Framebuilders - Frame painting: The Basics for a DIYer?

Bikeforums.net is a forum about nothing but bikes. Our community can help you find information about hard-to-find and localized information like bicycle tours, specialties like where in your area to have your recumbent bike serviced, or what are the best bicycle tires and seats for the activities you use your bike for.
Scriffer
09-09-08, 12:46 PM
Hi All,
I picked up an old lugged steel Schwinn frame not long ago with the intent of just cleaning the components and converting it to a beater of a fixie. Naturally, things snowballed, and now I'm in the process of hand-sanding it with the intent of painting it and making it a cruiser to take to football tailgates.
I figure I've come this far, so I'd like to keep the do-it-yourself factor going. The problem is that I have NO painting equipment, and I'm on a budget. My idea is a solid color frame with white lugs and a couple stripes. Pretty basic, so it may not be terribly expensive to have a shop do it.
My main questions are:
1) What kind of paint works best?
1a) Where is best to get it?
2) What's the best way to apply the paint?
Reading the threads, it doesn't look like there is a lot of love for rattlecan paints, but if I go the route of having an automotive shop put auto paint in rattlecans, will that do the trick? The frame had a decent amount of surface rust but minimal pitting, so I'd like to be careful about rust protection as well.
I won't outright reject the idea of picking up an airbrush, but that would get expensive pretty quick.
Thanks,
Ben
Mr Danw
09-09-08, 04:06 PM
Krylon. It dries pretty hard if you do not apply the coats too thick.
Fissile
09-15-08, 05:57 PM
Bike manufacturers use catalyzed auto paints. You can buy catalyzed auto paints at an auto body supply house -- not an auto parts store. No offense to you, but catalyzed paints should not be handled by noobs. The uncured stuff is highly toxic. My advice is take your frame to an auto body shop, or a motorcycle custom shop. See if someone there will paint your frame. Expect to pay $100.
sstorkel
09-15-08, 07:25 PM
Expect to pay $100.
I doubt you'll be able to find someone who will do a quality paint job for only $100. I would expect to pay $200 or more for a quality single-color job with primer and clear.
" No offense to you, but catalyzed paints should not be handled by noobs."
The main thing is you need to have a pressurized air source (scuba?). That can be a line from your compressor if it's the oiless type. Of course a noob may shoot a mess... but at least he won't die.
On the price stuff you will pay a lot if the person spraying is a bike painter, and why not. But there are tons of people out there who may do it for way less if they aren't specialized in bikes. You can get a car shot for a few hundred. The problem is that bikes have their unique problems, parts that are hard not to get drippy or areas that shouldn't be painted, so there is a risk going to a part timer.
Fissile
09-15-08, 07:56 PM
I doubt you'll be able to find someone who will do a quality paint job for only $100. I would expect to pay $200 or more for a quality single-color job with primer and clear.
Let's say that you do all the prep work -- remove all the parts and strip to bare metal -- you can get a good deal, if you're not picky about color. Take the bare frame/fork to the body shop, and tell the dude to paint it next time he's painting a car black/blue/white/silver or whatever color it is you want. Once he's set up to paint the car, it'll take him very little time to shoot the bike frame as well. Depending on your area, he may be willing to do it for $100 or so. Of course, you don't get any graphics with a job like that, and any decals you apply will not be protected by clear-coat. You will have a diamond hard paint job that's as durable as the factory original.
Scooper
09-16-08, 04:46 AM
Here's a short tutorial:
http://www.bikeforums.net/showpost.php?p=4516360&postcount=20
Scriffer
09-16-08, 12:22 PM
I appreciate all the responses. I assume the toxic stuff you're talking about are the isocyanates, and I'd definitely like to not kill myself painting up a bike. I read about those, and they can be pretty nasty if you don't know what you're doing...which I don't. :thumb:
I've called a body shop or two, but they haven't been much help. I also got a quote from a frame shop in the area at $400, which I just can't pay when I could get a compressor, sprayer, paint, and some nailers/brad guns thrown in for that much. I will say that the general design and scheme as well as actually doing it myself are more important than a 100% professional-looking bulletproof finish. I'm hoping this is the first of many such projects, so I'll have time to get better as I go.
I'll keep looking, but in the event nothing works out on that end, can yall recommend a paint that would do a passable job and not kill me? I'm planning on using the Rustoleum rattlecan primer in the next couple of days because I know this thing is just waiting to explode in rust.
And thanks for the link, Scooper. I've been going through that some too. Thanks for your service in the military too.
Dr.Deltron
09-16-08, 02:55 PM
I appreciate all the responses.
... I also got a quote from a frame shop in the area at $400, which I just can't pay when I could get a compressor, sprayer, paint, and some nailers/brad guns thrown in for that much.
And thanks for the link, Scooper. I've been going through that some too.
While I agree that $400 seems high to "just paint an old bike", you would have more fun with the compressor, sprayer and the nailguns! ;)
It's the cost of the PAINT that'll getcha!
Because they are packaged for the automotive industry, ie; LOTs of paint to paint ONE car, the minimum amounts are usually quarts. Colors are usually mixed by the body shop using a mixing system. So the store that sells you primer & clear, may not have base coat colors. If they do, they can usually be had in pints.
Let's review;
$400 to get a professional paintjob or...
Spend the following on materials...
PPG primer, catalyst & reducer, in quarts..$100
Pint of basecoat color $40-$135
PPG clear & catalyst, in quarts..$100
Jasco stripper $15
sandpapers $10+
Tape $6
charcoal mask $35
$300+ so far.
and now it's time to get dirty!
First thing you'll notice, Jasco is nasty, but effective, stuff to work with.
Next, you'll spray the first coat of primer & get shiny spots. The primer will not harden.
Likely due to an insufficient rinsing of the Jasco.
Now you get that fixed & re-primered. Then you discover how nuts it is to try and sand the back of a bottom bracket shell, especially if there's a chainstay bridge.
Got it all cleaned & primered with a final, complete primer coat.
You now have less than 24 hours to get the color/clear sprayed to avoid having to scuff the primer.
The first coat of color will go well.
On the 2nd pass, a gnat will land in your metallic blue.
Pick out the body, but forget the wings, they're there!
Persevering, you spray the clear.
Next day when it's all hard, you find the really spiffy crystal drips, handing from the seat cluster or brake bridge. Nothing you can't "fix" with a number 11 Xacto. ;)
and then lets check your timecard....
Aaaah,...37 hours total, not counting the hours of lost sleep, sweating the details.
$100 divided by 37...you got $2 & seventy cents per hour.
So.....$400
DEAL or NO DEAL?:D
Fissile
09-16-08, 03:12 PM
While I agree that $400 seems high to "just paint an old bike", you would have more fun with the compressor, sprayer and the nailguns! ;)
It's the cost of the PAINT that'll getcha!
Because they are packaged for the automotive industry, ie; LOTs of paint to paint ONE car, the minimum amounts are usually quarts. Colors are usually mixed by the body shop using a mixing system. So the store that sells you primer & clear, may not have base coat colors. If they do, they can usually be had in pints.
Let's review;
$400 to get a professional paintjob or...
Spend the following on materials...
PPG primer, catalyst & reducer, in quarts..$100
Pint of basecoat color $40-$135
PPG clear & catalyst, in quarts..$100
Jasco stripper $15
sandpapers $10+
Tape $6
charcoal mask $35
$300+ so far.
and now it's time to get dirty!
First thing you'll notice, Jasco is nasty, but effective, stuff to work with.
Next, you'll spray the first coat of primer & get shiny spots. The primer will not harden.
Likely due to an insufficient rinsing of the Jasco.
Now you get that fixed & re-primered. Then you discover how nuts it is to try and sand the back of a bottom bracket shell, especially if there's a chainstay bridge.
Got it all cleaned & primered with a final, complete primer coat.
You now have less than 24 hours to get the color/clear sprayed to avoid having to scuff the primer.
The first coat of color will go well.
On the 2nd pass, a gnat will land in your metallic blue.
Pick out the body, but forget the wings, they're there!
Persevering, you spray the clear.
Next day when it's all hard, you find the really spiffy crystal drips, handing from the seat cluster or brake bridge. Nothing you can't "fix" with a number 11 Xacto. ;)
and then lets check your timecard....
Aaaah,...37 hours total, not counting the hours of lost sleep, sweating the details.
$100 divided by 37...you got $2 & seventy cents per hour.
So.....$400
DEAL or NO DEAL?:D
Which is why you need to make friends with someone who paints cars for a living -- forget about calling the body shop and talking to the owner. You need to deal with the dude who is actually doing the spraying.
You do all the prep work, and leave the frame/fork with your friend down at the shop. This is where it pays not to be too picky about color. Pick a common auto color -- black, white, silver, metalic blue, whatever. Tell the dude, "The next time you're painting a car fill in the blank color paint the frame/fork. In this case, the insurance company already paid for the paint. All the work setting up the booth/equipment, and mixing the paint was paid for by the insurance company. The only extra work the painter has to do is wipe down the frame/fork with prepSol, hang it on the parts rack and shoot the primer, color and clear. For this, most guys will probably take $100 cash. If the boss asks him what he's doing, and he probably won't, he'll just tell him he's fixing up his kid's bike.
If the painter has to take time just for your project exclusively, it'll be more, a lot more.
Scriffer
09-16-08, 05:48 PM
While I agree that $400 seems high to "just paint an old bike", you would have more fun with the compressor, sprayer and the nailguns!
DEAL or NO DEAL?
SOLD!!!:thumb:
It won't be a prize-winning job if I do it myself, but on the bright side, I get some sweet new tools, and I get to tell people, "Actually, I did that myself."
Dr.Deltron
09-16-08, 06:03 PM
SOLD!!!:thumb:
It'll be a learning experience, but fun enough to merit doing it!
It won't be a prize-winning job if I do it myself, but on the bright side, I get some sweet new tools, and I get to tell people, "Actually, I did that myself."
Then I suggest what fissile said...make friends with the PAINTER, not the owner.
and bring your own pint cans so he/she can set you up with materials on the side.
Remember, the materials ARE pricey, so "tip" accordingly. ;)
Using an HVLP detail gun, it takes about 3 mixed ounces PER coat, for a frame & fork.
More for bigger or detailed frames.
Enjoy!
It's been a life-long obsession for me. And it started with the same reason...
Why pay when I can do it myself?!? :D
sstorkel
09-16-08, 07:08 PM
I also got a quote from a frame shop in the area at $400, which I just can't pay when I could get a compressor, sprayer, paint, and some nailers/brad guns thrown in for that much.
Where? I don't think I could buy a decent HVLP gun for $400, let alone a compressor that would run it and some nail guns. Hint: a cheap pancake compressor won't put out enough air to run an HVLP gun. If you use a conventional spray gun, you'll end up with paint on everything within a 100-yard radius and you'll use a lot more paint...
Anyone know if there are any independent automotive paints stores anymore? Back when I was in high school, I worked for an automotive paint store that was the primary PPG supplier to the majority of independent body shops in the area. This was back in the days when paint was mixed by hand rather than by a computer. In any event, we supplied lots of small shops where the guy picking up the paint was often the painter himself. Dunno if shops like that still exist, but it was a great way to meet guys who were willing to do a little work on the side, especially if they were paid in cash.
When my sister backed her car into our mailbox, I knew the guy who did all the paint and bodywork for the dealership since he'd come in a couple of times a month when the dealership ran short on factory paint. He did all the repairs in his home shop for 1/4th the price that the dealership was going to charge us for his work! He thought the paint job was far from perfect, but I sure couldn't see it...
Lennysody
09-16-08, 07:17 PM
I know this is an old thread but I had to say something here. I'm no veteran to painting bikes but I do know that powdercoating bike frames works real well... basically what happens is they apply the "paint" which is a dry powder, by using electricity which gets the powder to stick to the frame. The powder is then cured which melts it to the frame. It worked real well and I took it to a automotive paint shop and they sandblasted my frame, and painted it real cheap. They sandblased for free and It was like 30 bucks for the paintjob.
Fissile
09-16-08, 07:49 PM
Where? I don't think I could buy a decent HVLP gun for $400, let alone a compressor that would run it and some nail guns. Hint: a cheap pancake compressor won't put out enough air to run an HVLP gun. If you use a conventional spray gun, you'll end up with paint on everything within a 100-yard radius and you'll use a lot more paint... (I know some model builders who get some pretty decent results with this thing http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=91772 I'm going to buy one and give it a try. Hell for $40, if I get 2 or 3 good paint jobs, it more than paid for itself)
Anyone know if there are any independent automotive paints stores anymore? Back when I was in high school, I worked for an automotive paint store that was the primary PPG supplier to the majority of independent body shops in the area. This was back in the days when paint was mixed by hand rather than by a computer. In any event, we supplied lots of small shops where the guy picking up the paint was often the painter himself. Dunno if shops like that still exist, but it was a great way to meet guys who were willing to do a little work on the side, especially if they were paid in cash.(There are a half dozen near where I live. Look under "Auto Body Supply" in the local yellow pages. There are also some reliable online sellers. These folks sell ordinary auto paints http://www.autopaintdirect.com/ These people supply trick paints to the custom-car crowd http://alsacorp.com/index.htm )
My comments are in blue.
Scriffer
09-16-08, 09:07 PM
There are PPG dealers in my area, but I haven't tracked them down yet. That's on the menu for Thursday when I've got some free time. I may give that Harbor Freight thing a whirl. I figure it would be a good way to see if this is something I want to dive into without forking out crazy amounts of cash.
I'm not committed on anything just yet, but I'm just hesitant to drop it off at a shop because I have a fairly specific idea of what I want, even though it's nothing crazy. Fissile, do you think using the AutoPaintDirect paints in the can would do the trick? I'm not going to be entering this into any contests or anything. I'm just looking to get a good looking bike and maybe a few new toys on the side.
Appreciate all the advice.
MN Bianchi
09-16-08, 09:32 PM
What about powder coating? Are there any problem associated with powder coating a bike frame. Is there any danger with the baking process? I had some parts powder coated earlier this year and the powder coater did them for next to nothing because he was running the same color for a bigger job.
calikid2006
09-18-08, 04:17 PM
Anyone know anything about Nason paints (Dupont makes them I believe)? They are cheap, do they work well for bikes?
Lennysody
09-22-08, 10:22 AM
I'm not sure if you're asking a question, but I ride a powdercoated frame even in the winter and I've had no problems no chipping or cracking and like you said it was real cheap.
The local powder guy will do a frame for 60, he charges some incredible amount like 900 for a motorcycle frame, and they are only 2 times bigger, and the fork is extra since in most cases it will be chrome.
Dr.Deltron
09-25-08, 06:09 PM
2) What's the best way to apply the paint?
Ben
Make an "easle" like this to hold the frame & fork.
I start with the frame upside-down and paint from one side, then the other.
Carefully flip the frame and repeat.
The other gizmo is a run-on-the-fork eliminator. Thumb screws hold the fork and one of the elbows, which allows the frork to be held at any angle.
Sigurdd50
09-25-08, 06:49 PM
this place comes hightly recommended
http://www.powdercoatstudio.com/gallery/index1.html
looks like 99 bucks... not incl shipping
the yellow and purple look killer
Muttley
09-26-08, 08:48 AM
Believe it or don't, I have had good experience with the time-honored rattle can. Prep it really well (wet sand it down with progressively finer grades of paper, to maybe 600 grit), use a light primer if you are going to paint light over a previous dark color. Spray with light, even strokes. I have recently found a spray paint by Krylon called Appliance Epoxy which gives a great slick hard finish.
If you want contrasting lugs, mask them off with tape and trim the edges with an exacto knife.
Price: maybe $10.
Also, if you go the powder coat route - remember that set up is the biggest cost of a powder job. I had a few parts coated a while back, they charged me $20 to blast and coat because they were doing a batch the color I wanted anyhow. If they had to set up for some off-the-wall color, they would have charged me $100 more.
Show us some pix when you get it done!
Scriffer
09-27-08, 01:38 PM
I'm pot-committed to painting it myself now; I primed it this morning. I've been taking pics throughout the process that I'll post when it's all done. It's been great learning about all this, and I'm already pleased with the job given that I'm doing the whole thing in my apartment.
Appreciate all the advice.
Muttley
09-29-08, 01:51 PM
Let me get this straight - you're painting (spray-painting, presumably) your frame in an apartment??
What about overspray, not to mention incinerating your brain with the vapors?:twitchy:
Scriffer
09-29-08, 02:11 PM
Valid question.
I should have said AT my apartment. I have an outdoor balcony with a closet, which I've turned into a paint booth by lining it with drop cloths. From a functional perspective, it's worked out great because there's no dust to settle on the frame, and it's still hot here in Texas. I can just close the door for a couple days after painting to let the heat take care of it for awhile.
Ventilation has been fine so far, but I'm going to add in more ventilation via an exhaust fan before I do any more coats, just to be safe. I'm also wearing plenty of eye and breathing protection.
Scriffer
10-02-08, 12:29 PM
Picked up all the paint, respirator, etc. today at lunch from a local PPG store (English Paint on Northwest Highway in Dallas - great guys), and the painting begins tomorrow morning.
Would yall recommend painting the lugs first or doing the tubes first? My gut says to do the lugs first because then I would be masking off so much of the bike. Opinions?
Dr.Deltron
10-04-08, 10:19 AM
Yes, I would do the lugs first.
Once they are dry and you start masking the lugs, bve SURE the tape (blue painters tape) is pressed down really well & into the corner of the lug edge/tube areas.
A PopSicle stick can be used to ensure that the tape is in the corner all the way around the lug.
Then use a new, sharp #11 Xacto blade to carefully cut along the tube/lugedge corner.
Then go back & press down the edges of the remaining tape with the stick again.
Now you should get nice, crisp lug edges.
If not, you can always add some gold pin stripes to clean up the line between colors.;)
Also, post pictures of your "paint booth", as well as the frame!
Good luck & ENJOY! :thumb:
Scriffer
10-04-08, 04:47 PM
All the advice didn't go to waste! Finally got it painted and cleared.
Here's where I started, 80-something Schwinn Traveler frame. Rusted and neglected:
http://i99.photobucket.com/albums/l299/Scriffer/original.jpg
After plenty of sanding and stripping, I had the frame to where it needs to be:
http://i99.photobucket.com/albums/l299/Scriffer/strippedsanded.jpg
Primed:
http://i99.photobucket.com/albums/l299/Scriffer/frameprimed.jpg
http://i99.photobucket.com/albums/l299/Scriffer/forkprimed.jpg
At this point, I mixed the paint from the PPG dealer and set about with the HVLP sprayer I picked up. Amazingly, my budget didn't allow for a decent sprayer, and it wouldn't even move the paint. After a brief freakout, I called a friend, who just happened to have a turbine HVLP set:
http://i99.photobucket.com/albums/l299/Scriffer/CapSprayHPLV.jpg
Dude saved my tail with this one. Would have been $220 of paint wasted. This thing worked like a charm. (Note, I don't have a reference with the super high-end sprayers.)
Masked to paint the lugs white:
http://i99.photobucket.com/albums/l299/Scriffer/MaskedForLugs.jpg
After letting the lugs dry for a few hours (Not enough time. Pics to follow), I masked them off and did the frame in a maroon/burgundy color yesterday afternoon and cleared it this morning. I went to Texas A&M, so I'm calling it the Wrecking Cruiser:
http://i99.photobucket.com/albums/l299/Scriffer/Frame4.jpg
http://i99.photobucket.com/albums/l299/Scriffer/Fork1.jpg
Scriffer
10-04-08, 04:48 PM
Very pleased with the outcome, except for not waiting long enough to mask the lugs. Ended up pulling some paint off, and I had to try and redo it by hand. It didn't turn out well, so I may go back and redo it in the future. I also wasn't very precise with the masking. Not sure if the knife wasn't sharp enough or what, but I also did some hand retouches under the lugs.
http://i99.photobucket.com/albums/l299/Scriffer/HeadTube.jpg
http://i99.photobucket.com/albums/l299/Scriffer/BottomBracket.jpg
http://i99.photobucket.com/albums/l299/Scriffer/ForkLug2.jpg
http://i99.photobucket.com/albums/l299/Scriffer/SeatTubeLug.jpg
And here are some pictures of my "booth."
http://i99.photobucket.com/albums/l299/Scriffer/booth.jpg
http://i99.photobucket.com/albums/l299/Scriffer/BigPicture.jpg
http://i99.photobucket.com/albums/l299/Scriffer/Frame1.jpg
I basically lined the whole closet with drop cloths and relied on the open air circulation to help with ventilation. The support frame is a clothes-rack I pilfered from my parents. I had to take care not to let the chainstays not hit the rack during painting, but other than that, it was great. Also had a good respirator working.
I can't thank y'all enough for all the help over the last few weeks. Lessons learned:
1. Don't piss money away on crappy equipment.
2. Be patient. Jumping the gun on the lugs really cost me on appearance.
3. Be more precise on masking. I was using 3/4" tape and doing a lot of trimming. 1/4" or so would have been much better to get the tight corners.
4. Use chemical stripper from the get-go rather trying to hand-sand the whole thing at the start. Too many blue boogers from that garbage.
5. Try again soon.
Dr.Deltron
10-05-08, 01:09 PM
Very pleased with the outcome.....
Lessons learned:
1. Don't piss money away on crappy equipment.
Couldn't agree more!!:thumb:
2. Be patient. Jumping the gun on the lugs really cost me on appearance.
Good things come to those who wait.:innocent:
3. Be more precise on masking. I was using 3/4" tape and doing a lot of trimming. 1/4" or so would have been much better to get the tight corners.
D'Ooooohh..my bad.
I should have mentioned...just spray the lugs first, NO masking.
Just fade the paint onto the tubes a bit, then (when dry), lightly sand the "fuzzy" edge smooth, THEN mask the lugs.
I lay the tape on the lug, just slightly hanging over the edge. That's when I use the stick* to push the tape down into the corner between lug & tube.
Now cut with new, SHARP #11. It's OK to cut into the white slightly, just don't get down to the primer/tube! I uactually have a special #11 that I use for this. I made a small curve at the tip and keep it sharp with 1000 sandpaper. It's similar to a scalpel, which would probably be ideal, if I could find one.
Then use the stick to push down any loose edges.
Now spray the tube color and be careful NOT to get too much paint along the tape edges.
It's easy to "fill" that corner between the lug & the tube with paint, thus making it too thick to unmask cleanly. Have the scalpel handy so you can cut through the thick paint spots.
And voila! Beautiful lug masking! :p
*I mentioned PopSicle stick, but I use several that I have sanded & shaped to fit different radius's etc.
I clear coat them to make them more durable & smooth.
4. Use chemical stripper from the get-go rather trying to hand-sand the whole thing at the start. Too many blue boogers from that garbage.
Couldn't agree more!!
Except, even hand sanding will not get the rust, so a rust killing treatment is in order before priming.
My weapon of choice? A pessure blaster using #60 sand.
(which happens to come from the beach about a mile from my house.
NO, I don't shovel it myself, the sand company happens to be just down the road!)
The blaster I use holds about 80 lbs of sand and is similar to an airbrush. I can erase rust very carefully this way. Once done, I primer immediately. THEN I can go back and spray some filler on the pitted areas, or use Bondo like stuff.
Now sand out all the uglies with 320, or 220 for the real grinding.
Clean with wax & grease remover.
Final complete primer. Sand with 800 if needed, and re-clean.
Go on to color & clear.
5. Try again soon!
+2!! :thumb:
Thanks for the photo diary! Now make a paint stand like this & you'll be all set! :D
next time just paint the whole thing white, let dry, mask off the lugs and spray color. it'll make your tube color more vibrant and save a hell of a lot of time
coppertop4646
10-11-08, 09:47 PM
You can get a bike frame sand blasted and powder coated for 70-100$ at a place near me (price depends on color)
Scriffer
10-13-08, 03:18 PM
I considered not even masking for the lugs originally; should have gone with my gut. I've been out of town for work for the last week, but when I get back home, I'll see if I can save the lugs. I might just have to start them over from scratch. From more than 5 or so feet, you really can't see the imperfections in the lugs, but I'm going to be riding it, and it'll probably drive me nuts.
How much different would it look if I took the lugs back down to the metal and redid them from scratch using basic automotive rattlecan primer/base/clear? It's not an ideal method, but I'd rather not bum the sprayer off the guy again just because of all the hassle.
Swizz69
10-16-08, 05:11 PM
How much different would it look if I took the lugs back down to the metal and redid them from scratch using basic automotive rattlecan primer/base/clear? It's not an ideal method, but I'd rather not bum the sprayer off the guy again just because of all the hassle.
Hi Scriffer,
Don't beat yerself up about the lugs! Looks like a pretty good job and in using proper spray equipment for the first time - not to mention the complexity of adding another colour, the fact that the job got done is good enough, and a few imperfections gives you something to improve on next time.
I've just resprayed my old mountain bike in plain blue and agree with Muttley that a rattlecan can produce good results. The biggest difference is in the spray pattern from the aerosol nozzle - it isn't a patch on a proper spraygun, but as you aren't respraying a black TransAm bonnet (or hood as you guys say in the US), that doesn't matter half as much as decent preparation and patience.
First job with mine was to get back to bare metal done by stripping off most of the old finish before getting it bead-blasted (the frame was getting scabby with rust. The bead-blasting cost £10 and left it looking like a new frame!) The paint used was Plasti-Kote bought from a local diy store. A 500ml can was enough for 2 coats & 4 cans were used overall:-
* 2 coats of Zinc Primer (good for etching to bare metal. Left overnight to thoroughly dry & just needed a wipe over with a tac-rag before applying the colour coats)
* 4 coats of colour (Gloss Super in pacific blue. 1 coat - left for a couple of hours, then the final 3 coats applied every half hour)
* 2 coats of clear (Gloss Super again. 1st coat applied just over an hour after the colour without any prep, 2nd half an hour later)
Its being left now for a couple of days to fully cure. The times left between coats wasn't scientific btw :lol:
The idea was just to let the paint go off so that the next coat didn't run, and a little longer left before applying the clear so that it sat on top.
The finish? Well chuffed so far (cameras flat so can't post a pic yet) and although not as flash as the metallic purple the frame was originally painted with, the finish looks far deeper - more like this one from Surly http://www.surlybikes.com/karatemonkey.html (i'd love one of their bikes :thumb:).
Ian...
P.S:- A minus point for powdercoating can be that once water gets in via a few stonechips, rust can cause havoc as it can beneath paint - you can't do a localised repair on it though as you can with paint.
Scriffer
10-16-08, 06:09 PM
Looking at it again, I can get away with leaving the lugs at the seat tube and bottom bracket, but the lugs on the head tube really have to be redone. Somehow the paint peeled all the way down to the metal. The lug on the fork looks best of all of them, but I'm afraid if I redo the head tube lugs, the difference will be very noticeable.
Pics forthcoming on the final painting and when I finally get it built up.
Powered by vBulletin® Version 4.1.12 Copyright © 2013 vBulletin Solutions, Inc. All rights reserved.