painting bare metal

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Old 07-25-05, 05:13 PM
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painting bare metal

i am doing art &craft type work with 1/4 inch wide 18 gauge thickness metal bent into scrolls and welded together. what is the best way to paint this type of thing?i am having problems with it chiping and flaking off particulary on the thin edges. i have tried several types of paint and primer none seems to work. i have thought of powder coating but dont really want to go that route if i dont have to.one of my ideas was to sand or bead blast first hoping that would make a difference. greatfull for any input.
 
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Old 07-25-05, 05:47 PM
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Is the metal clean before you apply primer?
 
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Old 07-25-05, 09:55 PM
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i have used steel wool and then wiped it of with denatured alcohol.wouldnt sand blasting be the best way to get clean and provide a surface for paint to stick to?
 
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Old 07-26-05, 10:56 AM
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Sandblasting always gives a good clean surface for paint. I thought maybe you weren't getting the oils off of the metal before priming but it sounds like you prepped it well. Are you using a solvent based primer?
 
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Old 07-26-05, 04:46 PM
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X-I-M (sticks to anything)

Actually, what type of metal.. is it galvonized? Aluminun and most galvonized metals take bullseye123 well, steel/iron ect. need a oil based metal primer. But again, X-I-M is stick all of the primers.
 
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Old 07-26-05, 05:21 PM
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Originally Posted by noleguy33
X-I-M (sticks to anything)

Actually, what type of metal.. is it galvonized? Aluminun and most galvonized metals take bullseye123 well, steel/iron ect. need a oil based metal primer. But again, X-I-M is stick all of the primers.
well i have cleaned the metal good ,steel sheet metal cut into srips.i have been using spray because i am paintint small things maybe one or two at a time.i have tried cheap and expensive still not much luck. the primer was a rustolium.where do you get the x-i-m primer?does it come in a spray can?
or should i bee using automotive type paint that needs to be mixed and sprayed with a gun?maybe with a hardner?i really like working with the metal but the painting part is getting the best of me
 
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Old 07-26-05, 06:33 PM
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dbblackburn,

I think the problem is with the type of paint you are using.
Rust paints are by nature softer but Rustoleum is one of the softer ones.
I switched to Sico brand rust paints and find that this brand stands up better than Rustoleum or Tremclad and has a better gloss.


If you wanted to take the finish to the next level, a catylized automotive finish applied by spray gun is the toughest.
One drawback though is the requirement for proper ventilation and breathing apparatus.
Catylysts are carcinogenic.
In this type of paint I have used Dupont Duluxe 2 automotive paint which is a regular enamel but has a catylyst available.
This paint is not quite as durable as acylic enamel but is almost half the price if you take the thinner and activator into account.
 
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Old 07-26-05, 10:21 PM
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i was hoping not to have to get into auto motive paint.not all the cans i have tried have been for rust. just thinking that i must need a comercial type paint
some one was telling me you can go to my local auto paint store and they can mix a color and put it in a spray can? might try that. i am also thinking about powder coating it sounds simple?sorta like shake & bake and i can do chicken. LOL. i still think i am going to get a small blaster cabinet no matter wich way i go i think that would be the best way to ensure a proper and clean surface?
 
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Old 07-26-05, 10:52 PM
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dbblackburn,

I really wouldn't bother with the auto touch up paint because it will be auto paint without activator.
This would likely be worse than rust paint for durability.

I didn't think I had experience with powder coatings but I forgot that I had fooled around with making fishing lures awhile back.
The finish I used involved dipping the jig in a powder and baking it in a 400 deg F oven.
The finish was pretty durable on the hooks but I never painted any with rust paint to make a comparison.
Maybe try a fishing tackle store.

Click image:
<img src="http://www.csipaint.com/images/pro-tec-sm.jpg">
Image credit: csipaint.com
 
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Old 07-28-05, 09:11 PM
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Try a DTM acrylic primer/ Direct to metal
 
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Old 07-29-05, 05:43 AM
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Originally Posted by PBTroy
Try a DTM acrylic primer/ Direct to metal
Yep, or the XIM will work also.
 
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