Rust-Oleum 241169A3 High Heat Ultra Spray Paint, 12 Fl Oz (Pack of 3), Black, 3 Count https://www.amazon.com/dp/B08MWY8KTS/ref=cm_sw_r_cp_api_glt_fabc_7K1DVEXZ59YXTTJQNG6XUse a q tip to apply. Alternatively, some vegetable oil will work to keep rust away. I’d do oil personally. Sent from my iPhone using Tapatalk