|
I have an itch to do some body work this spring and summer. I have no experience painting but I've read the HVLP high volume low pressure guns are easy to use and relatively inexpensive.
I do have a local guy who does excellent work who repaired and painted my extensively rusty windshield cowl in the past. He quoted $250-300 to prep and
paint 6 large rust bubbles that are forming at each attachment point of the roof rack. (I plan to remove the rack and plug the holes)
For that price I could get myself a beginner gun, primer, paint, and additional supplies. There are other areas like under the taillights (wagon) and a few spots starting on the rockers and also the wheel arches. I'm not looking to achieve showroom results but I figure that whatever I could do myself would be better than dying a rusty death.
Any thoughts or experiences to share?
--
'90 245 285k, '93 945 296k
|
|
-
|
Go to Harbor Freight. They have one gun they usually have on sale that works great for primer, then the sell a real nice set in a case, its just a tad nicer and it works great for base/clear coat. THey also sell some disposable cups that I really like that fit the things, especially good on the primer gun as that stuff has a habit of trying to set up on you.
THose guns will lay down paint beautifully once you get the spray pattern figured out, and make dang sure you spend some good money on a water trap ( they sell some decent ones as well ) water will ruin a pint job faster than anything.
THose HVLP guns are nothing like a rattle can. They dont splatter paint to where you have to go back over and over to fill in . They lay down a fairly thick swath of paint, and if youcan hold your arm steady, you can make steady passes with almost no overlap and get complete coverage, but you cant stop moving or you will drip
I would not recomend single stage. If you make a boo-boo or a bug commits suicide in your new paint ( which they always do ( depending on the humidity, it can be a couple of weeks before you can sand it out and do anything about it. With 2 stage, you can fix it in no time and be shooting clear the next day
Only thing I use single on is small repairs on cars where that is the factory paint
--
-------Robert,'95 960, '93 940t, '90 240 wagon, '94 940SE, '84 240 diesel (she's sick) , '80 245 diesel, '86 740 GLE turbo diesel, '92 Ford F350 diesel dually
|
|
-
|
thanks! I've had my eye on the harbor freight kit.
--
'90 245 285k, '93 945 296k
|
|
-
|
There was a similar post on Turbobricks awhile back that I thought was interesting - perhaps it can be of assistance here as well.
This post dealt specifically with dealing with rust and the products that should be used in dealing with the rust and the subsequent painting over of that rust. In short, it was a system of Evapo-Rust, then Ospho (POR-15 type but easier to work with), then an epoxy primer/sealer (Transtar 2K Rust Inhibitive Epoxy Primer), then putty/primer/paint to finish off the job.
Looks like the "Ospho" might be a much better mousetrap than the well known POR-15 when dealing with spot surface rust. Less steps and much, much cheaper.
Link: http://forums.turbobricks.com/showthread.php?t=199433
|
|
-
|
Lots of learning and reading to be done.
An alternative, go to your local auto paint supply place. You can order up paint of the right color, and they can put it in rattle cans. The blend won't be exact, as there's no hardener this way, but if you're careful, it'll look pretty good.
Note, I've only done this with solid colors. I'm not sure how it'd work with metallics. The folks at the auto paint store should be able to let you know what to expect.
--
-Matt I ♥ my ♂
|
|
-
|
Here are some links from my research. I chose the 4" trim roller method. My '81 was oil based enamel so stayed with that and did one panel at a time. Most important is to experiment on a piece of metal. I used my metal sunroof and probably painted and sanded it 3 or 4 times.
I removed all the trim, sanded and fixed dents and rust. Mineral spirits worked great with the oil based and did not degrade the rollers. Before applying paint I wiped down the surface with acetone. Most important is to get good coverage. You can fix any imperfections by wet sanding and buffing. I found that only necessary for runs.
http://www.neilslade.com/Papers/Painting.html
http://board.moparts.org/ubbthreads/showflat.php?Cat=0&Number=2331682&page=0&fpart=1&vc=1
http://www.instructables.com/id/Paint-Your-Car-With-Rustoleum/
http://www.rickwrench.com/index79master.htm?http://www.rickwrench.com/50dollarpaint.html
http://spraygundepot.com/depotmsdsg2.html
http://www.paintforcars.com/
https://autopaintproonline.com/
http://www.autocolorlibrary.com/
|
|
-
|
thanks for the series of links!
As I've mentioned I'm super green when it comes to bodywork and painting.
So for the paint roller method are you using a matched paint or using an off the shelf auto body acrylic enamel?
A pic of my bronze bomber is in this thread somewhere, looking at the paintforcars.com website it would appear that the bronze metallic might be a close match?
I guess the bottom line is that I shouldn't expect a perfect match? I think that's OK, because a lot of the areas I'd like to fix aren't in the middle of a body panel.
Its areas like rockers, wheel arches, edges of doors, roof rack mounting areas. behind and under trim, around the rear tailights.
Thanks for all the patience, In cases like this I just need it explained to me step by step.
--
'90 245 285k, '93 945 296k
|
|
-
|
I did the whole car so I used an off the shelf color. If you can bring a sample to a paint supplier, a computerized color match is almost indistinguishable.
|
|
-
-
|
Thanks!! how did you do it? I pasted the image url everywhere but couldn't get the pic to show up.
--
'90 245 285k, '93 945 296k
|
|
-
|
When using Photobucket on BB use the html link and not img.
|
|
-
|
Hi Matt,
I ran into similar problems so I opened up a photobucket account & copy their link. I don't know why it's so difficult...
BTW, Your car looks very nice. I am going to try a 4" roller on mine. I can't wait.
|
|
-
|
If it's a beater, foam roller will do for small areas. I usually spray none automotive paint, using a hvlp gun for full body. I just use alkyd exterior house paint for my beater, car paint is expensive, and if the body is not in good shape not worth the cost. you still need to thin the house paint with tulene or other thinner to spray it. Foam rollers degrade using tulene etc, even paint thinned heavily with varsol etc...will start to make the roller fall apart, but you will get a decent area done before the roller starts shedding.
--
Patrick, '68 220 , '53 GMC 4104, '97 VW Transporter.
|
|
-
|
when you said you using and alkyd exterior house paint to touch up the beater how did you go about matching that? Just pry off a chip from a peeling area and get it matched? Is it really that easy? I just want something that matches half way close, will adhere well and can be brushed or foam-rolled on. I'm not doing any whole panels, just touching up edges, cracks and crevices.
My paint code is 400 - Gold Metallic - guess I just wont get the metallic if I go the "house paint" route.
I cant believe I'm even considering this... house paint
Thanks!
--
'90 245 285k, '93 945 296k
|
|
-
|
definately not a beater, but has a few trouble areas. I've been trying to post a picture but not having luck. See "bronze bomber" on the gallery. I just posted it yesterday however the picture is from a few years ago.
--
'90 245 285k, '93 945 296k
|
|
-
|
in that case be forewarned, getting a nice blend/finish can be a challenge with a spray gun. You need to spray either whole panels, or the whole car to get decent results.......practice makes perfect....and the really cheap hvlp guns are not worth it, try to find quality used.
--
Patrick, '68 220 , '53 GMC 4104, '97 VW Transporter.
|
|
-
|
If it's just about getting the car one color, foam trim rollers will do the job. Touch up is easy.
2 coats should do it. A gallon is good for 2 paint jobs. And you can add a clear coat or two for a lasting shine.
I bought a spray gun. Tried it. Too much waste and cleanup. Prefer rollers.
I'm driving a Tremclad green 245. And expect to be doing an '89-245 in Tremclad blue sometime this spring. (I need an empty garage for the paint to dry.)
--
1980 245 Canadian B21A with SU carb, M46 trans, 3:31 dif, in Brampton, Ont.
|
|
-
|
Hi Trev,
How did it came out? Any photos?
|
|
-
|
so are you saying I can go to the autobody supply shop and order up a 1/2 gallon of paint and instead of using a sprayer I can apply the product with a roller?? This is more my style. I guess I was under the impression that the paint was mixed purposely to be sprayed.
I need to face the fact that this is a 23 year old car that has seen 23 salty upper-midwest winters. At the end of the day I'm just postponing the inevitable a few years.
Thanks for all the responses.
--
'90 245 285k, '93 945 296k
|
|
-
|
"I can go to the autobody supply shop and order up a 1/2 gallon of paint"
I haven't used auto paint but know a metal paint like Tremclad rust paint works. Auto paint may dry too fast to allow corrections.
I choose a cloudy (and calm) day so paint doesn't dry so fast that the roller sticks as paint is being applied. It allows the use of the small 4"(?) foam rollers which get into narrow spaces. (And a 1" paint brush for other spots.)
However, I did acquire some industrial paint and have used it on a 84-240. Worked fine but it is a 2 part paint which requires a hardener be mixed in. Too much hardener, it dries too fast. Too little and it may not dry.
--
1980 245 Canadian B21A with SU carb, M46 trans, 3:31 dif, in Brampton, Ont.
|
|
-
|
if you want a decent job you have to go with a color coat and then a clear coat. a two stage process.
i have used inexpensive harborfreight guns with very good results.
prep work is vital and the other thing thats vital is where you paint. falling dust, bugs etc will wreak havoc with your work if you're not careful and plan ahead.
|
|
-
|
Any gun will put paint on an object but I am sure the quality of any gun can make the job easier.
The results you are going to in up with depends of the person understanding the paint products system of mixing and "reading" the paint as it goes down and flows out.
Today's paints or all paints have a required learning curve so buy plenty to practice with on some extra panels and purchase the right drying speed reducer for your weather.
Doing a roof does have the advantage of not getting easily scrutinized and less pressure for matching adjacent panels.
The main purpose a HVLP gun is to put more paint on the car per pass with less overspray out and into the atmosphere. EPA has pretty much made this mandatory in some states for high volume shops.
They are not required for the hobbyist and its a matter of getting use to what tools you have to work with anyway, IMHO.
I will tell you that you need more than one gun to get nice results. You need one for primer which most painters have a beater gun ( a less expensive of either type will do ) for the prep work. Getting the primer down and building up the low spots set the tone for what kind of finish you have in the shine. Prep time is the most important step. Rust stoppers, fillers and primers all have steps to follow and have to be compatible to the paint product to be laid over them.
The newer paint finishes are water based and for beginners have advantages over the other two stage systems so shop around and get plenty of advice from your paint dealers or painting professionals! The more the better!!
The other gun is for color and the clear if going two stage. I myself have not done that much painting and have stuck to single stage paint systems.
Another thought, In some cases a spot or touch up gun is good for tight spots or blemishes too.
Something to look for, if you want a gravity feed gun, get one where the paint cup on top rotates for shooting horizontal or vertical low angles. They also make guns that work with drop in cups so you can swap them out. That keeps the weight down on your wrist and arms and you can make a single catalyst mix bigger if you try to do a large suface. Large volume shops use pressurized buckets that feed only the gun for doing the whole car in the allotted pot life times.
Good luck, you will be a lot wiser on the far end, after doing your first paint job after all it is a trade and art to itself. Be patient!
Phil
|
|
|
|
|