I screwed up painting the return air grate. The grate is 67 years old and looked beat up. It had some rust also. I sprayed it with two coats of paint but didn’t sand the rust seeing it would of been a pain getting inside the slates. I painted it during the summer and the first time I put the heat on a loud whistling noise comes from the grate. I removed the grate and it’s whisper quiet. Can two light coats of spray paint effect the air flow? I know I should’ve removed the rust but I just wanted it to look better then it did before.
I called a few soda blasting places and they’re booked up till January. So I’m thinking paint stripper will remove the layers of paint. Any help?
I called a few soda blasting places and they’re booked up till January. So I’m thinking paint stripper will remove the layers of paint. Any help?