Just looking for different ways to give some corrugated tin a rust effect without airbrushing it on! we are talking galvanized material any suggestions?
Posted by Terry Whynott (Member # 1622) on :
I'd get ahold of Mike Languein. I'd bet he'd have a few tricks under that top hat! Posted by Michael Boone (Member # 308) on :
use some muratic acid to get rid of the galvanize then spray with salt water...
Posted by Bill Preston (Member # 1314) on :
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?
Posted by Robert Beverly (Member # 1907) on :
Thanks Guys
I knew about the muriatic acid...is that available at home depot?
this is an inside job...and I did think about doing airbrush on it if there wasn't an easier way but i have 20 panels to do.
Posted by Bill Preston (Member # 1314) on :
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.
Posted by Kelly Thorson (Member # 2958) on :
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.
Posted by Doug Allan (Member # 2247) on :
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.
Posted by Alfred Toy (Member # 3844) on :
Use a circular body sander or grinder and abrade the surface, then spray with salt water.
Posted by Robert Beverly (Member # 1907) on :
Well,
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!
Posted by Mark Perkins (Member # 296) on :
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
Posted by Gail & Dave Beattie (Member # 572) on :
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
Posted by Glenn S. Harris (Member # 2190) on :
Seems like you'd have no trouble finding plenty of actuall rusty tin in Texas. Posted by Robert Beverly (Member # 1907) on :
Glen
I would have to agree with you on that...and heck...Mark has a full load for me!.. LOL
but I would probably spend more time protecting and controlling the actual thing as opposed to playing with the finish of it...
as for you Gail...I thought I was creative...boy...yours really hit an all time high in creativity!...and approach!
Posted by Curtis hammond (Member # 2170) on :
Rust effect. \ Paint on some rust colored paint while still tacky apply some sand...
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???
Posted by timi NC (Member # 576) on :
There are several new "rust" faux effect latex paints on the market check your local faux suppliers,...
Posted by Monte Jumper (Member # 1106) on :
sandblast it, wet it,stack it...in two weeks you'll have more rust than you wanted.
Posted by Patrick Whatley (Member # 2008) on :
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.
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