretown, NJ (near Toms River). Bruce > >>>> Risley is the owner, and he uses only wet (DuPont Imron) paint. Here > >>>> are photos of 2 of his paintjobs (on my bikes)... I think he does a > >>>> fabulous job, and his prices are very reasonable. > > >>>>http://tinyurl.com/3oy3wxfhttp://tinyurl.com/3uudj96 > > >>>> There are additional pictures on my Flickr site, for more closeup > >>>> detail.... > > >>>> I wouldn't quite put the Color Factory at the level of a Bilenky, but > >>>> Bruce is a real pro nonetheless, and knows his stuff. > > >>>> Good luck! > > >>>> BB > > >>>> On Jun 3, 9:46 pm, jandrews_nyc <jasonaschwa...@gmail.com> wrote: > > >>>>> Hi, > >>>>> I would like to have my green Hillborne frame painted or powder coated > >>>>> and I live in New York City. > >>>>> Does anyone have any suggestions on frame painters who can do a good > >>>>> job and professionally apply decals around NYC? > >>>>> I know Bilenky in Philly does great work ,and that's very close, but > >>>>> just putting the feelers out there to see if there is another shop > >>>>> that comes recommended. > >>>>> The Hillborne is my daily city commuter and it gets locked up outside > >>>>> in Brooklyn, Queens and Manhattan regularly so a powder coat may make > >>>>> more sense. The green that came on the bike is very much scratched > >>>>> off both sides of the top tube from city abuse. I want to protect and > >>>>> beautify it. > > > -- > > You received this message because you are subscribed to the Google Groups > > "RBW Owners Bunch" group. > > To post to this group, send email to rbw-owners-bunch@googlegroups.com. > > To unsubscribe from this group, send email to > > rbw-owners-bunch+unsubscr...@googlegroups.com. > > For more options, visit this group > > athttp://groups.google.com/group/rbw-owners-bunch?hl=en. > > -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To post to this group, send email to rbw-owners-bunch@googlegroups.com. To unsubscribe from this group, send email to rbw-owners-bunch+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en.
