Hi, I am trying to come up with some way to prep white metal blanks, for painting w/ one shot of different color. What has happened to me in the past is when I peal tranfer tape or mask some lift off occurs. I know about prepsol and I should order some, but right now the customer is watching the computer screen with me, and he needs them in a half an hour. Help. sunny
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Posted by Pierre St.Marie (Member # 1462) on :
The only way we've repainted white metal blanks is by thorough scuffing with "Scotchbrite", available at auto parts/paints stores. Otherwise use a fine sandpaper. You have to break the surface or your new paint won't bond. hope this helps........ :^)
------------------ St.Marie Graphics & Makin' Tracks Sound Studio Kalispell, Montana Mkntraks@digisys.net Carving America into a better shape!
Posted by sunny (Member # 571) on :
Pierre, Thank You I will try it for sure. sunny
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Posted by Ian Wilson (Member # 177) on :
i do all my white blanks either colour bond known as sign white or have them powdercoated my guy usually turn them around in a couple of hours ready to go
------------------ Ian Wilson Signmaker Toowoomba City Council Cnr Anzac Ave & Stephen st Toowoomba Queensland Australia may all your toubles be little ones The man that never make a mistake never makes anything
Posted by Dave Grundy (Member # 103) on :
Sunny...Prepsol is a good idea but it won't help much with the bonding problem. Prepsol is a wax and silicone remover that is used to remove those impurities prior to spraying. I'd do as Pierre suggests, then blow/wipe off the sanding dust and then wipe with prepsol, following the directions on the can. Apply wet and wipe dry with a clean cloth. Follow up with a wipe with a tack rag to remove any lint left by the prepsol rags.
------------------ Dave Grundy shop#340 AKA "applicator" on mIRC "stickin' sticky stuff to valuable vessels and vehicles!" in Granton, Ontario, Canada 1-519-225-2634 dave.grundy@odyssey.on.ca www.odyssey.on.ca/~dave.grundy "A PROUD $ supporter of the website"
Posted by Bob Burns (Member # 268) on :
I do ALL backgrounds on my blanks with vinyl. No cleanup.....no mess....no spray!
------------------ Bob Burns Bob Burns Signs LETTERCRAFT SIGN SYSTEMS www.lettercraft.com 1619 Oregon Ave. Prescott, Az 86305 1-877-778-5879
Posted by Pierre St.Marie (Member # 1462) on :
So do we when we can.......but......if your customer's color selection isn't on the film chart????????? :^)
------------------ St.Marie Graphics & Makin' Tracks Sound Studio Kalispell, Montana Mkntraks@digisys.net Carving America into a better shape!
Posted by Bill Biggs (Member # 18) on :
If you are roller coating them, usually enamel, then everything usually will adhere with just a laquer thinner wipe down, except black. I usually scotchbrite them to be safe, and use a little japan drier in my paint, if I need to use before 2 days Bill
------------------ Bill & Barbara Biggs Art's Sign Service, Inc. Clute, Texas, USA Home of The Great Texas Mosquito Festival Proud Supporter of the Letterheads Website MailTo:twobees@tgn.net
Posted by sunny (Member # 571) on :
thanks for all the input. sunny
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Posted by Kent Smith (Member # 251) on :
After sanding, wipe with Presol or High Temp Reducer and wipe dry in one direction only, using clean surface of the cloth each time to pick up contaminants and not redeposit them. Solvents alone will not break the surface of either baked or powder coated surfaces. The polyester surfaces are the toughest for adhesion so thorough sanding or scotchbrite-ing is critical.
------------------ Kent Smith Smith Sign Studio Greeley, Colorado, USA oldgilt@aol.com
Posted by Santo (Member # 411) on :
A local supplier (100 miles) has mill finish metal sheets. At least it's a start on bare metal.
