I have a new fiberglass door and would like to stain both sides of the door. I realize that I must clear the door first. Do I need to prime the door first before staining? I am not impressed with gel stain. The two brands I have “tested” on the door seems like it doesn’t leave a any color. Can I use normal stain on a fiberglass door?
Priming your door first isn't necessary, as long as the original factory color is in good shape. You can use a standard wood stain but a gel stain is better. Try Old Masters gel stain, does a better job than most.
Check out <a href="https://www.house-painting-info.com/staining-a-fiberglass-door.html">Staining a Fiberglass Door</a> for more info.