I have a customer that wants some real estate signs done and wants a gray background. What proceedure do you use to paint aluminum? In the past I have just used a scratch pad, cleaned and painted with a spray can. Apparently the thinner in the spray can is to hot and I would get a reaction, lift and "curtling."
Thanks for your help
Posted by KARYN BUSH (Member # 1948) on :
i'd order them from a place like grimco...if you have more than 12...other wise if it were like a 18 x 24 i may cover in gray vinyl if there weren't too many.
i've always been able to roll one shot on aluminum after i go over with a scotch pad.
Posted by Brian Scargill (Member # 2258) on :
Hi Rob, Aluminium MUST be etch primed before painting,the etch primer is available at most paint stockists and come in a grey colour, so I would de- grease the aluminium, etch prime,undercoat and gloss as normal.There is no short cuts in this process if you want the paint to stick correctly.
Posted by roger bailey (Member # 556) on :
clean with Rapid Prep, etch with Zink Chromate primer, paint, just like that!
Roger Posted by Peter Manzolillo (Member # 1062) on :
I usually just scuff with a pad first, prime with Ronan Block-out White, then roll on the enamel color. This gives the enamel something to "grab" onto...
Posted by Peter Manzolillo (Member # 1062) on :
Oh, I just realized I may have misunderstood your question. My reply refers to pre-finished white aluminum, not "raw" silver-colored aluminum.
Posted by Sheila Ferrell (Member # 3741) on :
yeh....it's too much trouble to deal with unfinished aluminum when for less than the cost of all that cleanin' an' primin' you can get it with a baked-on finish that only needs scuffin' an' rollin'. On small jobs tho', if I've only got just a few...mabey less than 10, I use a "Preval" airless sprayer if I need to custom mix any colour, an' use anything from Oneshot to automotive paints, an' even do fades without draggin' out the compressor an' all... Posted by Bill Diaz (Member # 2549) on :
Use pre-painted aluminum. Raw aluminum needs to be etched, have a conversion coating, then primed and painted--whey! Pre-painted aluminum which is probably more readily available just needs to be scuffed with scotch-brite. I use the red pads, available from auto supply stores. Then clean off the dust with rubbing alcohol (kills static) and roll on 1 Shot.
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