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Just looking for different ways to give some corrugated tin a rust effect without airbrushing it on! we are talking galvanized material any suggestions?
-------------------- Robert Beverly Arlington, Texas Posts: 1033 | From: Arlington, Texas | Registered: Jan 2001
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Might try using a piece of sponge and stippling a red/brown paint onto the surface. How large a piece is this, and is it an indoor or outdoor thing?
-------------------- Bill Preston Fly Creek, N.Y. USA Posts: 943 | From: Fly Creek, N.Y. USA | Registered: Jan 2000
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Home Depot might have it. If not there I think plumbers use it for clearing stubborn pipes. Also, any pharmacy or pharmacy supply place.
20 panels ---sounds like too much area to try to airbrush unless they are real small. How about a random pattern with a regular spray gun?
Another thought---rust appears sort of spotty---can you get that effect with either airbrush or spray gun? I think there is a way to make either one "spit" paint in droplets-- I just don't remember how to do it. Either way, I think this is going to take a fair amount of time.
-------------------- Bill Preston Fly Creek, N.Y. USA Posts: 943 | From: Fly Creek, N.Y. USA | Registered: Jan 2000
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FUN JOB! Give it a coat of red oxide primer and then paint it with a mixture of 2 parts burnt sienna to one part burnt umber. Then while paint is still wet throw some portland cement around on it or better yet let it dry and use a paste made of cement adhesive, cement and sand and sponge it randomly on - this gives it the pitted rust formations. Repaint with your base color or something similar. {Or if you would rather you can add some color to the cement mixture.} After it is dry fleck some black paint in and give it a wash of burnt sienna or orange to bring it to the tone you want. You should probably experiment on some scraps first! This gives the most realistic rust effect I have found and you can adjust to get from "slightly rusty" to "eaten away rusty". If you want some heavy raised rust areas you could use bondo before starting.
-------------------- “Did you ever stop to think, and forget to start again?” -Winnie the Pooh & A.A. Milne
Kelly Thorson Kel-T-Grafix 801 Main St. Holdfast, SK S0G 2H0 ktg@sasktel.net Posts: 5496 | From: Penzance, Saskatchewan | Registered: May 2002
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quote: can you get that effect with either airbrush or spray gun? I think there is a way to make either one "spit" paint in droplets
I think you could put you spray gun in the hands of a beginner & be spitting droplets in no time... I seem to even be able to get that effect with an aresol can, but it is never the look I'm after
Robert, be careful with that muratic acid. I know thats a rather obvious warning, but I had left a acid soaked rag that had no odor in a tool bucket in my shop after an install one night, & came in the next day to work. After about 4 hours of breathing the air, still without any odor to warn me, I almost collapsed, & was not feeling quite right for about 2 days after that.
I am going to go ahead and slap some paint around....sure sounds a bit more safe than the acid, as time is runnin short...
especially after taking a wiff of that acid!
I will let ya know...but Kelly's suggestion sounds like the best bet at this point!
I will be taking photos of the completed product...it is a showroom in Denver we are frantically putting together...ha...going to even sneak in a smoke machine...to go thru the piping and dribble out...that should be fun!
Thanks all again!
-------------------- Robert Beverly Arlington, Texas Posts: 1033 | From: Arlington, Texas | Registered: Jan 2001
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Robert, I have some authentic rusted tin, even has multiple creases in it from when the hurricane blew down the barn, come with your truck and load up what you need LOL
-------------------- Mark Perkins Performance Signs & Graphics Eunice, Louisiana "The heart of Cajun Country" Posts: 506 | From: Eunice Louisiana 70535 | Registered: Nov 1998
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have done this effect myself with a few shortcuts (job needed in a big hurry)
1/rubbed over the surface with a scouring pad
2/cleaned it with truck wash (wax n grease remover type thing) 3/painted it with penatrol
4/filled kids water pistles full of water based paint... indian red, brown, black, dirty white (white with a touch of brown) and a muddy green (yellow with a sum black added)
5/squirted the colours quickly so that they ran together and sponged off the excess paint with a couple of cheap car washing sponges
turned out just fine
good luck with your rust
cheers gail
-------------------- Gail & Dave Hervey Bay Qld Australia
gail@roadwarriorproducts.com.au
sumtimes ya just gota! Posts: 794 | From: 552 O'Regans Creek Rd Toogoom Qld 4655 Australia | Registered: Nov 1998
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-------------------- Leaper of Tall buildings.. If you find my posts divisive or otherwise snarky please ignore them. If you do not know how then PM me about it and I will demonstrate. Posts: 5278 | From: Im a nowhere man | Registered: Jul 2001
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Try 2 parts vinegar and one part clorox. It will rust a nail in 10 seconds. It will disolve steel wool in less than a minute. Two household products, that together, are one of the most corrosive things on the planet. Guaranteed to amaze!!!!! I'm still not sure it will go through the galvanization though???
-------------------- "Don't change horses in midstream, unless you spot one with longer legs" bronzeo oti Jack Davis 1410 Main St Joplin, MO 64801 www.imagemakerart.com jack@imagemakerart.com Posts: 1549 | From: Joplin, MO | Registered: Mar 2000
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Muratic acid will eat off the galvanized finish. Then wipe with Clorox and watch the rust develop...then spray with water to stop the rusting. It's a trick they taught is in a set design class I took one summer.
-------------------- Pat Whatley Montgomery, AL (334) 262-7446 office (334) 324-8465 cell Posts: 1306 | From: Wetumpka, AL USA | Registered: Mar 2001
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