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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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Repainting old lacquered aluminum panels
Hello,
I want to repaint a few aluminum panels from the 60s. The panels still have their original paint on them, but they are all scratched. They are about 2 x 1 foot each. I have a can of new lacquer of the color I want. How do I prepare the surface properly, considering that the old paint was probably applied professionaly with all sorts of wacky chemicals that are no longer available? I want to keep whatever base is under there so I don't expose the aluminum, and just get that surface ready for the new paint. Also, the look is important, they are very smooth and the the paint looks very flat, no lumps or bumps. The new paint is Sherwin-Williams Omni Pak lacquer. I've checked the site for info. Can't find much, they seem to concentrate on house paint... I just don't know where to start. Sandpaper clogs, machine tools are too aggressive, steel wool, rotary brushes, materials, etc .... it's tough. |
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"Stuff" wrote in message om... Hello, I want to repaint a few aluminum panels from the 60s. The panels still have their original paint on them, but they are all scratched. They are about 2 x 1 foot each. I have a can of new lacquer of the color I want. How do I prepare the surface properly, considering that the old paint was probably applied professionaly with all sorts of wacky chemicals that are no longer available? I want to keep whatever base is under there so I don't expose the aluminum, and just get that surface ready for the new paint. Also, the look is important, they are very smooth and the the paint looks very flat, no lumps or bumps. The new paint is Sherwin-Williams Omni Pak lacquer. I've checked the site for info. Can't find much, they seem to concentrate on house paint... I just don't know where to start. Sandpaper clogs, machine tools are too aggressive, steel wool, rotary brushes, materials, etc .... it's tough. Use stripper to remover the old paint and start fresh, that way the old stuff won't haunt you. If the original paint is enamel and not lacquer it will lift with an application of lacquer. There are one stage urethane paints that are much more durable than lacquer although much nastier in chemical composition. Check with your paint supplier to find out their recomended system for refinishing aluminum. Steve |
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Paint remover or perhaps lacquer thinner, but it'll damage your brain
if you breathe too much of it. Or catch fire... Use the remover... Then, there's Aluminum primer with Zinc Chromate which will allow lacquer to stick. you can get it in spray cans. Is there a Mohawk outlet in your area? One of the industrial suppliers? Home Depot? I find that for some surfaces, a hairdryer or heat gun helps me get a uniform finish that is neither saggy nor orangepeel, and has very few embedded bits of lint / dust... / mark Stuff wrote: Hello, I want to repaint a few aluminum panels from the 60s. The panels still have their original paint on them, but they are all scratched. They are about 2 x 1 foot each. I have a can of new lacquer of the color I want. How do I prepare the surface properly, considering that the old paint was probably applied professionaly with all sorts of wacky chemicals that are no longer available? I want to keep whatever base is under there so I don't expose the aluminum, and just get that surface ready for the new paint. Also, the look is important, they are very smooth and the the paint looks very flat, no lumps or bumps. The new paint is Sherwin-Williams Omni Pak lacquer. I've checked the site for info. Can't find much, they seem to concentrate on house paint... I just don't know where to start. Sandpaper clogs, machine tools are too aggressive, steel wool, rotary brushes, materials, etc .... it's tough. |
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