TROUBLE SHOOTING: Surface preparation
If rust is not removed completely before painting, rust will reappear on the newly painted Surface over time. Painting over rust with Stove Bright® High Temperature Paint does not stop oxidation. That is why it is critical to remove all of the rust before painting.
Paint coming off the surface in large patches indicates a problem with Surface Preparation. The best remedy is to remove all the paint, prepare the surface again and repaint.
Paint bubbling or blistering typically indicates a problem with surface preparation. The most likely cause is a contaminant on the surface that was not removed during surface preparation.