Hello all. Until I can afford to buy a nice set of fireplace doors (I don't like build quality of the ones at my local home superstore!), I'd like to do what I can to fix up the ones that came with the house. It's a masonry fireplace in a 1940s cape. The fireplace doors are a "bay window" style, bifold, and the chain-link style screen that you pull like a curtain to close. (I'm sure there's a technical term for that) My issues are: The screens are a tad rusty and difficult to pull. Is there a high temperature paint I can use to make them look nice? I have access to a sandblaster, so I'd be able to clean off the old stuff/rust. OR are they traditionally powder-coated, and a high-temp paint wouldn't work or be safe? Can I use anything to lubricate the track (a metal cylinder) that the screen rides on? The track-bound bifold glass doors are a tad sticky as well. I can tweak the balance of the doors, but haven't been able to get them to "float" in the middle of the track. Similar to above, is there something safe that I can use to lubricate the rollers? Or is there a source in which to replace the rollers? Thanks for any help you can give!