
Cleaning and preserving a metal sculpture for outdoors
Hi all. I'm looking for advice on cleaning and preserving this rusted sculpture for outdoors. I can't say what metal it is specifically, but it's not particularly flaky - I think the pieces are different types of metal, actually.
This is a 2nd-floor patio in my apartment, which is mostly dry and windswept, but gets heavy fog regularly - we have a rainy season, but I might take it inside then.
I currently have Rustoleum "Dead flat clear" top coat spray here, but didn't want to use it before seeing others' advice.
On that note, any advice is appreciated. Thanks in advance!