Large Scale Central

Galvanized corrugated roofing

So how does one paint, weather (rust), soda cans for Galvanized corrugated roofing? They have been cooked at 600°, cooled on their own time, and cut into ½” scale ready for Fiskars’ crimper.

Bill

It would depend on what look you are going for as to what paints you use. I prefer Krylon rattle can paint, some folks prefer Rustolium rattle cans.

For rust, various shades of brown and iron oxide could be used, with maybe a light over-spray of black or gray.

For oxidized galvanized steel, that hasn’t rusted yet, a coating of medium gray with an over-spray or light and darker grays would work.

I’m not sure what the source of this roof was as I didn’t build it, but it is aluminum and just weathered naturally to a nice dull silver…

It looks good, but I’d like it to look like rusted steel, so I’ll be weathering it some day.

Hey Bill,

After you crimp them spray them with “Cold Galvanizing” , coupla different brands available that work well. Then you can stain them with acrylics or oils to suit.

Another method that works well is to use board etchent, available from Radio Shack and such places. Really works well to give some great effects. Be advised that it will completely eat up the aluminum if left in to long. The fumes are very bad so use in an outdoor location. This is the method I have used on several projects like the Marion shovel.

Good luck on your project.

Glad to see you building again.

Rick

I have used “Sophisticated Finishes” iron paint with their “Rust Antiquing Solution”. You first paint the iron on, then apply the rust solution wherever you want rust.

I used it on this plastic roof and it turned out nicely - it looks like real metal with real rust now.

I originally bought the solutions at Michael’s Craft Store.

The paint has held up VERY well over the years.

There are many ways to do it. but here is a video I made a couple years ago:

https://www.youtube.com/watch?v=MtWUdfRQkBY

Ty

How I love this forum! Dunnowhatnell I’m doing, ask for help and get all kinds of it.

Rick, good to hear from you. For my first time I’ll steer clear of that hazmat stuff and pursue “Cold Galvanizing”.

Bruce, I just may try both Rick’s idea and yours. Nothing like shadowing a couple of Masters in this business.

Landrel, how malleable were your cut up soda cans since there was no mention of annealing?

Bill

I love the Rustoleum “Cold Galvanizing Compound”. It’s durable and gives a very realistic galvanized appearances. I also use the Sophisticated Finishes “iron” and antiquing solution when I want rusty metal. I always use it over primer, and sometimes over a color coat too depending on what look I’m going for.

I buy .003 thick steel shim stock from McMaster Carr, the same paper roller mentioned above will roll it like the aluminum.

.003 steel is just a stiff as an aluminum can, and it naturally rust. You can use muratic acid and hydrgen peroxide to create imidiate rust,

once it has obtained the level of rust you desire coat with a clear coat. I will rust a little more. If left un sprayed it will rust completely

to a very rusty level.

No need for paint, and nothing looks as real as real rust.

Dennis

Here is a roof with real rust, and one just barely rusty

Dennis

A dremel with a wire brush to remove rust either in streaks or in areas is easy and very effective.

Then spray with a flat clear to stop or at least really slow down the process.

Dennis

I buy .003 thick steel shim stock from McMaster Carr, the same paper roller mentioned above will roll it like the aluminum.

.003 steel is just a stiff as an aluminum can, and it naturally rust.

Thanks for the heads up Dennis